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

Philco 38-690 electronics restoration.
#34

Wll post some photos tomorrow.
I did the nastiest caps in the Power/Amp chassis.

First I restuffed the two backelite blocks. As in the 37-116, they had eyelets flooded with solder - no easy restuffing. I mean,  I did not spend an hour but the process was messy. In the second cap what I did, I unsoldered and unwrapped the lead wires and then after one or two suctions from the eyelets I heated them 'till the tar bubbled and filled the eyelet, then I quickly pulled the wire ip while wiggling it just a little, and so it centered with the tar around and the rest of the solder displaced.
Still too much trouble.
I do realize Philco did not have restuffing in mind but still can't see why they started flooding the eyelets.

Then came what I thought would be the worst: the tubular metall shell 1uF cap for  the tweeters.
I used cutters to start unrolling the edge, proceeding with needle nose pliers, then pulled the metal cover and used a corkscrew to extract the tarred roll. It came out very easy with no heat.
After that I put a polyester audio cap I happened to have around, which also fitted the size ideally,  inside, potted the top, put the cover back and replaced it in the chassis. Whew.

   
   
   
   

Here I put a paper circular piece to keep the molten plastic from hurting the cap.
   



Now just the conventional paper tubulars and can lytics remain; tomorrow I'll tackle those.

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.


Messages In This Thread
Philco 38-690 electronics restoration. - by morzh - 04-12-2017, 08:19 PM
RE: Philco 38-690 electronics restoration. - by morzh - 05-06-2017, 09:15 PM



Users browsing this thread: 12 Guest(s)
[-]
Recent Posts
trying to identify this wire type
Thanks to all for the feedback. As Arran said, it is probably an older replacement and yes it has a grid cap so I will ...georgetownjohn — 09:32 PM
trying to identify this wire type
It's possible that the red wire, actually a grid cap lead, is a very old replacement, I can't remember seeing a pre 1939...Arran — 09:18 PM
Gilfillan Brothers Car Radio?
Hi everyone,  Special thanks to Joe Rossi for tracking down this obscure radio and thanks to others who took up the hun...Antipodal — 08:15 PM
trying to identify this wire type
Here's one source for your wire of many. Take care and BE HEALTHY! Gary P.S. Can't get the right color you need? I ...GarySP — 06:40 PM
trying to identify this wire type
...and modern wire of the appropriate gauges and insulation V-rating (300V minimum, usually shown right on the wire) is ...morzh — 05:47 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
I have a question about this radio, is there anyone that has access to this radio that has an intact unmolested speaker ...captainclock1988 — 04:28 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Well what makes me confuse all of those companies is that all three of those companies (Setchell-Carlson, Stromberg-Carl...captainclock1988 — 04:21 PM
trying to identify this wire type
The red wire is rubber covered wire. The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM
trying to identify this wire type
Greetings Phorum members, Hope you can help me identify this type of wire in the photo I have attached.  I am not sure ...georgetownjohn — 01:53 PM
Philco 60 Squealing
All correct shields must be in place, all tubes correct no subs of any kind. Check any soldered, riveted ground conne...Chas — 01:24 PM

[-]
Who's Online
There are currently 5785 online users. [Complete List]
» 1 Member(s) | 5784 Guest(s)
Avatar

>