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

Model 87 Audio input xformer and output xformer to 45 tubes
#1

Does anyone know the impedances of these transformers or a way to calculate it from a tube manual ? I see many transformers available and might work but they are too expensive to play hit and miss.

Thanks
Jim
#2

Hi Jim,
If it is the trans #25 connecting between the first AF 226 and the second AF 245's you can use the Hammond HX124A from Radio Daze. I used it on mine and it works great. Hope this helps,
Richard
#3

Richard:
Thank You ! Half my battle is over. That was exactly the transformer I was considering but unsure until you verified it.
Now I am chasing down tou output transformer from the plates of the 45's to the speaker. One side of the primary is open. I was considering the Hamond P-T1615.


Jim
#4

Jim, You are talking about the trans on the speaker #36. If so check all the connections. I had one that had the same problem. I checked and found a bad solder connection at the trans side of the cable. I cleaned and re soldered and it worked fine. If not, I will try to get the resistance of the trans for you to match.
Richard




Users browsing this thread:
[-]
Recent Posts
6TPZ and 5TPO Radio Help
Welcome to the Phorum, R3Sons! I have very limited experience with car radios other than installing custom radios back ...GarySP — 01:08 PM
462ron
OK, I need to rename this thread to say..Eico 368 TV/FM Sweep Generator instead of the current title..Heathkit Sweep Gen...462ron — 12:49 PM
6TPZ and 5TPO Radio Help
Hello, I have a Philco (Ford) 6TPZ and a 5TPO radio.  I replaced the electrolytic capacitors in both.  I have the SAMS m...R3Sons — 12:29 PM
The list of my radio & TV collection!
Hello Peter, Thank you for posting that !! Sincerely Richardradiorich — 09:40 AM
Eico 232 VTVM Schematic
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM
Eico 232 VTVM Schematic
Try BAMA for a schematic. Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM
Eico 232 VTVM Schematic
Is that a battery holder?morzh — 04:43 PM
Eico 232 VTVM Schematic
A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM
Var resistor id
Considering what it is in series with, I doubt there should be any power requirements. Of course, we should know wher...morzh — 03:23 PM
Var resistor id
Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms. This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM

[-]
Who's Online
There are currently 3269 online users. [Complete List]
» 1 Member(s) | 3268 Guest(s)
Avatar

>