|View single post by Itsu|
|Posted: Aug 17th, 2014 01:35 PM||
nice, i build that little circuit on a breadboard using the multi-turn pot like suggested by Jan.
Powered with a 12V battery i can hear some noises like some control or piloting signals via the grid??
When touching the germanium diode or the MOSFET drain i hear a local Dutch radio station, so shielding the whole circuit is a must.
Turning the pot does not change much in the audio.
I will try to put the circuit in a shielded box and operate it far away from the grid as it picks up lots of transients.
Video here: https://www.youtube.com/watch?v=tlehw5vLHeE&feature=youtu.be
Any luck yourselve?
Last edited on Aug 17th, 2014 01:36 PM by Itsu