05-07-2006, 02:38 AM
![Icon_confused Icon_confused](https://philcoradio.com/phorum/images/smilies/icon_confused.gif)
37-650 Tuning Capacitors
05-07-2006, 02:38 AM
![]()
05-23-2006, 04:59 PM
Is the wire connected at both ends? If not-
In some cases a neutalizing/feedback wire is used on top of tuning caps to kill unwanted oscillation especially at the high freqs; the wire is actually a capacitor and changing it's position will often help. Usually it runs from the stator of one tuning cap to somewhere near the stator of the adjoining cap. When I have particularly nasty high-end problem with a radio, this is a solution that I sometimes use. I don't know if this is what you are describing, but I thought I would suggest a purpose for your extra wire- maybe a tech put it there years ago. Pete AI2V
05-24-2006, 01:56 AM
Pete, thanks for the reply. I examined this further and as far as I can determine the wires are not resistive. The single terminal board on the bottom and top of the condensor are isolated from it. It seems that this was done for production line purposes. The leads from the band switch come out of the chassis and immediately are connected to the bottom terminal, then the grid cap wires are attached to the top terminals. I'm guessing that shielded wire would have been to expensive and by having that wire between the terminals (it's straight as an arrow and taut) placed there by the manufacturer of the tuning cap provided the shortest distance between the two points. If anyone else has any ideas please join in. Pat
« Next Oldest | Next Newest »
Users browsing this thread: 1 Guest(s) |
![]() |
![]() |