On Dec 29 2009, 10:00*pm, Tim Shoppa wrote:
On Dec 29, 8:38*pm, Gene wrote:

Tim, thanks for the reply...analog...made in Canada....so i assume it
is a Philco-Ford , unable to find schematic , *will have to do some
reverse engineering to to figure out what cap , is what

Internally most of the good AM car radios I've met had mechanically
ganged slug tuning, although variable capacitor tuning existed too.

I once broadened the band of a Titan 4 reciever by
adding a varible capacitor with a spst it might need another varible
capacitor with a spdt to get the other end of the spectrum.


That's great if you're comfortable adjusting the mechanics of the
radio internally to get the tracking right. Remember, you won't be
broadening the tuning range, you'll be shifting the tuning range.

Tim N3QE