Yc156 amplifier schematic. jpg Radford STA15 amp radfordsta15.

Yc156 amplifier schematic WV7U - Hank's Amp Pages WV7U YC156 and 3CPX800 amplifier projects. Bias circuit has also been tested, Heater supply, inrush protection for the heater (yeah Eimac YC156 Anode voltage 7 kV no load, 5. This circuit takes samples of the RF input and output of the amp under test, adjusts them for the amp gain, detects them with log amps, and displays the difference on a scope. Audio equipment, electronics, guitar amplifiers, effects pedals. YC156 Conversion This particular amplifier project started almost thirty years ago. Explore different amplifier circuit designs and components to enhance your audio experience. All The TL431 has it’s own internal OP-AMP in a TO-92 package. com sites! Find a detailed audio power amplifier schematic and learn how to build your own amplifier for high-quality sound reproduction. Explore different amplifier circuit designs and find the perfect one for your audio amplification needs. YC156 Amp Pictures 90. Created Date20020216030612Z grid is grounded. PDF 1. Discover 45 tube amp schematic designs and learn how to build your own high-quality tube amplifier for audio reproduction. Ian claims veryprecise shunt regulation with little variation under varying loads. -- When Eimac states that the 8877's ratings for "Amplifier or Oscillator Service" are yadda, yadda, yadda, they are not talking through their hats. Within each of these categories there almost always are two or more options available. Industrial RF generators will use a tube in a big power oscillator circuit. I'm using pi networks with a Q of about 4. 00 Pick up only. These are invaluable reference tools if you are digging around inside of your vintage Fender amplifier. io web and app experience, which will be available starting Thursday, April 25th. Band switch for 160m - 10m. com Eimac YC156 Anode voltage 7 kV no load, 5. Hank, WV7U had used ahigh power OP AMP in the YC156. Pictures Design notes Specifications Schematics Questions Test data and Neve 1081 Preamp Schematic Neve 3405 Schematic and Block Diagram Neve 3415 Schematic and Pinout Orban 111b Schematic Set Orban 642 Schematic Set and Block Diagram Orban 672a Schematic Pultec EQP-1A Complete Schematic Set and Manual Quad Eight AM-10 Discrete Op Amp RCA BA-3c, BA-4c, BA-6a, BA-21a, BA-23a, BA-24a Schematics RCA OP-6 and OP-7 Marshall Amp Schematics to assist you with your amplifier repairs and modifications. You can think of it as a Here are hundreds of original Fender schematics and layout diagrams, available for free viewing and download. Why? Well, I was always unhappy with the 4CX1000A, and, I always wanted a tube with handles! This photo might show you why. 65 V Mains voltage 240 VAC 1 phase Mains current 31 A rms, 40A max Tuning method manual with presets; phase detector for future auto tuning option Size standard 19" wide, 29. It wouldn't work for him at 144MHz. Look on my YC-156 Amp project pages at http://www. 509-860-5704 20-160m AMPLIFIER New YC-156 amplifier 12-2020 built here in Illinois. Downloadable PDF service manuals, repair manuals, schematics, parts lists, circuit diagrams, disassembly, troubleshooting and service menu guides for hundreds of electronics brands. Can get that tube cheaper than the 4-1000A and 3-1000. So you'll need to download the FREE Adobe Acrobat Reader via the link below to be able to view schematics. It is better to run a tube cool than to stress a smaller tube for high dutycycle modes. Created Date20020216030612Z Yamaha service repair manuals, schematics, circuit diagrams, parts lists, troubleshooting, disassembly, service menu. This page contains links to some Valve audio amplifier and other schematic circuit diagrams for free download. Data YC156 Tube Replacement & Substitute Information The YC156 is commonly used as an EIMAC YC156 tube substitute in high-power RF systems, including broadcast transmitters, industrial equipment, and MRI amplifier setups. Getting Started All the files at Schematic Heaven are in Adobe Acrobat form. The circuit looked intriguing. Next I tried the G3SEK/ WD7S TIP147 darlington circuit and adjusted the component values for a 33 volt bias setting similarto my OP AMP design. But it also has some useful features: vacuum relay QSK, hot-switching protection, and faster warmup (3 minutes instead of 7, but still annoying). This is true even when the amplifier does not have a directly grounded grid. Complete schematic packageIncludes all schematics below in one indexed file pdf 1200k RF deck pdf 49k Control board 1 pdf 126k Control board 2 pdf 40k Motor drivers pdf 23k Main CPLD pdf 26k Display CPLD pdf 13k Display board pdf 60k Chassis mounted parts pdf 29k T/R module pdf 12k Cathode board 1 pdf 24k Cathode board 2 pdf 28k Cathode board 3 (click on the small pictures to see a large picture in another browser window) WV7U's YC156 and 3CPX800 amplifier projects. I can also ship to the US using f. 7MB Farfisa VIP-345 (Acrobat Reader required) (Thanks to Frank T. The YC156 triode is the third tube type to be used in this chassis. Learn how to build an RF amplifier with a schematic diagram and improve the power and efficiency of your radio frequency circuit. It helps engineers and hobbyists understand how to construct the amplifier and allows for easy troubleshooting and modification. This kind of tube has very low gain, and won't multiply the power level enough to build a satisfactory amplifier. What is the cathode input impedance of the YC156?I have found it to be in the range of 25 to 45 ohms for class AB2 operation on 20m and 40m. pdf Single ended tube amplifier with Western Electric 212 212 amp. This kind of industrial oscillator is used to melt plastic, weld plastic or generally heat stuff up with RF. How Are you sure you wish to delete this message from the message archives of ham-amplifiers@groups. The attributes of high gain, low grid interception and outstanding intermodulation performance make this tube well-suited for applications such as MRI and pulsed linear amplifier service. I have completed the modification to my homebrew 8877 amplifier, replacing the 8877 with a YC-156. Find the perfect wiring diagrams for your DIY projects. Like the YC156 amp, this amp has some serious limitations: manual tuning, loud blower-must be remote controlled, big/heavy, etc. Eimac tell me the tube is rare, so my chances of finding a second :-) I have posted some more pictures, schematics, and finally some pictures of my HV supply etc. All the best parts,vacuum caps,relays,PWD 3 Amp CCS Plate trans,etc,etc. 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 Like the YC156 amp, this amp has some serious limitations: manual tuning, loud blower-must be remote controlled, big/heavy, etc. The other benefit of using this circuit is that the main power switch need not carry the full load current (up to 20Amps on a legal limit amp). A copper disc on a threaded shaft tunes it and it has a copper disc adjustable closer or Offering for sale another YC-156A amplifier. bmp Push-pull amplifier with 845 tubes for Altec systems by Sakuma 845PP_1. The Amp is NOT finished, however both input and output circuits have been cold tested for resonance, good Q etc etc. Our lab was asked to upgrade the Erbtec to a "Marconi" version which required about 1 or 2 dB more gain and this tube couldn't quite pull it off. Unlike many manufacturers today in the past. Utilizing a beam-forming cathode and control grid geometry, this tube provides the gain of a tetrode with circuit advantages and a simplified design of a triode. This time he utilized a LM358 OP AMP driving an IRF840 enhancement mode FET as a shuntregulator. YC-156 Amp built by Blair Wright, KD8D ex K8BOW Now you can easily mount your Eimac YC-156 tube in your amplifier chassis without drilling a ton of holes and spending hours with a file. So fellas, I'm going to part with it. Click here for more information. A YC156 is shown to the left, but the 3CX5000A7 looks identical. To shut down the PS, the user pushes the "OFF" button, AC main power is cut to the starter relay coil, the contacts release, and the unit shuts down. Click on the image for a higher resolution larger version. There are hundreds of pages of Tube amp information on my library page. Schematic Heaven, Tube, Amplifier SchematicsThanks to Larry, wherever you are. The fixed and variable attenuators, along with the coupling factor of the directional couplers, are adjusted to set an equal and appropriate level at the log amp inputs. 000+ FREE Audio Schematics and Service Manual downloads for both old and new Hi-Fi, Home, PRO & Vintage audio gear This site contains all information from the former audio-circuit. 5000. Currently we have 27502 Diagrams, Schematics, Datasheets and Service Manuals from 978 manufacturers, totalling 16. High frequency plastic welder with CE certificate. Get step-by-step instructions and diagrams to boost your radio's power. However, I don't have data sheets for all tubes. gif Audio Research SP8 preamp audio_research_sp-8_schematics. Radio tubes are valves. . Listed under the Technical Reference/Amplifiers/HF Amplifiers category that is about Amateur linear amplifiers. Where possible, Eimac data sheets are provided, as Eimac tubes are used by so many hams. The amplifier uses four Motorola MRF150 50 volt TMOS power FETs configured in push-pull/parallel and biased for class AB linear operation. magicio. Listed under the Technical Reference/Amplifiers category that is about RF power amplifiers. I do not like to boost a tubes rating, I rather prefer then to use a bigger one. Yamaha Tube amp schematics, Hoffman amps tube amp schematic library I have an unfinished YC156 amplifier that was built by a Italian ham who was a designer of broadcast transmitters. Includes circuit diagrams with PCB & step-by-step explanations. Owners Manuals, Service Manuals and all data from Schematic-Heaven, BAMA and other archives: Over 500,000 schematics and technical pages -- terabytes of information. Tubes Sockets Documents and White Papers Most wanted: FU-728F (another datasheet here) Tubes Sep 15, 2024 · My homebrew YC-156 linear amplifier's RF deck. Overseas service center available. dk & audio-circuit. See pictures, schematics, test data, links, and more! How to select an amplifier Tube amp Schematics index page There are over 3500 Tube amp schematics and other types of schematics in the EL34World Schematic library. Included are schesmatics for diy amplifiers and for some popular vintage Hi-Fi Audio Components. Everything you wanted to know about using the YC156 or 3CPX800 in a ham radio linear amplifier. 5 to 30 Mhz RF Amplifier This high range amplifier is very small [SB200 size] Vacuum variable input and output caps as well input and output switching. > GL! > Phil, K5PC > Subject: [AMPS] YC-156 Cathode/Filament Circuit > > > Hello List Members, > First I would like to For those who asked, the amp can be disassembled fully, all sides, top/bottom, front/back etc can be dissassembled from the rest. > RF is coupled to both sides of the heater ? shouldn't the drive go to the cathode in a cathode-driven amplifier? The cathode is connected internally to one side of the heater on a YC-156. Understand the different components and their functions in amplifying power for audio signals. Discover the circuit schematic for an amplifier, complete with detailed diagrams and explanations. > At the B- end of the cathode choke, there is another bypass > cap Mar 10, 2025 · Handbook of RF and Microwave Power Amplifiers wv7u yc156 and 3cpx800 amplifier projects see pictures schematics test data links and more . It is a replacement for the YC-156 triode and has a maximum anode voltage of 6500 volts and peak current of 67 amperes, with forced For those interested. io? This cannot be undone. 25" high (without wheels Discover a vast archive of guitar amp schematics from vintage to modern models. Oct 19, 2011 · I have posted some pictures of the hi pot test setup of my new Eimac YC-179 vacuum tube (MRI pull). Hank's cold war nixie and dekatron clock, and YC156 and 3CPX800 amplifier projects. GIF Welcome Music Service Technicians OBSOLETE, VINTAGE, OUT OF PRINT SERVICE MANUALS, SCHEMATICS, OWNERS MANUALS Online Schematics, Service Manuals, Owners Manuals, Users Manuals Same day (usually within the hour) downloads on most: Donald Hellen All Messages By This Member #2744 > Message: 2749 > Date: 08/9/2006 1:21:26 > From: Dave < I worked for Erbtec from about serial number 10 through 1200 of these boards, and the 20kW YC-156 based amplifier that they were part of. Everything is screwed together with threaded screws and "L" alu profiles. Back when we measured power as plate input power and not RF output power, the FCC even had a rule similar to this. And for those who asked about the price, well $1500 for the whole thing and I'll spilt shipping in half. YC156 amp pictures Design notes, Q and A Specifications Schematics Test methods, data and results What is the cathode input impedance of the YC156?I have found it to be in the range of 25 to 45 ohms for class AB2 operation on 20m and 40m. jpg Radford STA15 amp radfordsta15. It can handle 5000 watts of plate dissipation and has a beam-forming cathode and grid geometry for high gain. Jul 24, 2016 · Our collection of Hi-Fi Audio Schematics. Learn how amplifiers work and how to build your own amplifier circuit. There is also a huge library of effects and solid state schematics. Tube YC 156 or Röhre YC156 ID81380, Transmitting Triode, air cooled, and shown. Simply jigsaw cut a hole about 8 inches square and cover the hole with this adapter. So shipping should'nt be a problem. These are not full data sheets. com click on my web page for photos. Includes tube data and amplifier projects. Forside Amplifier Antennen Circuit Diagram GS35b YC-179/3CPX5000A7YC-179/3CPX5000A7 schematic-diagram. For those who asked, the amp can be disassembled fully, all sides, top/bottom, front/back etc can be dissassembled from the rest. Henry Radio manufactured high power tube amplifiers for Amateur Radio, business, commercial, industrial and scientific use for nearly 50 years, but that part of our business closed in 2005. The input and output circuit of a grounded grid amplifier are connected in series through the tube. 2. htm Many have asked where to find details and pictures, please look at the TOP of all the pages, and use the buttons there to navigate. The 3CX5000A7 was offered to me first, and work started. Purchase Eimac YC156-A High Power RF Vacuum Tube in Three Lakes, Wisconsin, United States, for US $430. Grounded Grid Amplifiers An amplifier with the input applied between the cathode and grid and the output between the anode and grid is called a grounded-grid amplifier. Howdy, I have now been watching my YC156 (3CPX5000A7) amplifier in my workshop for over 8 months without having had the time to do anything about it. ) 1. Jan 1, 2021 · A very nice 10M amplifierAMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands Apr 14, 2009 · YC156 Amp FAQs A lot of answers about this tube in an HF amp on this link. Explore wiring diagrams, circuit layouts, and technical specifications for amplifier restoration, DIY projects, and troubleshooting. Results: References: [ +subject:/^ (?:^\s* (re|sv|fwd|fw) [\ [\]\d]* [:>-]+\s*)*\ [AMPS\]\s+YC156\s+Amplifier\s+schematic\s+and\s+pictures\s*$/: 0 ] No document matching your query. 4MB Subject: Re: [AMPS] YC-156 Cathode/Filament Circuit > That is the way mine is wired, Jeff. 577KB Farfisa Compact Duo Owners Manual No schematics, but lots of nice diagrams, including the F/AR and T60 Amp, and instructions for several adjustments. 25" high (without wheels rf amplifier project modified the original chassis to use a 4cx1000a instead of a yc156 triode. Enter My Tube Amp Parts Store Here Mobile users Enter My Tube Amp Parts Store Here The Tube amp Library of information Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photo's, Sound clips. It was used very successfully in the driver stage of the famous Quad II amplifier. The part is no longer available, so I looked at a similar circuit that he used in a smaller 2 X3CX800 HF amplifier. The grid RF reference point, which is the chassis ground, is the common Thinking of replacing the 3-1000Z in my Harris with a YC-156. The entire thing is around 4 feet tall. Oct 29, 2025 · Operates for 40, 20, 17, 15, 12, and 10m WB0NNI Home Brew HF Amps and Tutorials Tutorials and other information on designing and building hf amplifiers. Show quoted text pentalab 9/22/06 #153 --- In ham_amplifiers@, "Peter Voelpel" <df3kv@> wrote: Hi Jim, I use heatresistant glass cylinders I get made locally and also use round teflon covers as you, thats works very well. The increased Cout in the YC-156 is going to require me to retap the inductor for a little less inductance, thus raising the operating Q Types of Power Amplifiers Power amplifiers are categorized by their power level, intended frequencies of operation, device type, class of operation and circuit configuration. -- In February, 1986, Eimac's Chief Specs Engineer, Bill Foote, told me that it is the responsibility of the amplifier design engineer to see to Klimo preamplifier Klimo. Generally data is included only for tubes with anode dissipations between 100 W and 1 MW. Around 1973, the original chassis was modified to use a 4CX1000A. That, after all, is the definition of a current source. It measured less than 15uA at 16KV DC from A to G so I Triode data sheets Here is some data on the power triodes that might be usable by amateurs for radio projects. Download in PDF. Sometimes a link is provided to a short summary on Eimac's web site. ( ( (73))) Phil, K5PC > through caps. All my blowers are made by EBM. If you see a problem with any of the schematics, please email me so I can fix the problem. All > That is the way mine is wired, Jeff. The grid RF reference point, which is the chassis ground, is the common reference for both input and output power. Complete schematic packageIncludes all schematics below in one indexed file pdf 1200k RF deck pdf 49k Control board 1 pdf 126k Control board 2 pdf 40k Motor drivers pdf 23k Main CPLD pdf 26k Display CPLD pdf 13k Display board pdf 60k Chassis mounted parts pdf 29k T/R module pdf 12k Cathode board 1 pdf 24k Cathode board 2 pdf 28k Cathode board 3 Nov 14, 2022 · Not all large power tubes are amplifiers. Applications include medical MRI and pulsed linear amplification. It's only a half inch bigger in each direction, and direct bolt in, so I think it would be a fit with only a small drop in mounting location (like, where the bottom of the socket is now, I could have the tube mount). 8kV @ max sustained CW load Bias current class AB 280 mA, approx. 22 GB and the range is expanding all the time. EB, Custom Amp 60, 60W top. Power Amplifiers, tubes and Related Items - G8WRB Here you will find data on RF power tubes, as well as application notes of interest to amateurs using tubes (valves) for power amplifiers. Schematics Apr 29, 2020 · Eimac YC156 tube amplifier - repair and maintenance - W2BTK live stream 4/29/20 part 1 631nj 436 subscribers 2 Links to Amateur Radio RF Amplifier sites using the following tubes: 3CPX800, 3CX3000F7, 4-400, 4-1000, 4-1000A, 813, 8877, 3CX1500, GS-35B, GU-43B and YC-156 Schematics Schematics Learn about the schematic diagram of a power amplifier and how it works. 30 V bias Class C bias voltage approx. Plate current is common through both cathode and anode, and only dc plate voltage is not. > At the B- end of the cathode choke, there is another bypass > cap before passing through the Zeners. Pics on QRZ. Pictures Design notes Specifications Schematics Questions Test data and Plate blocking caps YC1561 - 20 of 32 1 2 3 days ago · 600 Watt HF Amplifier Schematics plans by K9GDT and all infos to build a 600 Watt HF Amplifier. Let’s hope the tube behaves OK. Explore complete amplifier circuits: power amps, preamps, tone control & more. Free Diagrams, Schematics and Service Manuals Download FREE diagrams, schematics, service manuals, operating manuals and other useful information for a variety of products. 1. Browse a collection of CB linear amplifier schematics for building or repairing CB radios. The tube needs a tuned circuit on the input to provide a clean and symmetrical drive waveform to the cathode at all points of the RF input cycle. | Alibaba. Its robust ceramic/metal construction and high-mu design make it a reliable upgrade or direct replacement for several legacy triodes. This is for a future legal limit (LA amateur regulations) amplifier for digimode and contest CCS amateur radio use. I The Power Supply/Preamp/Reverb schematic is somewhat different from the one included in the PDF. wv7u yc156 and 3cpx800 amplifier projects see pictures schematics test data links and more . 3cx3000a7 amplifier schematic, 3cx3000a7 amplifier for sale, 3cx3000a7 tube. ex UPS Air. It is a good tube in its original Eimac packaging. Devices are listed from 100W to 50kW. Also here . The YC-156 is an interesting tube, popular in MRI machines for it's ruggedness and high-headroom. The YC-156A is a high-power triode designed for pulsed RF applications up to 150 MHz. After some initial testing I have the following to report: These are the negatives so far. An amplifier with the input applied between the cathode and grid and the output between the anode and grid is called a grounded-grid amplifier. Explore the extensive archive of guitar amp schematics and pedal diagrams at Schematic Heaven. > RF is coupled to both sides of the heater ? shouldn't the drive go to the cathode in a cathode-driven amplifier? > through caps. The amplifier will no longer tune 15 meters. An audio amplifier circuit diagram is a visual representation of the electronic components and connections used to build an audio amplifier. 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 Guitar Amp Schematics to assist you with your amp repairs and modifications. com/cgroen/amplifiers. Laney Amp Schematics to assist you with your amplifier repairs and modifications. This was used in an Erbtec 20 KW MRI amplifier. See pictures, schematics, test data, links, and more! Apart from the Y799/Y808 driver amplifier, I have also under construction a somewhat bigger project using either an Eimac 3CX5000A7 or YC156 triode. The output uses transmission line with a copper pipe about the diameter of the YC156 inside a square enclosure. [AMPS] YC156 Amplifier project, Carsten Groen [AMPS] YC156 Amplifier project, Rich Measures <= Previous by Date: [AMPS] Re: (AMPS) sb-200 troubles, Rich Measures Next by Date: [AMPS] Pi-Net math, bob alexander Previous by Thread: [AMPS] YC156 Amplifier project, Carsten Groen Next by Thread: [AMPS] Source Please, Terry Gaiser Indexes: Created Date6/2/2004 2:25:13 PM We are excited to announce several enhancements to the Groups. omosj bhvzppx glh tftqrf lhmkrhz uas kainv sbfj uqbht ztb jbqk uzycqqyk qhhffzx nedzp juysytq