Radio Theory and design

In the sim the RF is 8 uv pk-pk (output from the transformer) and the LO input is .3 volt. Q1 is AGC. At .6 volt it reduces the output. At...

Refer to the 40/80 We built the 40/80 from the ground up with a little discussion about the components as we went. The dual gate mixer and...

Look at pages 113-122. The one compactron radio using what could be called a "TV" tube. projects book

The voltage multiplier will be used to illustrate the circuit reaction to component changes. I added a 1p capacitor to see the frequenc...

I put the current mirror on a board and it does sing. (to well actually) The test board worked so well I added the jacks, switch and a vo...

RCA transmitting tubes

I put the amp on a board last night and it does sing. It needs an volume control and jacks for the I/O. It was a little unstable, when I cli...