Tubes are a dying technology. All modern transmitters, even high power ones, do work with transistors and other semiconductors. But many fondly remember their first homebrew …
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Design of Ham Vacuum Tube Transmitters - w8ji.com
The vacuum tube "pulls" on the high voltage like a variable resistor. The path for that "pull" is from cathode to anode, the grids just control the instantaneous resistance of that path. You can read more about how a tube (or transistor) …
Seeking help, regarding the VFO part of the vacuum tube transmitter
Jan 20, 2025 · It uses two vacuum tubes, 6J5 vacuum tubes for VFO and 6P15 vacuum tubes for power amplification. It can work stably after assembly.I deleted the 22uh inductor and 100pf …
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Tube Transmitters/Receivers - ARRL
Many hams fondly remember their first homebrew transmitter--it is hard to forget the warm glow of a vacuum tube. With the availability of New Old Stock (NOS), it is quite practical for hams to …
This little gem has a maximum input of 10-12 watts so will typically produce around 4 or five watts of output – a vacuum tube QRP transmitter! If you have worked mine (which is set up for 4 …
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performance, but rather for their sound and appearance. Vacuum tube transmitters, especially ones from the 1930’s or 40’s, don’t have impressive performance, but their visuals are great! …
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Transmitters back then had great big coils, “bread slicer” variable capacitors, and wondrous glass vacuum tubes. Their plate current and grid drive meters look as though they belong in a power …
Vacuum Tubes Radio Tubes - 5,000 different tubes in stock - Over …
Whether you need vacuum tubes for industry, hi-fi applications, ham radio, old time radio, or any other purpose, we will be the only supplier you will ever need. We keep both NOS (New Old …
Tubes and Valves
Sep 4, 2021 · These pages cover simple vacuum tube Transmitters that graced many shacks during the 1930-1960's. Simple they may be; but they are fully capable of communicating over …
Rebuilt Vacuum Tubes: Rebuilt Oscillator Tubes, Induction Power …
Kennetron rebuilds vacuum tubes, oscillator tubes, power grid tubes, and electron valves used in industrial and broadcast applications. These tubes are used in induction heating equipment, …
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