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

Philco 38-690 electronics restoration.
#21

With the exception of the single electrolytic cap on the main chassis I have finished recap of it today.
Waiting for the sch to come from Chuck as I want to figure how the electrolytics are connected through the cable and to disconnect those axial electrolytics I keep for now as the place markers.

Today there was the central part, which is also the RF chassis, and it has three caps encased into a cylindrical screen, which in 2 out of 3 cases made the replacement a bit complicated.

Here is how it went.

   

This is the cap in the screen I am talking about. Nothing special: the wire soldered to the screen is easily unsoldered and the cap, after a little warming up with a heat gun to loosen the wax (6-7 seconds) is pulled out.
Then restuffed, potted and put right back. E-Z.

Now comes the second one. This is sandwiched between the two chassis plates separating the RF chassis into sections. I could not pull it out as the space is not enough.

   

Luckily, the split in the cylinder and the fact that the plates flex a little allowed me to tilt the cap at the angle enough to pull it out.

   
   

Then I put the cardboard protection disks I cut to size inside the cap after gutting it,
   

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 - 04-29-2017, 04:55 PM



Users browsing this thread: 11 Guest(s)
[-]
Recent Posts
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM

[-]
Who's Online
There are currently no members online.

>