Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

Philco 620 restoration
#5

Another thing: clean all the switches with contact cleaner and work them back and forth while the cleaner is still wet. I do the same with tube sockets.

I don't clean the potentiometers. I've had mixed results. Sometimes it washes all the lubricant out of the pot. Then it doesn't work right and feels rough, so I don't do it on the antique pots.

If pots are noisy I just run them back and forth quite a few times to wear the oxide off the metal wipers. That will quiet them for a while, but it is only temporary, I've found.

I also clean the outside of the chassis with 0000 steel wool and sometimes a damp rag. I don't go overboard with polishing. Philco chasses weren't intended to be works of art like some of the fancier radios.

Keep the steel wool away from the tuning capacitors, though, and wipe or blow the steel wool dust away carefully.

John Honeycutt


Messages In This Thread
Philco 620 restoration - by David B - 01-21-2008, 08:55 PM
What constitutes a "restoration" - by AI2V - 01-22-2008, 12:41 PM
Philco 620 - by David B - 01-22-2008, 09:17 PM
[No subject] - by Raleigh - 01-22-2008, 11:16 PM
[No subject] - by Raleigh - 01-22-2008, 11:31 PM
[No subject] - by gary rabbitt - 01-23-2008, 12:12 AM
Resistors next - by AI2V - 01-23-2008, 10:18 AM
[No subject] - by gary rabbitt - 01-23-2008, 05:36 PM
Philco 620 - by David B - 01-27-2008, 02:04 AM
[No subject] - by Guest - 02-28-2008, 06:55 PM
[No subject] - by Texasrocker - 02-29-2008, 02:03 AM
[No subject] - by gary rabbitt - 02-29-2008, 04:53 AM
[No subject] - by Ron Ramirez - 02-29-2008, 10:17 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Zenith H725
David - I think I understand but what units are you discussing (Low of 1.7, high of 3.9)? Budget constraints for Ham ...EdHolland — 01:43 PM
My Philco 37-116 Restore
You're doing great. I wish I could be more involved, but my mind is right now preoccupied with the reason I am here in ...morzh — 12:21 PM
My Philco 37-116 Restore
Hope you guys are still with me. I have moved on to the alignment. I completed the IF alignment which was pretty muc...dconant — 10:47 AM
My Philco 37-116 Restore
Hello MrFixr55, Thank you for taking the time to explain. I measured 50 volts where you say. Today the 370 volts at ...dconant — 12:51 PM
462ron
Oh that sucks. It’s something easily overlooked. Hopefully it’s nothing more than a resistor! Ron462ron — 08:08 AM
Philco 46-480 Electronic Restoration
Just confirmed that you are correct. It’s the function generator. I connected the signal output probe to one of the inpu...jrblasde — 07:52 AM
Philco 46-480 Electronic Restoration
Ouch, you may be right. Yes, it is solid state. It’s the signal output of my oscilloscope. May be time to crack that ...jrblasde — 07:27 AM
462ron
If you didn’t put a DC blocking cap between the signal generator probe and the plate of the 1st IF it’s possible you ble...462ron — 07:07 AM
My Philco 37-116 Restore
Hi DConnant, The reason why C127 is isolated from ground is because sets of this vintage did not have the center tap...MrFixr55 — 01:07 AM
Philco 46-480 Electronic Restoration
The shield is on the 6H6. It was, in fact, a missing jumper to connect the main chassis ground to the RF chassis grou...jrblasde — 10:58 PM

[-]
Who's Online
There are currently 1041 online users. [Complete List]
» 1 Member(s) | 1040 Guest(s)
Avatar

>