12-07-2017, 11:49 AM
I (turning my nose up) happen to have a very good ear. 
There will be things in this radio I will probably won't be fixing all the way, including that police band antenna coil. This will require too much an effort for to little gain.
I wish I could improve the band switch performance too, the BC band antenna coil secondary contact is iffy. I probably spent half a can of Red DeOxit. All the bands are fine except this one. It has improved but not 100% reliable. And taking the switch out is out of the question.
It is where the grid of 6U7G RF Amp connects to B9 pin of the switch and then the switch makes to the B8. The B8 is the one that does not reliably make. And it is inaccessible. I was able to direct the straw of the sprayer directly to that hole in the wafer at B8 where I can see contact and spray some Deoxit right there. After that it sometimes work but sometimes it goes to 20-30-100 Ohm resistance.
Not sure what to do, maybe you know some tricks......
There will be things in this radio I will probably won't be fixing all the way, including that police band antenna coil. This will require too much an effort for to little gain.
I wish I could improve the band switch performance too, the BC band antenna coil secondary contact is iffy. I probably spent half a can of Red DeOxit. All the bands are fine except this one. It has improved but not 100% reliable. And taking the switch out is out of the question.
It is where the grid of 6U7G RF Amp connects to B9 pin of the switch and then the switch makes to the B8. The B8 is the one that does not reliably make. And it is inaccessible. I was able to direct the straw of the sprayer directly to that hole in the wafer at B8 where I can see contact and spray some Deoxit right there. After that it sometimes work but sometimes it goes to 20-30-100 Ohm resistance.
Not sure what to do, maybe you know some tricks......
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
