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
Philco 40-135 Output Trans Replacement
Eric
Senior Member
****
Posts: 451
Threads: 85
Joined: Nov 2011
City: Cumming, GA
#6

03-18-2015, 06:24 PM
(03-18-2015, 04:14 PM)Radioroslyn Wrote:  Hi Eric
You are measuring the DC resistance of the pri wind What is kind of important is the impedance not the resistance. Just hook it up as is. No resistor needed. Definitely replace #46( .006 connected to the plate of the 7B5 or 41) I already forgot which tube it uses. if it is shorted it will take out the op trans. Also the cap in the tone control will do the same.
Terry

I was talking about the resistance of the primary and I will not put a resistor in there. But you reference a #46 I don't see it. The tone is #32 and the caps off of 7B5 Output are 30,31 which I have replaced.
Find
« Next Oldest | Next Newest »


Messages In This Thread
Philco 40-135 Output Trans Replacement - by Eric - 03-09-2015, 04:43 PM
RE: Philco 40-135 Output Trans Replacement - by Eric - 03-18-2015, 06:24 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 42-390, code 121 speaker
>>A closer examination of the very small print schematic indicates that the speaker is a PM type. This shows a ...morzh — 05:18 PM
Philco 60 Squealing
Litz is typically tinned by simply rubbing it with the soldering iron tip while immersed in solder (and a bit of rosin f...morzh — 05:14 PM
Philco 6K7
The suppressor grid (if by G3 you mean the S) is usually at the Cathode potential, which in this caes is GND. I am not ...morzh — 05:10 PM
Philco 16B Parts
Thanks for the reply. Unfortunately the radio was removed before bidding was over so I didn't get a chance to bid.dconant — 04:10 PM
Philco 16B Parts
Hi Dan, Mike is correct, there's a lot of painted stuff on the chassis but it looks pretty good. The sm is all there,sp...Radioroslyn — 03:50 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A...captainclock1988 — 03:43 PM
Philco 42-390, code 121 speaker
Using a 5W  1.5k  ceramic resistor in place of the field coil and using a 4 ohm PM speaker, I was able to bring the radi...Stevelog — 02:57 PM
Philco 60 Squealing
I have taken out the 2nd IF and found a problem or not. I believe the coils are litz wire. There is a very small strand ...dconant — 02:13 PM
Philco 6K7
I am restoring a Philco 37-60. The am reception is very good, but the shortwave is very weak. Run 6 Philco removes the g...bobbyd1200 — 01:35 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A5...MrFixr55 — 06:48 AM

[-]
Who's Online
There are currently 4352 online users. [Complete List]
» 4 Member(s) | 4348 Guest(s)
AvatarAvatarAvatarAvatar

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