Two Tube Superheterodyne Receiver
This was my first Superhet project. I used this in the 2008 winter 1AD Contest held annually by the Birmingham Alabama Crystal Radio Group: More info...
One Tube Direct Conversion Receiver
This project makes interesting use of the unique characteristics of a 6JH8 beam deflection tube. I used this in the Summer 2008 Homebrew DX contest: More info...
One Tube Reflexed Superheterodyne Receiver
Based on a 6ME8. Not a multi-section tube, but just a single active device that can drive a speaker on
Vintage Style 3-Tube Superheterodyne Receiver
Uses 1930’s era battery tubes
One Tube AM Broadcast Transmitter
Screen modulation with carrier control Uses a 6M11 Compactron 3-section tube
Improved One Tube AM Broadcast Transmitter
Screen modulation with carrier control Uses a 6CQ8 2-section tube
3 - Tube AM-Stereo Broadcast Transmitter
Yes, it really is possible!
No IC's; no transistors; just three tubes.
Uses two 6CQ8's and one 6HA5.
Low Parts Count Nixie Display Driver
FM Crystal Radio
A true frequency discriminator circuit
Mystery Crystal Set
An ever popular design
Tube Audio Amplifier
A low power amplifier to drive desktop speakers
General Purpose Controller For AD9850/51 DDS
Direct Digital Synthesis Frequency Generator. Direct frequency entry to 1 Hz resolution, and a sweep function: More info...
This page last updated: November 25, 2022
Copyright 2009, 2022, Robert Weaver