neazoi
Advanced Member level 6
Options for noiseless tuning in reflexed regeneratice receiver?
Hi, I open this thread to ask about different tuning options for my simple RX **broken link removed**
Even with this voltage controlled regeneration and frequency tuning I can still hear noise when I tune the frequency and regeneration.
I have tried pull-out alps potentiometers as well as new high quality spectroll ones. Did I have a bad luck with humitity in these or is this the case?
I have also tried these plastic tuning capacitors from old radios, which gave lower noise, but there was still a bit of noise when tuning quickly.
Other simple options for noiseless tuning?
A digital pot worked fine, but I am thinking in more simple discrete components terms.
Any ideas are welcome.
Hi, I open this thread to ask about different tuning options for my simple RX **broken link removed**
Even with this voltage controlled regeneration and frequency tuning I can still hear noise when I tune the frequency and regeneration.
I have tried pull-out alps potentiometers as well as new high quality spectroll ones. Did I have a bad luck with humitity in these or is this the case?
I have also tried these plastic tuning capacitors from old radios, which gave lower noise, but there was still a bit of noise when tuning quickly.
Other simple options for noiseless tuning?
A digital pot worked fine, but I am thinking in more simple discrete components terms.
Any ideas are welcome.