Wednesday, March 23, 2016

Playing with the dip meter

Using a grid dip meter as the LO and the hearing aid amp I'm driving a ring modulator circuit as a direct conversion receiver. Picked up Cuba, Fla, and Tenn stations. (some Spanish sounding station)
4 diodes
3 transformers
3 transistor amp
dip meter
I did a followup on this with Gilbert cell instead of ring mixer. 6 transistors and two resistors = Gilbert cell.

No comments:

Post a Comment