Posts: 239
Threads: 10
Joined: Dec 2013
City: Columbia, SC
Alright, a bit of an update. I rewound both of the coils today, baked the forms and coated with lacquer. Everything is reinstalled and wired back, and after a quick run through of my connections, I powered it up with a 25 watt bulb and the 80, 75 and 42 tubes, which yields about 80ish volts. I immediately got a hum out of the speaker, and a 20ma draw on B+ into the field coil. Touching the cap of the 75 created pops and buzzes, so the audio section appears to be working fine. I'm taking that as a great victory; at least I haven't wired anything on the high voltage side egregiously wrong.  And half the tubes are good so far.
After an unfortunate homework break tonight,  I'll put the rest together and try to pick up a real signal. Thanks again for everyone's help!
Will
Messages In This Thread
RE: Model 89 Cathedral - by skyscraper - 02-06-2014, 10:50 PM
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
PT 6 chassis screws size???
|
Hello bridKarl,
that sounds right or maybe 8/32 .
Sincerely Richardradiorich — 01:00 AM |
PT 6 chassis screws size???
|
Have this done except for missing chassis screws.
It looks like 1 inch 6/32 sheet metal screw may work but can anyone s...bridkarl — 10:32 PM |
Philco model 38 code 121 not receiving signal.
|
Hello Stormlord,
Well done on rewinding that coil it turned fairly good for your first one.
Sincerely Richardradiorich — 09:12 PM |
Philco model 38 code 121 not receiving signal.
|
Well here it is. It ain't pretty, but hopefully it'll work.
I checked it with my DMM on continuity and it keeps and r...Stormlord5500 — 08:56 PM |
Philco 42-345 Restoration/Repair
|
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM |
Philco 42-345 Restoration/Repair
|
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM |
Philco model 38 code 121 not receiving signal.
|
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM |
Testing a speaker and output transformer Trutone A2-G
|
The equivalent of one short turn is basically the same as that of a shorted load.
If it is the primary's turn, then the ...morzh — 03:53 PM |
Testing a speaker and output transformer Trutone A2-G
|
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM |
Philco model 38 code 121 not receiving signal.
|
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM |
Who's Online
|
There are currently no members online. |
|

|