Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
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, 09:12 PM
RE: A Philco 45 (Kirk's) - by OldRestorer - 07-04-2014, 04:56 PM
RE: A Philco 45 (Kirk's) - by morzh - 07-04-2014, 05:06 PM
RE: A Philco 45 (Kirk's) - by morzh - 07-05-2014, 09:51 PM
RE: A Philco 45 (Kirk's) - by sam - 07-05-2014, 09:55 PM
RE: A Philco 45 (Kirk's) - by morzh - 07-05-2014, 10:56 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 91 Restore Code ??
Well, this cap you showed cannot possibly, due to the way it is constructed, be 1000pF (0.001). It can be in tens of pF....morzh — 03:13 PM
Philco 91 Restore Code ??
I have two schematics for this radio one shows the 47 block (126-226) and the other (121-221) does not. My radio does no...dconant — 02:32 PM
Philco 91 Restore Code ??
No, that cannot be the 47. The 47 is a regular backelite block cap. Look at the chassis picture, it is shown there. Rig...morzh — 01:45 PM
Philco 91 Restore Code ??
I have changed the title of this thread from Philco 91 Schematic. I have gone through most of the cap replacements. I...dconant — 01:26 PM
462ron
Here is an online transistor substitution site… Ron462ron — 08:44 AM
1930s Stewart-Warner Tombstone Radio need help identifying model number
One way to repair a broken wire on a coil is to take a copper strand out of some 18 gauge electrical cord, make a &quo...captainclock1988 — 12:55 AM
B&K 1077B no video
Hello Tim, I once had a Jcpenny 13inch tv /monitor built by NEC come into my repairshop it would start acting up at tim...radiorich — 10:59 PM
Restoring Philco 96
Mike; The last time I took a potted condenser can apart, and it was maybe 1/4 the size of the one in the model 96, I ...Arran — 10:56 PM
Compatible crts
Bob Andersen — 08:58 PM
1930s Stewart-Warner Tombstone Radio need help identifying model number
One way to repair a broken wire on a coil is to take a copper strand out of some 18 gauge electrical cord, make a "...Arran — 08:41 PM

[-]
Who's Online
There are currently 2375 online users. [Complete List]
» 3 Member(s) | 2372 Guest(s)
AvatarAvatarAvatar

>