Project 5 – 3 tube regen HF receiver
Well, well, here is my new project: 3 tube HF regen receiver.
The idea was to design from scratch– using parts available in my shack – a regen receiver with a good audio output that would cover the HF band by using plug-in coils.
One other goal was to use same filament voltage tubes: 6BA6 (rf and regen), 6N2P (AF pre-amp) and 6AQ5 (AF AMP) and a 300 volt B+.
I’ve spent quite a time fine tuning the design.
I think that the result is not so bad at all.
There is an extra 7 pin tube socket on the board to add an ‘rf amp’ (6BZ6).
By the way, tuning the radio, I came across the ‘QSO radio show’ at 7.415 mhz. You will hear Fred Lloyd, AA7BQ founder and editor of qrz.com.
And now let’s listen to the receiver:
Schematic will follow soon.
Placing the parts and testing tubes filament
Working on the audio section on my prototyping board
Testing AF pre-amp gain (53x)
Wiring the audio section
Working on the RF and regen section
Wiring the RF section and testing the radio