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Fred Nachbaur's AM Transmitter Circuits
Have you ever wanted to build a low-power AM transmitter, with good fidelity and stability, to let you transmit to AM radios in your house or apartment? Antique radio collectors especially will find this useful; it's quite surprising and out-of-place to hear urban rap "music" emanating from a beautiful 1930's Philco or Ze- nith! Here's your chance to experiment with several tube-based AM transmitter circuits. One of them (The "Goldberg") even sports enough output to drive a Linear for community or "p1rate" radio.
Use of these circuits is subject to the laws of your country of residence. This information is provided for educational purposes and authorized usage only.
SWTP and built-up Theremax                At this site:

The "Muntz"
- A 1-tube wonder! Surprisingly clean.
The "Bean Counter"
- 2-tube hi-fi AM transmitter
The "Gypsy"
- 3-tube tunable TX with Buffer
The "Goldberg"
- 4-tube hi-fi PA driver
An 807-based Linear
- 80 watts PEP or more


Home - Back to Fred's Vacuum


Also check out - W2ISE's Transmitter Page