03-24-2020, 10:25 PM
Hi,
I pulled out the Philco 39-31 code 121 to finally take a shot at doing the alignment. I am a beginner when it comes to vintage radio alignment so please be patient with me.
On step #1 it says to connect through a .1uf to the grid of 6A8G at a freq. of 470 kc (radio on 580 KC). I am assuming that is pin 5 ? or should I attach to the cap of the tube?
On step 3 it says to attach through a 100 mmf 1550 KC (Radio on 1550 KC) and adjust # 5 and # 4A . (4A is the trimmer capacitor on the tuning capacitor.) When I try to adjust #4A absolutely nothing happens. ???????
Any help is greatly appreciated.
I pulled out the Philco 39-31 code 121 to finally take a shot at doing the alignment. I am a beginner when it comes to vintage radio alignment so please be patient with me.
On step #1 it says to connect through a .1uf to the grid of 6A8G at a freq. of 470 kc (radio on 580 KC). I am assuming that is pin 5 ? or should I attach to the cap of the tube?
On step 3 it says to attach through a 100 mmf 1550 KC (Radio on 1550 KC) and adjust # 5 and # 4A . (4A is the trimmer capacitor on the tuning capacitor.) When I try to adjust #4A absolutely nothing happens. ???????
Any help is greatly appreciated.
