Results tagged #Vacuum Tube in Circuits
Japanese Antique Vacuum Tube Radios
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Vacuum Tube Direct Interface
Requires that DC power be brought into the instrument, either through special cabling or an internal battery. Should not be done to collecti...
Vacuum Tube Amplifier Pioneer SM-83 Restoration
After restoring my Fisher 400, I could not let my smart head and creative hands rest. So I have started to look for another tube gear to app...
The 125 Vacuum Tube Pitch Theremin
The circuit uses AC mains voltage and otherhigh voltages that can cause injury or death. The 125 is a basic heterodyne configuration, in whi...
Altec 1566 vacuum tube mic preamp and direct box
V1 and V2 are 12AX7 dual triodes. Each half of V1 is wired as a Class A voltage amplifier in a configuration known as Common Cathode. By com...
Vacuum tube tesla coil (VTTC) using Russian GU-81m
The coil has been added a few extra turns, so I had to find a way to improve the insulation. I opted for epoxy, with some extra quantity add...
Vacuum tube tesla coil (VTTC) using Russian GI-30
A nice and compact setup, that works off-line, directly at 220V, with only a voltage doubler to get the plate voltage up to 560V DC. I don`t...
tubes williamson
A discussion of the Williamson Amplifier should be first preceded by an overview of its context in the evolution of the vacuum tube and its ...
Improved vacuum tube models for SPICE
As my principal hobby interest is now photography and I work crazy long hours at Imatest, I won`t have much time to update this article or a...
US-Army I-177-B Mutual Conductance Vacuum Tube Tester
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Flea Power Vacuum Tube Amplifier
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4 Watt Single Ended Vacuum Tube Amplifier
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Vacuum tube audio amplifier
Where can you obtain a 12AX7 tube, you ask These tubes are very popular for use in the "preamplifier" stages of many professional electric g...
Vacuum Tube Circuits
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vacuum tube
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Cymbal Vacuum Tube Push/Pull Power Amplifier 6H30 6W
The Cymbal monoblock power amplifier is a unique and modern push-pull design using ultra-linear 6H30 triodes in a zero-feedback circuit. The...
Cornet2 Vacuum Tube Moving Magnet Phonostage
This little phono stage completely trounced my sub-mini phono preamp. The phono preamp was extremely quiet with my vintage Grado 8MR cartrid...
Clarinet Vacuum Tube Linestage
The Clarinet preamplifier is agile, detailed, and warm without being euphonic. It has excellent soundstaging, tonal balance, presence, and p...
6N7 Tube QRP Power Amplifier
A Super-Duper Powerful Vacuum Tube QRP amplifier for my 800mW QRPP homebrew telegraph vacuum tube transceiver "3T" (I promise to write a sep...
MDB Ventures Vacuum Tube
This file contains information on tube transconductance. How it is computed and how it is used. It is one of the best descriptions around. I...
Vacuum Tube Synthesizers
Lately The Peasant has been building a music synthesizer using vacuum tubes. Although this will be used as a percussion synthesizer, it coul...
6V6 6J5 Class A Vacuum Tube (Valve) Amplifier Circuit
This is my first successful vacuum tube project. The output of this small amplifier in which a 6V6GT output pentode is connected as triode i...
Three ECC83-Based Tube Phono Preamplifier Circuits
The three circuits were based on the vacuum tube ECC83 designed to produce phono preamplifiers in compliance with the RIAA standards. Record...
35 Watts Vacuum Tube Power Amplifier by E80CC and EL34
The circuit was designed to create a power amplifier circuit that will utilize E80CC and EL34 vacuum tubes for better results while providin...
The EF50 the tube that helped to win the War
The history of a pioneering tube that was developed by Philips Research and that was, next to the magnetron, The most important tube from Wo...
Vacuum tube VCO
Experimenting with a vacuum tube VCO similar to the one in the link below, but with a few modifications to accommodate the parts I had on ha...
integrated vacuum tube amp
Quote: Originally Posted by rntlee The only schematic of this amp I`m aware of is this one(I got it from Song @ Canadian Hifi Online):Attach...
Amp Power Supply More Info
Vacuum tube electronic circuits operate from comparatively high DC voltages (150 to 600 volts). The Electric Utility supplies 120 volts AC. ...
cr vacuum tube detector radio
A basic detector radio set that uses a vacuum tube instead of a crystal detector. This radio requires few components, and because it`s inher...
Electronics Circuit Application: New Vacuum Tube Amplifier
The power supply has been simplified. Power transformers and rectifiers have been omitted and some parts have been omitted from the MOSFET v...
Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
This is a project that I always wanted to do, but managed to put off for a long time. It has been over a year in the doing. Partly because t...
Poddwatt: Class-A Stereo Push-Pull EL84 (6BQ5) Vacuum Tube Amplifier
This project is related to the other tube amplifier projects I have posted. It has more than a casual similarity to the first Push-Pull EL84...
DIY ECC802S (12AU7 / ECC82) Vacuum Tube SRPP Preamplifier
that used a SRPP (shunt-regulated PP) driver stage I started to do some research and modeling on a SRPP. The advantages of such a line stage...
Mullard EL34 Push-Pull Tube Amp Schematic (Dynaco A420 Transformer)
Mullard EL34 push-pull vacuum tube amplifier scheamtic using Dynaco A420 audio output transformers...
Big vacuum tube tesla coil with GU-81M
VTTC (Vacuum tube tesla coil) is a Tesla coil with vacuum tubes as a switch. I used self-oscillating circuit with two russian (soviet) tubes...
6V6 6J5 Class A Vacuum Tube (Valve) Amplifier Circuit
This is my first successful vacuum tube project. The output of this small amplifier in which a 6V6GT output pentode is connected as triode i...
LTSpice vacuum tube models
Our focus is to create place of art, audio, and video with a vintage electronics theme. The vacuum tube is the heart and soul of any vintage...
Vacuum Tube Preamplifier Analysis and SPICE Simulation
The concept of an AC model for the triode is presented and the equivalent circuit technique is described. Theoretical calculations for ampli...
Vacuum Tube 80-40M Transmitter Circuit
Using a 6BW6 vacuum tube, the above transmitter delivers about 5 W output. CI is adjusted for cleanest CW note. C8 and C9 are 365 pF and du...
CLASSIC MINIMALIST AMPLIFIER
The unit is powered directly from the 120 volt AC line, with no power transformers. Filaments are wired in series, with the total adding up ...
CLASSIC MINIMALIST AMPLIFIER
The unit is powered directly from the 120 volt AC line, with no power transformers. Filaments are wired in series, with the total adding up ...
Vacuum Tube Preamp
Figure 1 shows distortion variations in red and violet. Notice how the violet wave follows the green wave perfectly during its positive exc...
Vacuum Tube Preamp
Figure 1 shows distortion variations in red and violet. Notice how the violet wave follows the green wave perfectly during its positive exc...