1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
48-200 code121 Filament Wiring incorrect
Welder
Junior Member
**
Posts: 41
Threads: 3
Joined: Jan 2017
City: East Brunswick, NJ
#11

11-20-2017, 11:55 PM
The electrolytic caps (3) all check out okay but bulbs continue to blow past 30 volts on the variac.  I have one pos + from the electrolytic that I desoldered and of course can't remember where it belongs on the rectifier.  I'm recording everything I do now.  I'm new at this and find it's very easy to get confused! I can't raise the voltage enough to get the filaments to light. Something is amiss but I'll read the sch. and go from there.  Any suggestions would be apprecated. Just a note, Icon_clap Icon_clap  I replaced the 30, 25 & 20 Microfarad 3 lead cap with three (3)  33uf caps which was all I had at the time. I've ordered the correct caps from Just Radios.

Thanks, 






Rich
Find
« Next Oldest | Next Newest »


Messages In This Thread
RE: 48-200 code121 Filament Wiring incorrect - by Welder - 11-20-2017, 11:55 PM



Users browsing this thread: 3 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.

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration