12-10-2018, 04:16 PM
Thanks for your replies, you're keeping me going.
I'm sorry the after pic didn't show the third electrlytic in bottom right corner, so nothing seems wrong there, it's two 10 mf and a 22 in place of two 8's and a 16.
Checked all caps for capacity and place in the circuit against the schematic, all good. Started checking the cap values, good those that I checked (ya have to disconnect an end to check em).
I get an AF signal loud and clear from the 2nd IF transformet on.
Couple of odd things, I can connect the sig gen to the antenna wire and get a faint signal through overwhelmed by the hum/buzz. The antenna var. cap is grounded on both sides. So the antenna wire has continuity with the chassis. Seems to ground somewhere in the push button band switch mechanism. Looked around in there but it's tight and involved disconnecting a lot, still don't understand that switch well. I keep thinking that somethings grounded that shouldn't be.
I've gotta figure this one out, my neighbor gifted me the radio and I can't tell him this is how it ended.
Thanks everyone,
Alan
I'm sorry the after pic didn't show the third electrlytic in bottom right corner, so nothing seems wrong there, it's two 10 mf and a 22 in place of two 8's and a 16.
Checked all caps for capacity and place in the circuit against the schematic, all good. Started checking the cap values, good those that I checked (ya have to disconnect an end to check em).
I get an AF signal loud and clear from the 2nd IF transformet on.
Couple of odd things, I can connect the sig gen to the antenna wire and get a faint signal through overwhelmed by the hum/buzz. The antenna var. cap is grounded on both sides. So the antenna wire has continuity with the chassis. Seems to ground somewhere in the push button band switch mechanism. Looked around in there but it's tight and involved disconnecting a lot, still don't understand that switch well. I keep thinking that somethings grounded that shouldn't be.
I've gotta figure this one out, my neighbor gifted me the radio and I can't tell him this is how it ended.
Thanks everyone,
Alan
