[QRZ] TR4 problem
 

"Boat Anchor" & Classic Equipment

///////////////////////////////////////////
TR4 problem

Posted: 30 Oct 2020 09:07 PM PDT
https://forums.qrz.com/index.php?thr...roblem.731978/



///////////////////////////////////////////
Heathkit SA-2500; auto-tuner schematic

Posted: 30 Oct 2020 05:06 PM PDT
https://forums.qrz.com/index.php?thr...ematic.732055/



///////////////////////////////////////////
Using R2001D to measure frequency

Posted: 30 Oct 2020 11:29 AM PDT
https://forums.qrz.com/index.php?thr...quency.719118/