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

Philco 90 1-47 Triode
#21

MrFixr55

Thanks for the list. Im sure the order of operations will come in handy. I kinda saw already that you have to heat those Bakelite boxes and push out the old caps. All of the caps, Bakelite and filters will be restaffed in original housings. Lotsa work ahead for sure.

I have also noted the main ganged tuning cap is loose. Looks like some kinda gromets are toast too.

However I have a few questions.

1) The coils that go open. I assume its just the outer coil that goes? Have you got a link to rewinding info?

2) Do the transformers go? Someone said the Philco transformers are pretty tough and rarely go. Its that the case?

3) You say replace all caps. does that include the 110pF ones? Are they mica? In communications received they seldom go.

4) how fussy is this unit for tolerances? If I replace a 51K resistor with a 50K or 110pF with 100, is it going to cause issues or is it pretty broadly tolerant?

Cheers

Current Restorations In Process
RME DB22A - Lafayette KT200 - Hammerlund HQ 140 XA
Johnson Viking II - Viking VFO 122 - Johnson Ranger
Philco Model 90 Low Boy

I got stuff.... and things.... and I never said I could spell!


Messages In This Thread
Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 05:02 PM
RE: Philco 90 1-47 Triode - by morzh - 06-25-2023, 07:10 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 07:18 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 08:28 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-25-2023, 08:43 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-25-2023, 09:06 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 09:07 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 09:11 PM
RE: Philco 90 1-47 Triode - by morzh - 06-25-2023, 09:31 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 09:33 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-25-2023, 09:45 PM
RE: Philco 90 1-47 Triode - by DaleHCook - 06-25-2023, 09:50 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-25-2023, 09:59 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 10:04 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-25-2023, 10:12 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 10:18 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-25-2023, 10:22 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 10:25 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-26-2023, 08:31 AM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-26-2023, 11:32 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-26-2023, 03:15 PM
RE: Philco 90 1-47 Triode - by morzh - 06-26-2023, 06:46 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-26-2023, 07:23 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-26-2023, 08:28 PM
RE: Philco 90 1-47 Triode - by GarySP - 06-26-2023, 08:59 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-26-2023, 09:16 PM
RE: Philco 90 1-47 Triode - by RodB - 06-26-2023, 11:08 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-27-2023, 07:26 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 08:35 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 10:18 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 10:51 AM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 11:02 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 11:05 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 11:06 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 11:30 AM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 11:34 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 11:42 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 11:44 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 11:54 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 12:03 PM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 12:10 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 01:07 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 01:11 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 01:22 PM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 01:23 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 01:27 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 01:34 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 01:34 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 01:37 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 01:39 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 01:53 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-27-2023, 02:07 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 02:13 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-27-2023, 02:42 PM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 02:43 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 08:10 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-28-2023, 07:07 AM
RE: Philco 90 1-47 Triode - by morzh - 06-28-2023, 10:33 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-28-2023, 10:44 AM
RE: Philco 90 1-47 Triode - by morzh - 06-28-2023, 12:55 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-28-2023, 05:12 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-29-2023, 08:24 AM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-29-2023, 06:02 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-21-2023, 11:40 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-22-2023, 12:34 AM
RE: Philco 90 1-47 Triode - by RodB - 12-22-2023, 10:50 AM
RE: Philco 90 1-47 Triode - by GarySP - 12-22-2023, 11:04 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-22-2023, 11:08 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-22-2023, 11:10 AM
RE: Philco 90 1-47 Triode - by morzh - 12-22-2023, 11:28 AM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-22-2023, 01:31 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-22-2023, 01:55 PM
RE: Philco 90 1-47 Triode - by RodB - 12-22-2023, 07:20 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-24-2023, 06:35 PM
RE: Philco 90 1-47 Triode - by RodB - 12-24-2023, 09:56 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-24-2023, 11:32 PM



Users browsing this thread: 6 Guest(s)
[-]
Recent Posts
Shadow Meter Bulb
Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM
Philco 41-608 changer coupler
3D-printing...short of machining, of course. Or molding.morzh — 05:20 PM
Philco 41-608 changer coupler
Thanks, Morzh. That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM

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

>