Simple micro transmitter

[Murphyv310]

Trev, how did you achieve auto regen with the regen you built?

Lawrence.

Hi Lawrence.
That was found purely by luck!!! I'd built up a little reaction set on veroboard using 1 1j18b it worked well but I found that reducing the HT it would never go into full oscillation, it was always on the edge which is ideal, later I fiddled around with the circuit and got useful improvements by re-flexing it too, the set used a normal ferrite rod coil with an extra 20 turns wound round the "earthy" end of the coil for the reaction winding. It drove a set of high impedance phones at good volume on locals and even pulled in a few foreigners at night.
I've still got it here, no doubt the circuit is on the PC somewhere.