3cx1500 Amplifier

3CX3000A7 10Kw + heavy duty THIS IS A 3CX3000 CONSOLE UNIT. Ovviamente nel PA la 3CX non era presente e caso vuole che ne ho una di scorta ma dalla resa incognita. 3CX1500 Datasheet, 3CX1500 PDF. Includes two-dozen projects and articles from the pages of QST and QEX, published between 1980 and 2003. Linear Amplifier from 1,8 to 30 Mhz 1 Kw or more AMPLIFICADOR 1 Kw para 1,8 a 30 Mhz EA1KO Original de: Ramón Carrasco Caríssimo Presento el montaje de un amplificador lineal para usos generales que cubre las frecuencias. While one west coast amateur blames all failures on amplifier design issues (and oddly enough sells what he says is the only cure for problems), the truth is power grid tubes have multiple causes of failure, virtually none of which have. Mettendo in ordine (si fa per dire), ho trovato una 3cx1500 che giaceva ancora nel suo imballo. OUT OF STOCK. It gives you the Herculean 3CX1500/8877 tube for full legal output with minimum exciter wear. The tuning procedure for both input and output does not differ from the 3CX800 or 3CX1500 designs, for which K1FO articles are a good reference /1/ /2/. Amplifier Drake L4B conversion to 3CX1500 (8877), By W2CQM : Amplifier Drake L4B + 6 meters band, By W2CQM : Toshiba 2SC2879 transistor DataSheet (PDF) Macom MRF421 transistor DataSheet (PDF) Motorola MRF421 transistor DataSheet (PDF) TR7/A connections squematic for PSK31 : R-4 and SPR-4 Crystal Eliminator. Ciao Emilio, condivio a pieno le info fornite da Franco e Giorgio. This Linear Amplifier built by IW2ANU Giordano and orders are expected in 30 days after the E-mail confirmation: [email protected] 12Pill Rebuild. We have many models ranging from 1. 4xGK71 vacuum tube rf amplifier test on the bench Ua = 2500-2750Vdc , Ia=950-1000mA with 100W drive on full load AVG SSB power: 1-1. You have aftermarket amplifier to power your speakers or subwoofer(s), but how do you tune it to reach both your speakers, subwoofer(s) and amplifier's full potential? CarAudioNow has put together a quick guide to do a basic tune on your amplifier to make your stereo reach it's potential. Congratulations! We carry a wide variety of tubes here at The Tweak Shop, with sources from around the world including Russia, Slovakia, and China. Both are full automatic amplifiers, 1. A 3CX1500/A7 8877 144mhz W6PO amplifier. Filament Thoriated Tungsten mesh. While reasonable impedance matching can be important for proper exciter operation, the tuned input circuit of a grounded-grid or cathode driven radio frequency power amplifier provides multiple important functions for the amplifier:. Many RF power amplifiers have used these tubes over the years, such as the Ameritron AL-1500 Series, Alpha 77 Series and Alpha 9500 Find DX Engineering 8877 / 3CX1500 Ceramic Power Triodes DXE-8877 and get Free Standard Shipping on orders over $99 at DX Engineering!. The ACOM 2000A is the first teur HF 500 WATT PA by SM0VPO. The amplifier is shipped in three cartons: amplifier, plate transformer, tube. Alpha 8410 Manual Tune Full Legal Limit Linear Amplifier with Optional Rear Fan (recommended for AM or RTTY) *A one-time handling fee of $160. AMPLIFIER, EXPORT, ONE 3CX1500/8877. I have built a couple of amplifiers mainly for the VHF-UHF. 995,00 (excl. We no longer carry, nor do we recommend EIMAC tubes. The AL-1500 also features time delay starting to protect the 3CX1500/8877 valve and its components and over-current protection to remove the drive if mistuned. 7 MHz: Power supply: 3 power supply transformers: 2330 VA, 200 VA & 1. Interesting tube but I still like the old 3-500s!!. SALE: 8877/3CX1500/YU209 Posted by Bruce Sidari. 3-500Z, 4-400. 3CX800A7 Transmitting Tube, LGR, Eimac (Clean Pullout) (Cosmetic Condition) No longer available for Export. The AL-1500. There are a few issues with the AL-1500 that the user should check. Download Presentation Henry 2K Classic X Conversion to Henry 5K An Image/Link below is provided (as is) to download presentation. Please list your wants and sale items on this forum. We have mostly RCA 811A from the era when they had to last. A 3CX1500/A7 8877 144mhz W6PO amplifier. amplifier will void any warrantees, and could damage your amplifier and make it non operational. The Pecker is a single pulsed tone that works with a 70% off & 30% on duty cycle with your transmitter in the SSB Mode. E: After I got some russian GS35b tubes I noticed their close approximity to the american 8877 (3CX1500). Type: Linear Amplifier. 5 KW Output Linear Amplifier w/ 3CX1200A7 on 240V for US 2000A HF Amplifier The ACOM 2000A Automatic HF Linear Amplifier is the world's most advanced HF amplifier designed for teur use. 8 6,000 --- 0. This page describes the construction of a 1500-watt 2m amplifier using an 8877. The 3-500ZG tube is a 3-500Z tube type that has a rugged graphite anode. IMHO Guitar players are getting away from tubes as well. The amplifier is shipped in three cartons: amplifier, plate transformer, tube. Download the complete Triode Board Manual 'Universal' Control Unit for your Triode Power Amplifier. Alpha 8410 Manual Tune Full Legal Limit Linear Amplifier with Optional Rear Fan (recommended for AM or RTTY) *A one-time handling fee of $160. The AL-1500 also features time delay starting to protect the 3CX1500/8877 valve and its components and over-current protection to remove the drive if mistuned. Each transmitter has four stages, a solid state amplifier (SSA), pre-driver (PDR), driver (DR) and high power amplifier (HPA). Ideal for your new amplifier - or a 'drop-in' upgrade for your existing PA; Simple wiring to one compact PC board; Protects your Triodes, and helps them deliver a high-quality signal. POWER SUPPLY CIRCUIT. I purchased the Plate lines and output tuning capacitors as a kit from Harry, WA4OFS(sk). Legal limit with tons of headroom!. As well as the Russian tubes (valves) including the GS-31, GS-35, GI-7b and GU-74, members of this group build amplifiers with US tubes including the 2C39/7289, 4CX250B, 4CX350, 3CX800, 3cx1000 and 3CX1500/8877. After 20 years these products are nearing the end of their design lifetime and some parts are becoming harder to find,. HB9MS callsign has been in the air on major VHF /UHF contest until 2001 Andy's Dx Group won a number of IARU contest from 1997 to 2001 16th June 2007: HB9DGX SK. 98 Mb 11/07/2010, 13:07 A Eimac 8877 é a mesma 3CX1500, um "canhão" de válvula! Handbook da ARRL 1978. Note that there is a limit to the number of files you can download. eaglemade vacuum tubes capacitors relays chimneys 3cx3000a7 3cx5000 yc-156 yc-179 linear amplifiers cb radio transmitters 3cx10000a7 3cx15000a7 teflon chimneys EagleMade built Amps Eagle made built amps EagleMade built Amps Eagle made built amps EagleMade built Amps Eagle made built amps EagleMade built Amps. Grid Dissipation 500 Watts. Legal limit with tons of headroom!. This short duty cycle allows you to take your time on tune-ups (or testing of your amplifier, antenna, or other equipment), with very little chance of tube damage,. Our products are sold regularly for use in mobile, repeater, and base communications systems. It gives you the Herculean 3CX1500/8877 tube for full legal output with minimum exciter wear. shutoff to remove drive power i fhte amplifier is mis-tuned. The reality is that the 8877/3CX1500 will do the job. I also obtained the high voltage power supply to drive the tubes. Send a few 'dits' and the 9500 quickly changes bands, tunes and loads, putting you right where you want to be, without flipping, twisting, and turning the knobs normally necessary on a manual tune amplifier. I use this amp on AM, but the negatives include: The 2+ minuet turn on wait, the gain is. 10 Alpha 9500 Linear Amplifier User Manual Introduction Product Release Figure 1-1 Alpha Product Capabilities Product capabilities include: Continuous RF output. 2 x Eimac 3cx1500 or yu-209. How to Find out if an Electronic Tube Is Good. I have built a couple of amplifiers mainly for the VHF-UHF. The Fender 5E3 Deluxe is a cathode biased Class AB amp. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. Find great deals on eBay for 8877 tube and 3cx1500a7. The ACOM 1006 6m Linear Amplifier is an improvement on the world's best value in amateur HF amplifier, the ACOM 1000. Before unpacking each carton, check the exterior of the shipping carton for any sign of damage. I have build many Linear Amplifiers for Amateur Radio use and with many types of Triodes. Legal limit with tons of headroom!. The additional turns on the pi-net inductor worked fine. 3CX1500 Datasheet, 3CX1500 PDF. Input of 4. Tube Brand New in box, With a 1997 date code. 144-MHz 1500W 8877 Power Amp. METERING FUNCTIONS R5 on the Meter Board (50-01140-1) adjusts the calibration of the The AL-1500 has two illuminated meters. 500 watts CW output with only 65 watts drive. But don't be offended by the ham telling you that you have a big mouth, because there are some good objective reasons in using such a power. 3-1000Z, 572B, 3CX1500, 4CX1500, 3CX1200, 8877, 8874, etc. The Pecker is a single pulsed tone that works with a 70% off & 30% on duty cycle with your transmitter in the SSB Mode. Operation with zero grid bias simplifies associated circuitry by eliminating the bias supply. Direct grounding of the grid to the chassis is mandatory in amplifiers above 30MHz, and it is the most common option for HF amplifiers also. amp home made tube 3cx1500 ant 5 elements yagi + vert imax 2000 best regards thierry. The now-padded cover materially absorbs the sounds coming from the amp. The idea was to make each block be able to operate "stand-alone" to a great degree. 6mの8877(3cx1500)のリニアアンプ!中古のシャーシなので穴だらけ! 6mはhfとほぼ同じ感覚で製作できる。ただ、自己発振だけは、注意がいる。 鉄球とバキュームコンのrf部は、かっこいいと思いませんか?. gs35b 真空管本体はgs31bと同じもの 上部の銅ヒートシンクに違いがあります。冷却と電源容量にもよりますがよりハードな環境で動作させることができるようです 規格上はアノード損失1500wなのでロシア版3cx1500(8877) 3cx3000だと言う人もいます。. The strip line is recalculated for a different height above the ground plane, due to the mechanical properties of the QBL 5/3500 tube. Key Features:. The amplifier automatically senses when a PC is attached to the USB port, and uses that port. "My Version of a 3cx1500/a7 8877 144mhz W6PO amp" (I am running a little over 4kv on the plate. This 1972 data sheet is for an Eimac 8938. de zender geeft nu met 50 watt in 2 a 2. Band VHF PA 5 Watts, GJ4ICD's 8877 50MHz Amplifier, Homebrew 50 MHz Amplifier, Six-Meter Linear Amplifier, DL5DBM 1KW amplifier for 144 Mhz. This limits the idling plate current to 75-80 ma. It is with deep regret and profound sadness that I inform you of the passing of Andreas HB9DGX on the night between 15th…. -Why Us-Let our family owned business help you by taking some of your unwanted radio equipment off your hands for money or trade. I basically leave the rig set there and just run 50 in for 2m and probably a little less on 70cm when I switch bands, but that doesn't really bother me. Abstract: amplifier RF CLASS B power transistor audio amplifier 500 watts "Power Triode" 200 watt audio amplifier 5 volts audio amplifier Power Triode 000A7 Eimac 8160 Text: Eimac Power Grid Tube - Quick Reference Data Sheet Page 1 of 1 3CX10 , 000A7/8160 The Eimac 3CX10 , 000A7/8160 is a high-mu power triode and is intended for use as a zero. Find great deals on eBay for 8877 tube and 3cx1500a7. 3 kW is permissible up to 110 MHz. The tuned input circuit is necessary to keep the IMD down in this amp and all grounded-grid amps. You can also get involved by allowing us to build your very own HF tube amplifier or we can repair your current one. The biggest and best ham radio classifieds on the web! Buy, sell, trade HF and VHF equipment, towers, antennas, rotators and more!. 8873 TECHNICAL DATA 8874 8873 8874 8875 HIGH-MU TRIODES 8875 The ELMAC 8873, 8874, and 8875 are compact external-anode, ceramic/metal triodes intended for use in zero-bias Class-B amplifiers in audio or radio-frequency applications. The 811A amplifier is ok with drop-in replacement 572B tubes. We will email you when your albums are available. 00 will be added to your shipping total at checkout. The AL-1500 also features time delay starting to protect the tube and over-current shut off to remove the drive if mistuned. I'm able to install the RF deck without the need of a helper. It gives you the Herculean 3CX1500/8877 tube for full legal output with minimum exciter wear. I've trashed one that was kind of a mess. Amplification factor 200. Skipper by Palomar 4 tube 6146w linear amplifier. This exclusive feature of Ameritron amplifiers indicates proper amplifier operation better than any other parameter. A 3CX3000 can put out more power, but when you have a limit of 1500W, the gain of the 8877/3CX1500 alone makes it the right choice for a ham amp. amplifier will void any warrantees, and could damage your amplifier and make it non operational. 94 times for a 68K grid stopper and a 1 Meg grid resistor), and in amplifiers with a high and low level input, the grid stoppers also serve as attenuators. Tube amplifiers are a popular project among hams. I don't think I've ever heard a PP EL84 amp that sounded bad. Ciao Emilio, condivio a pieno le info fornite da Franco e Giorgio. Select from 4 different primary voltage ranges, from 205-219 VAC to 252 to 265 VAC. China Vacuum Electron Tube Fu508f Equivalent to Eimac 3cx1500A7 Power Triode Tube, Find details about China 3cx1500A7, Fu508f from Vacuum Electron Tube Fu508f Equivalent to Eimac 3cx1500A7 Power Triode Tube - Eec Technology (Beijing) Corp. Regulated DC power supply or filament supply. 3 kW is permissible up to 110 MHz. Shoot, I'm listening to a SE EL84 amp from a Magnavox console right now and even this little guy sounds pretty great. Here you will find instruction manuals, service manuals, user guides schematic, brochures etc. Frequency bands: all HF amateur bands: 1. High Power tubes. Many have built amps with the real "Transmitting Tubes" such as the 4CX250B or 4CX400 or 4CX800, 3CX800 or 3CX1500 tubes. All information, images, and documents on this website are the sole property of Ameritron Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Ameritron. Once they warm up tube power supplies are very stable and are seeing some use in labs now when the high precision solid state alternatives are a bit outside of the budget. due 8877 SE alimentate bene, forniscono anche 4200W MA vanno raffreddate il doppio, alimentate con corrente doppia, con trasformatore di potenza doppia, con commutatore di banda sovradimensionato, Pgreco di in e out da modificare, connettore di uscita da modificare (almeno un 7/16, C o flangia). 10/12 Meters modifiable. output of the linear amplifier you intend purchasing!! All our linear amplifiers are rated to 50% duty cycle! Damage caused by transmitting high power into low power rated antennas is not covered by warranty! Please note that almost all amateur linear amplifiers will operate ONLY within specified amateur band/s!. Both are full automatic amplifiers, 1. I don't remember seeing an amplifier that covered 6 and 10 meters, but I haven't looked through my old books in a long time. There's a tale about a Soviet pilot who decided to defect in 1976 by landing his MIG-25 in Japan. The AL-1500 also features time delay starting to protect the tube and over-current shut off to remove the drive if mistuned. Has input and output tuning as well. キーワード・略語: 内 容 ・ 詳 細: 1: リニアアンプの自作: 理論は必要、経験が重要。 難易度は出力電力の二乗に比例する (je1hpm談). lets test a 3cx3000a7. There are a few issues with the AL-1500 that the user should check. Ameritron Al-811H Linear Amplifier Demonstration by K1OIK. Ideal for your new amplifier - or a 'drop-in' upgrade for your existing PA; Simple wiring to one compact PC board; Protects your Triodes, and helps them deliver a high-quality signal. The idea was to make each block be able to operate "stand-alone" to a great degree. Complete RF Amplifier Design and Analysis Calculator. gs35b 真空管本体はgs31bと同じもの 上部の銅ヒートシンクに違いがあります。冷却と電源容量にもよりますがよりハードな環境で動作させることができるようです 規格上はアノード損失1500wなのでロシア版3cx1500(8877) 3cx3000だと言う人もいます。. Henry Radio Eimac 3CX-3000A7 Linear Amplifier Amp 3cx3000 Ebay. 1 Valido per spedizioni verso Italia. Triode Amplifier Control and Protection Please dont start to build the Triode Board until you have read all of Sections 35. Even a poorly designed grounded grid amp will likely be well-behaved. A 3CX3000 can put out more power, but when you have a limit of 1500W, the gain of the 8877/3CX1500 alone makes it the right choice for a ham amp. 2 x Eimac 3cx1500 or yu-209. I designed and built a simple DC regulated power supply to drive the 300B filaments in the "Unnecessarily Complex 300B Amp" some time ago. Nuova realizzazione di amplificatore vhf con valvola 8877-3cx1500 Performance data for the 144-MHz power amplifier under the conditions most suitable for amateur ssb (2000 watts PEP) and cw (1000 watts). Amplifier Drake L4B conversion to 3CX1500 (8877), By W2CQM : Amplifier Drake L4B + 6 meters band, By W2CQM : Toshiba 2SC2879 transistor DataSheet (PDF) Macom MRF421 transistor DataSheet (PDF) Motorola MRF421 transistor DataSheet (PDF) TR7/A connections squematic for PSK31 : R-4 and SPR-4 Crystal Eliminator. The AL-1500’s grid overload circuit protects the tube from excessive grid current; if 175 mA of peak gric current is reached, the “OPR” LED will no longer light and the amplifier will go into a bypass condition until reset by the operator. This 1972 data sheet is for an Eimac 8938. The above voltage doubler circuit is really the same as for a 3CX800 amplifier, the only difference is that the transformer is "beefed" up and the Zener diode is a 12 volt 50 or 75 watt version (isolated from chassis). 3CX15000 Datasheet, 3CX15000 PDF. Linear Amplifier from 1,8 to 30 Mhz 1 Kw or more AMPLIFICADOR 1 Kw para 1,8 a 30 Mhz EA1KO Original de: Ramón Carrasco Caríssimo Presento el montaje de un amplificador lineal para usos generales que cubre las frecuencias. VHF linear amplifiers is a curation of 57 resources about , 2 m. gs35b 真空管本体はgs31bと同じもの 上部の銅ヒートシンクに違いがあります。冷却と電源容量にもよりますがよりハードな環境で動作させることができるようです 規格上はアノード損失1500wなのでロシア版3cx1500(8877) 3cx3000だと言う人もいます。. 3CX800A7 Transmitting Tube, LGR, Eimac (Clean Pullout) (Cosmetic Condition) No longer available for Export. A 3CX1500/A7 8877 144mhz W6PO amplifier. The E[MAC 3-500Z is a compact power triode intended to be used as a zero-bias Class-AB2 amplifier in audio or radio-frequency applications. AMPLIFIERS. 3CX1500 parts. They are indirectly heated tubes and are run in a parallel configuration. 8 thru 30 Mhz. Since I deal in surplus, my stock rotates weekly. a 3cx1500 a7 8877 144mhz w6po amplifier that running a little over 4kv on the plate this amp will do over 2kw out. lets test a 3cx3000a7. 5"D x 17"W x 10"H, and covers all bands, 160-15 Meters, including WARC and MARS (80% of full output set to nearest amateur band). It's a HF amplifier from Henry Radio Electronics of Los Angeles California. Here you will find instruction manuals, service manuals, user guides schematic, brochures etc. Using the Herculean 3CX1500A/8877 ceramic tube with its high power gain, the AL-1500 needs only 65 watts of drive from your exciter to deliver the goods- transceivers and other exciters just loaf at 1500 watts out. c RF industrial oscillator or amplifier 7,000 0. 3CX1200A7-RFPR Transmitting Tube, RF Parts Rebuild (on customers good core, *** to be sent in advance) ***please arrange to send Your Good core in to our facility to have it rebuilt for you *** we cannot sell you a rebuilt tube directly without an exchange in advance. The tuning procedure for both input and output does not differ from the 3CX800 or 3CX1500 designs, for which K1FO articles are a good reference /1/ /2/. Se il tuo amp assorbe 10 A sulla rete, il relè mettilo da almeno 20 A e spera in Buddha l' Illuminato. 20 watts key and 280 watts peak input drive MAX ! gives me 650+ watts RMS and 2500 + peak watts. The AL-1500J is the export model for Japan and covers 160 through 10 meters. This amp has a brand new Eminence Delta 15A speaker, a new Class D power/output section, and the original great sounding vintage pre amp section. Amp works 100%, no problems what so ever, like I said, it has 2 hrs on it, if that. the octal 'beam-power' amplifier types) may date from the early 50s whereas the newest (i. A "3cx1500" is an 8877 all day long; it's a bad idea to buy an amp that uses 8877's because of the cost and the fact that the tubes are not "durable". Your import is in the queue. Per i tempi di consegna verso altri Paesi e le informazioni sul loro calcolo vedi qui: Condizioni di consegna e pagamento 2 IVA inclusa. Regulated DC power supply or filament supply. 7 MHz: Power supply: 3 power supply transformers: 2330 VA, 200 VA & 1. Abstract: 3CX1500A7 Eimac 3cx1500a7 8877 tube 3cx1500*a7 3cx1500a filament Eimac 3cx1500a7 8877 eimac 8877 vhf linear amplifier Text: No file text available. On 2m this is around the +20dB mark on the meter when you TX. Importing your Facebook albums. Output power 10000+ watts with 400 watts bird and 1250 peak drive. If there is a malfunction in the bias board due to any unexpected event, the fuse will open and the amp will cut off. Following Information came from EA7EU. Experience the magic of almost instantaneous band switching and tuning with the Alpha 9500. The old capacitors was going with a big bang att 0500 o'clock in the morning, wakeing up the whole house And i get a good Picture about what my wife was. This is the manual page for _other. Mettendo in ordine (si fa per dire), ho trovato una 3cx1500 che giaceva ancora nel suo imballo. 5"D x 17"W x 10"H, and covers all bands, 160-15 Meters, including WARC and MARS (80% of full output set to nearest amateur band). Technical review : how to select an HF tubes amplifier ? Why using so much power ? This is a pertinent question. Many RF power amplifiers have used these tubes over the years, such as the Ameritron AL-1500 Series, Alpha 77 Series and Alpha 9500 Find DX Engineering 8877 / 3CX1500 Ceramic Power Triodes DXE-8877 and get Free Standard Shipping on orders over $99 at DX Engineering!. This is the LAST of the US made 811A. Operation with zero grid bias simplifies associated circuitry by eliminating the bias supply. Considering digital HD is now being broadcasted for free, I started searching for a reasonable size and. ) they believe the amp with the chinese tube is perfectly okay but they offer it with the Eimac tube because they say some hams won't buy it any other way. Play, streaming, watch and download Amp Supply LK800 C - 2. It gives you the Herculean 3CX1500/8877 tube for full legal output with minimum exciter wear. Henry used Greenstone exclusively in the last 7 seven years of their amplifier production and for replacement in all amplifiers. Find great deals on eBay for 8877 tube and 3cx1500a7. AMPLIFIERS & Headphone Amps. Latching relays control each of 4 antenna ports, so the last antenna you chose, stays selected - even without power to the amplifier. AMERITRON AL-1500 Amplifiers HF Tube, AL1500. 5 Set the Input Drive You must set the transceiver output power properly. The amplifier comes wired from the factory for 240 VAC. 8 thru 30 Mhz. You can use KT88 in place of 6550 in most cases. 1500 watts HF amplifier, 10-160 metres with 3CX1500/8877 tubes The Ameritron ARI-500 Amplifier Radio Interface reads band data from your Icom, Yaesu, Kenwood or. Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Find great deals on eBay for eimac and ham radio amplifier. ] on Amazon. The Ameritron AL-1500X is the export model and covers 160 through 10 meters. 5kW 2) Linear Amplifier 8 X QB4 OR 4-400 TUBES 3) Linear Amplifier 2 X GU84B TUBES 4) Linear Amplifier 6 X QB4 OR 4-400 TUBES VHF 144-146 Mhz LINEAR AMPLIFIERS 1) 4CX-350 TUBE ,700W OUT 2) 2 X 4CX-250TUBE , 1KW OUTPUT PUSH PULL 3) PUSH PULL 2 X QB4 (SIMILAR 4-400 ) 900W OUT 4. TUBE AMPLIFIERS 87,5 - 108 MHz TRIODE AMPLIFIERS VJ1000 20 W IN 800 - 1000 W OUT 3CX800 tube 14HE rack, Monophase VJ1000HP 30 W IN 1000 W OUT 3CX1500 tube 14HE rack, Monophase VJ2000 60 W IN 1800 - 2000 W OUT 3CX1500 tube 20HE rack, Monophase /06 Telemetry connections option. Shoot, I'm listening to a SE EL84 amp from a Magnavox console right now and even this little guy sounds pretty great. Homebrew 3CX3000A7 Amplifier Note: I have many images of the build in progress- It will take some time for me to get this page into shape= I had been looking for a rugged HF linear amplifier with plenty of headroom. If you look at the schematic of a typical guitar amplifier, you will notice that there is a resistor in series with the grid of the first tube, usually around 68K or so, and there is also a resistor in series with the grid of the power tubes, usually 1. lets test a 3cx3000a7. New Listing Bimbo Model 100 Bilinear CB Linear Amplifier 100 Watt Amp Excellent Condition. 3CX1500A7 TUBE in the amp tests at fulll output, has a heavy duty 1/2+ amp transformer that surges to 1 amp. This linear amplifier utilizes two 8877 tubes. What does all this mean? It means that if you run an 8877 in class AB Grounded Grid with a maximum of 60% efficiency, and with the maximum rated power output of 2075 Watts, the dissipation of the tube will be 1383 Watts and the required drive would be 64 Watts. So you send it to the amp tech who keeps it for a couple weeks, replaces and biases the amp. On the other hand the grounded grid, or cathode driven circuit is inherently stable. TM · Grid and anode current metering · LED status indicators · Warm-up timer · Adjustable regulated cathode bias · TX/RX switching and relay supplies · Simple wiring to one PC board · Easy to build ­ clear 'how-to' instructions in this User Manual. eaglemade vacuum tubes capacitors relays chimneys 3cx3000a7 3cx5000 yc-156 yc-179 linear amplifiers cb radio transmitters 3cx10000a7 3cx15000a7 teflon chimneys EagleMade built Amps Eagle made built amps EagleMade built Amps Eagle made built amps EagleMade built Amps Eagle made built amps EagleMade built Amps. It's a question of design decisions balanced against cost and risks. com to relltubes. What does all this mean? It means that if you run an 8877 in class AB Grounded Grid with a maximum of 60% efficiency, and with the maximum rated power output of 2075 Watts, the dissipation of the tube will be 1383 Watts and the required drive would be 64 Watts. Many of the amps heard on the band could benefit from a tuned input and there is no reason not to build this amp with one. It puts out 1/2 the power of the two holer. Ham radio spoken here: Welcome to ARRLWeb, the American Radio Relay League's home on the World Wide Web! The League, a membership service organization headquartered at 225 Main St, Newington, CT 06111, USA, serves the over 600, 000 Amateur Radio operators, enthusiasts, experimenters and hobbyists in the United States, its territories and possessions. It is small enough to fit into a MLA 2500 or any of the Dentron amplifiers. Has input and output tuning as well. 10 Alpha 9500 Linear Amplifier User Manual Introduction Product Release Figure 1-1 Alpha Product Capabilities Product capabilities include: Continuous RF output. The Alpha 9500 is the culmination of over 40 years of design and engineering. The Fender 5F6A Bassman and most Marshall amps are fixed bias Class AB amps. Use it to tune subwoofers or speakers alike. The RF-355 is equiped with a 3CX800 and given for 500-750 W, the RF-353 with a 3CX1500 given for 1000-1500 W (24/24, 365/365, -30°C to +50°C, up-to 3000 meters ASL). Electron tubes are almost outdated, but there was one time when the electron tube was in every piece of electronic hardware that received or transmitted Radio Frequency signals or accomplished. 5kW can be expected on 144MHz in a grounded grid amplifier. 3CX1500A7/8877 Data Sheet (1975)3CX1500A7, 3CX1500-A7, 8877 3CX1500D3 Data Sheet 3CX1500-D3 3CX1500D7 Data Sheet 7, 3CX1500-D7 3CX2500A3 Data Sheet (1967)3CX2500-A3 3CX2500D3 Data Sheet3CX2500-D3 3CX2500F3 Data Sheet (1967)3CX2500-F3 3CX2500H3 Data Sheet (1966)3CX2500-H3. eimac 8877-3cx1500, yu-158 yu-158 Is Similar To: 001838 001837 Eimac Heater Collets For Transmitter Tube Socket (36. Direct grounding of the grid to the chassis is mandatory in amplifiers above 30MHz, and it is the most common option for HF amplifiers also. In front of a 3cx1500 tube from Eimac. Car Stereo Head Units Car Stereo Speakers Car Stereo Amplifiers Radar Detectors Alarms and Security Backup Cameras and DVRs Hands Free Cellular HD/Satallite Radio Video, Interfaces and Monitors Amateur Radio CB Radio Police Scanners Blind Spot and Backup sensors. Tube Brand New in box, With a 1997 date code. The additional turns on the pi-net inductor worked fine. "I needed a very high quality print to enter in a photography art show. However, Eimac's quick reference guide shows the 8938 to be known as the 3CX1500C7 too, As always, data on this site is probably not the latest, but I hope it is better than the usual ham tactic of guessing at values. For my money I choose the Eimac 3CX1500A7 or 8877. Grid is a ring between base and anode. EIMAC original tube socket and chimney assembly type SK-2210 and SK-2216 - strapped for grounded grid applications with about half inch silver flat stock to reduce inductance at high THIS OFFERING IS BY REQUEST OF AN 'ER BUT OPEN TO NOTE : The socket assembly can. Taking a 60# amp out of the chassis to check the bias is a royal pain in the butt. I think the price difference is 4 or 5 hundred dollars. The Ameritron AL-1500X is the export model and covers 160 through 10 meters. However I sold that amp many years ago. The biggest and best ham radio classifieds on the web! Buy, sell, trade HF and VHF equipment, towers, antennas, rotators and more!. Electron tubes are almost outdated, but there was one time when the electron tube was in every piece of electronic hardware that received or transmitted Radio Frequency signals or accomplished. The Ameritron AL-1500 Linear Amplifier will deliver 1500 Watts CW output with only 65 Watts drive. If your tube isn't listed then pick one with the same Max Dissipation Rate which is shown to the right in the tube list. choke misuratore di potenza. The low distortion. Considering digital HD is now being broadcasted for free, I started searching for a reasonable size and. Ideal for your new amplifier - or a 'drop-in' upgrade for your existing PA; Simple wiring to one compact PC board; Protects your Triodes, and helps them deliver a high-quality signal. IMHO Guitar players are getting away from tubes as well. The filaments are warmed up for three minutes before high voltage is applied. 8 The 3CX1500D3 is a forced air cooled, ceramic/ metal, medium-mu power triode designed primar-ily for use in industrial radio frequency heating services. Measures 18. Listed under the Technical Reference/Amplifiers/VHF Amplifiers category that is about Amateur linear amplifiers. Refurbished MKS 5104896 RF AMPLIFIER MRI Accessories For Sale - DOTmed Listing #2281972: *** THIS IS ON EXCHANGE ONLY PRICING *** CALL US FOR OUT-RIGHT PURCHASE GE 3. High Power tubes. All irregularities should be noted. Used Alpha 9500 Full Legal Limit Autotune Amplifier - Manufactured August 2015. 2 x Eimac 3cx1500 or yu-209. They are indirectly heated tubes and are run in a parallel configuration. I have a writeup in the 2014 Radio Amateurs Handbook (chapter 24) about antenna relay sequencing thoughts. This page describes the construction of a 1500-watt 2m amplifier using an 8877. Taking a 60# amp out of the chassis to check the bias is a royal pain in the butt. The AL-1500 has two illuminated panel meters. So you've crossed that bridge and gotten into tubed electronics. The Ameritron AL-1500 Linear Amplifier will deliver 1500 Watts CW output with only 65 Watts drive. Ergonomics, display, menu and knobs are excellent for mobile, but it is also an excellent base station to drive a full legal power amplifier, best if it is a real big beast. cleaning out the spare parts shelf in the ham shack this week. I have built a couple of amplifiers mainly for the VHF-UHF. This short duty cycle allows you to take your time on tune-ups (or testing of your amplifier, antenna, or other equipment), with very little chance of tube damage,. Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Amplifiers aside there's still uses for tubes. This 1972 data sheet is for an Eimac 8938. For the countries not given on the list please send an inquiry mail. Shoot, I'm listening to a SE EL84 amp from a Magnavox console right now and even this little guy sounds pretty great. The Bird 43 meter is in average mode with a 10kW element. It gives you the Herculean 3CX1500/8877 tube for full legal output with minimum exciter wear. AMERITRON AL-1500 Amplifiers HF Tube, AL1500. The AL-1500. You have aftermarket amplifier to power your speakers or subwoofer(s), but how do you tune it to reach both your speakers, subwoofer(s) and amplifier's full potential? CarAudioNow has put together a quick guide to do a basic tune on your amplifier to make your stereo reach it's potential. Send a few 'dits' and the 9500 quickly changes bands, tunes and loads, putting you right where you want to be, without flipping, twisting, and turning the knobs normally necessary on a manual tune amplifier. I have a writeup in the 2014 Radio Amateurs Handbook (chapter 24) about antenna relay sequencing thoughts. This is open to all. The filaments are warmed up for three minutes before high voltage is applied. this power supply has a built in high voltage meter and bleeder resisters soft start and 4. RCA ANT 3020X - TV antenna - outdoor - FM, UHF, VHFI use Direct TV in my home. 3-1000Z and an Unknown Tube. Alpha 9500 HF Linear Amplifier Operating Manual Alpha Radio Products Setting Up the Amplifier Product Release 1 5. amplifier will void any warrantees, and could damage your amplifier and make it non operational. Ham radio spoken here: Welcome to ARRLWeb, the American Radio Relay League's home on the World Wide Web! The League, a membership service organization headquartered at 225 Main St, Newington, CT 06111, USA, serves the over 600, 000 Amateur Radio operators, enthusiasts, experimenters and hobbyists in the United States, its territories and possessions. 8877 Linear Amplifier. vista generale rele' uscita. This feature is not available right now. This amplifier is as rugged and reliable as anything we've created. Henry Radio manufactures a broad range of solid state RF power amplifiers for many different applications. Personally, I don't realy like to trash a working console to pull the amp, especially if the cabinet is in good shape. Even a poorly designed grounded grid amp will likely be well-behaved. Ergonomics, display, menu and knobs are excellent for mobile, but it is also an excellent base station to drive a full legal power amplifier, best if it is a real big beast. While it's difficult (for me, anyway) to determine the dates of manufacture - I'm guessing the oldest (i.