A website devoted to electronic thermionic devices known as 'tubes' or 'valves'. Includes information on a homebrew 1.8 MHz transmitter. By Andrew Burge in England.

W6FFC discusses stability considerations and other factors.

Contains transformer and tube data.

N6HB Amateur Radio -- the early years. Includes pictures of homebrew rig and Lafayette HA-700 receiver plus another transmitter.

Hammarlund, Collins and vintage AM gear. Also, a homebrew 75m AM transceiver.

Schematic and instructions on a neat little 6AQ5 final rig you could build.

Articles, and schematics about Glowbugs. Relates to constructing tube-type, low power amateur radio equipment.

Tools for homebrewers, including chassis punches.

For radio enthusiasts interested in building and using the popular 1950s-60s era HBR receivers. Repair information for Heathkit SB-104, SB-101, and HW-101 Transceivers.

Turn old power transformers into modulation transformers. Technical article by WA1HLR from The AM Press Exchange.