Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Straighten Tuning Capacitor Plates
#1

I purchased an early 89 chassis with speaker online and when it arrived the speaker had bounced around in the box and flattened some of the tuning capacitor plates. Can these be straightened and if so, how?
#2

Well if the damage is not too bad, try to get the capacitor fully open, and then straighten the blades one by one by hand. I sometimes use a dull knife blade as a sort of an anvil while straightening out these blades.

You should be able to slip a piece of paper between each rotor/stator gap without it getting caught.

When you are able to close and open the capacitor without any obvious binding, testing can be done
Disconnect the leads and put a VTVM across each section. As you close the capacitor, you will immediately know if a short occurs. Use the paper trick to see which plate or plates are touching, and then readjust them.

All this is a lot easier to do if you disconnect the capacitor and physically remove it from the chassis. That way you can really clean it up, re oil the bearings, etc... Take a few pictures and label everything so you will not have any problems getting it together again.

There are probably more tricks out there that others will share.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Made mistake & did not label connection
Hi John, I don't have this radio, but I can supply some info: Based on your pic, pins 7,8 and 1 are used together, go...MrFixr55 — 02:02 PM
New Philco Repair Bench
As far as I know, the Repairbench does not work, and has not been working in a while. Chuck (we had that campaign looki...morzh — 01:33 PM
Radio city products 664 schematic request
Need a schematic or manual for the 664. The 663 may be similar.daveone23 — 12:38 PM
New Philco Repair Bench
Thanks Gary.dconant — 12:16 PM
New Philco Repair Bench
I tried accessing the site through our library and got the same response. It's reported to our tech gurus. GaryGarySP — 11:50 AM
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM

[-]
Who's Online
There are currently 3992 online users. [Complete List]
» 4 Member(s) | 3988 Guest(s)
AvatarAvatarAvatarAvatar

>