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

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

Philco 91 Restore Code ??
#11

Thanks Mike. I at least know why it is there if I don't fully understand it. I see where you talk about a cap and resistor in series. That shows as 47 and 47a in the NA schematic (code 126-226). Parts list says the cap is .006. Anyway I think that part is sorted out.

I remember somewhere reading that the cannedohm 900 ohm (pins 1 & 2) section may be wrong and should be 9K. The person did some tinkering and settled on 5K. I remember the person said the screen grid voltage was way too high on the 44 tubes and the 2700 ohm section was running way to hot. The change bought the temp way down and bought screen grids down to reasonable level. What is your thought on that?

I still need to get my output transformer and speaker wired in and a resistor wired in to replace the field coil. What wattage would I need for the coil resistor?


Messages In This Thread
Philco 91 Restore Code ?? - by dconant - 10-12-2024, 06:45 PM
RE: Philco 91 Schematic - by RodB - 10-13-2024, 09:10 AM
RE: Philco 91 Schematic - by dconant - 10-13-2024, 09:48 AM
RE: Philco 91 Schematic - by dconant - 02-11-2025, 07:12 PM
RE: Philco 91 Schematic - by RodB - 02-11-2025, 09:36 PM
RE: Philco 91 Schematic - by dconant - 02-12-2025, 09:34 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-14-2025, 01:26 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-14-2025, 01:45 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-14-2025, 02:32 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-14-2025, 03:13 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-14-2025, 04:49 PM
RE: Philco 91 Restore Code ?? - by RodB - 02-14-2025, 05:21 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-14-2025, 05:46 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-15-2025, 01:30 PM
462ron - by 462ron - 02-16-2025, 08:49 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 09:21 AM
462ron - by 462ron - 02-16-2025, 09:39 AM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 12:55 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 01:38 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 01:44 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 02:28 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 02:32 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 02:38 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 03:53 PM
RE: Philco 91 Restore Code ?? - by radiorich - 02-16-2025, 05:04 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 05:45 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 05:52 PM
RE: Philco 91 Restore Code ?? - by RodB - 02-16-2025, 07:52 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 08:09 PM
RE: Philco 91 Restore Code ?? - by MrFixr55 - 02-16-2025, 08:35 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-17-2025, 09:15 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-18-2025, 10:47 AM
RE: Philco 91 Restore Code ?? - by RodB - 02-18-2025, 01:51 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-18-2025, 02:29 PM
RE: Philco 91 Restore Code ?? - by MrFixr55 - 02-18-2025, 03:04 PM
RE: Philco 91 Restore Code ?? - by RodB - 02-18-2025, 05:54 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-18-2025, 06:36 PM
RE: Philco 91 Restore Code ?? - by MrFixr55 - 02-18-2025, 08:09 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 09:21 AM
RE: Philco 91 Restore Code ?? - by morzh - 02-19-2025, 09:59 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 10:17 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 10:55 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 12:38 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-19-2025, 01:31 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 01:37 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-19-2025, 03:59 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 04:20 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-25-2025, 01:01 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-25-2025, 02:49 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-25-2025, 02:56 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-25-2025, 02:58 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-25-2025, 04:46 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM
Philco 42-345 Restoration/Repair
Hello Vlad95 , Very Funny ! Sincerely Richardradiorich — 11:01 PM
Philco 42-345 Restoration/Repair
RodB You are European yourself   :evil: I'm Canadian for the last 30 years  :snowman: But not Yankee  :lol: Vlad95 — 10:49 PM
Philco 42-345 Restoration/Repair
The band switch selects different oscillator coils for the band selected. I would look for a bad connection in the switc...RodB — 10:31 PM
Philco 42-345 Restoration/Repair
Hang in there...PaulPaul Philco322 — 09:30 PM
Philco 42-345 Restoration/Repair
The thrill is gone again, thought I was close to being done with it. Well Friday it was receiving broadcast, Saturday mo...osanders0311 — 07:47 PM
Help with Supreme 599
Iam getting closer to fixing it. I bumped Up the tranny voltage to get 5v on the 80 tube. I gan get the needle to move ...daveone23 — 03:41 PM
Philco 42-345 Restoration/Repair
Hello RodB, Checking my previous post I realized you're the one with the 42-340. I replaced the string for the tuning...osanders0311 — 03:12 PM

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

>