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

A Philco 45 (Kirk's)
#1

I don't want to write too much.
Kirk did most of the recap.
I finished it plus the tone control rebuild.

Then there were resistors (4 altogether) out of spec badly enough.

Plus the tuning cap was propped up by pieces of wood.

Anyway, tonight I powered it and first heard nothing.
Ten minutes later I realized that the switch mounted at the back (not in the sch so I think it might be a home mod) disconnects the speaker. After that the speaker properly buzzed when grids were touched, and my local station came through.

the 6A7 is kinda weakish, as usual, but so they all, and the 75 diode-triode is very weak, both diodes do not even make it to the midle of the Red and the tiode is less than 50% of the initial value.

Tomorrow maybe will try the alignment.

PS. There is also a weird small socket at the back that connects to the last tone control cap, to the end that is switched off / on GND when the central contact touches it.
When it does it obviously is grounded.
So not sure what it is for (another home mod). Could be a headphone but it is a bad idea to do it like this.


Messages In This Thread
A Philco 45 (Kirk's) - by morzh - 07-03-2014, 08:12 PM
RE: A Philco 45 (Kirk's) - by OldRestorer - 07-04-2014, 03:56 PM
RE: A Philco 45 (Kirk's) - by morzh - 07-04-2014, 04:06 PM
RE: A Philco 45 (Kirk's) - by morzh - 07-05-2014, 08:51 PM
RE: A Philco 45 (Kirk's) - by sam - 07-05-2014, 08:55 PM
RE: A Philco 45 (Kirk's) - by morzh - 07-05-2014, 09:56 PM



Users browsing this thread:
[-]
Recent Posts
Correct model 84 Ac plug an cord type
From what I read Philco went to using brown rubber power cords in 1936, so cloth was used in the 1935 and earlier models...Arran — 11:25 PM
Correct model 84 Ac plug an cord type
Hi Bruce, I have not worked on an 84, but in general, power cords for almost any radio prior to 1938 was cloth covered...MrFixr55 — 08:34 PM
Restoring Philco 38-14
OK, well, so after staring at the sch again, I realized the problem had to be the #12/12A padder. I put a scope on the o...morzh — 08:15 PM
Correct model 84 Ac plug an cord type
Hello Bruce, I mostly use brown far as my cloth powercords go ! Here is the plug that I have used bakelite Acorn style...radiorich — 08:05 PM
Correct model 84 Ac plug an cord type
Looking for as correct as can find the right Ac plug an the correct colored cloth line. Ive seen many old photos but mos...Bruce — 04:13 PM
Restoring Philco 38-14
Rod Two Y-caps make sense if you use them from L/N to the chassis; this is only makes sense in the transformer radios...morzh — 10:11 AM
Restoring Philco 38-14
Mike, I'm curious about a specific use of he Y cap. Lately I've seen a single cap across the power transformer primary. ...RodB — 09:01 AM
Restoring Philco 38-14
hello morzh , That sounds like a plan ! Sincerely Richardradiorich — 07:45 AM
Restoring Philco 38-14
Richard, It helped some, but I still had the whining when engaging the rear power strip (I did not realize it was fro...morzh — 07:07 AM
Restoring Philco 38-14
Hello morzh, Yes , that dreaded hum in my room where i do alighment I have my cable modem and router plus desktop plus ...radiorich — 11:25 PM

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

>