Philco 90 1-47 Triode

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

Linear Mode

Philco 90 1-47 Triode

Mike_RF
Junior Member

Posts: 34
Threads: 2
Joined: Jun 2023
City: Round Lake Centre ON CA State, Province, Country: Canada

06-25-2023, 08:28 PM

Ok

I think I stand corrected.

I think the output transformer is ok. On the primary side i have 450 and on the secondary side I have 0.3.

I was expecting that the field coil was installed and working when it was not.

So, that brings two questions.

1) Can I put my old single end transformer on the new speaker? Remove the push pull transformer and install the single ended one? I think the voice and field coils are the same. Hence i think i can swap the transformer and be happy.

2) The main unit needs to be gone thru. No ifs and or buts. Re cap. New resistors. Check tubes etc. But my question is, what causes these field coils to burn out or go open? Would it be bad filter caps? A bad tube? A short to ground? Something caused the field coil to go open on this unit. Need to be on guard and make sure it gets resolved.

Cheers and Thanks Kindly!!

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!

(This post was last modified: 06-25-2023, 08:29 PM by Mike_RF.)

Find

« Next Oldest | Next Newest »

Thread Closed

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

View a Printable Version

Users browsing this thread: 9 Guest(s)

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 8736 online users. [Complete List]
» 3 Member(s) | 8733 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me