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

A Philco 91 restore
#24

Good progress over the last few days.  All recapped and several of the dogbones replaced.  I did add an inline 1.5 amp fuse to the hot side of the line and repro power cord and polarized plug.  Here's the underside ready to go.

[Image: https://www.dropbox.com/s/7d91bl84f4wkox....jpg?raw=1]

I put the tubes back in and powered it up.  The filaments all came on except I could not see anything in the 80 tube.  No sound at all in the speaker.  Did I forget to check the power tranny before I started?  Secondary across the two 80 plates looked ok as did the secondary on the 80 filaments.  Checking the primary at the power plug blades I was getting fluctuating readings ranging from .5 meg on down to a few k so I unsoldered one of the primary leads to the on-off switch and measured the primary directly.  Looks ok at a few ohms so the problem has to be in the on-off switch or my solder joint....it was my solder joint.  Resoldered the tranny lead and fired it back up to the sounds of my SSTRAN station.  The shadow tuning even works although I think I can adjust it to be a bit brighter.  Can't believe it but there is still one of Philco's special straight filament light bulbs on the shadow graph.  

[Image: https://www.dropbox.com/s/ly1bdd52ereyye....jpg?raw=1]

I still need to do some chassis cleanup, the tuning cap is pretty dirty and the dial scale needs to be replaced.  The volume control pot was a bit scratchy.  I'll also check alignment but it seems to be pretty good.  The tube shield has some surface rust I need to take care of but I'm happy its playing with no major problems.  The cabinet work is under way but that's another story...


Messages In This Thread
A Philco 91 restore - by klondike98 - 01-10-2017, 02:36 PM
RE: A Philco 91 restore - by sam - 01-10-2017, 02:57 PM
RE: A Philco 91 restore - by morzh - 01-10-2017, 03:09 PM
RE: A Philco 91 restore - by klondike98 - 01-10-2017, 03:48 PM
RE: A Philco 91 restore - by morzh - 01-10-2017, 04:49 PM
RE: A Philco 91 restore - by Radioroslyn - 01-11-2017, 12:55 AM
RE: A Philco 91 restore - by klondike98 - 01-11-2017, 09:08 AM
RE: A Philco 91 restore - by morzh - 01-11-2017, 01:20 PM
RE: A Philco 91 restore - by Ron Ramirez - 01-11-2017, 01:21 PM
RE: A Philco 91 restore - by morzh - 01-11-2017, 01:25 PM
RE: A Philco 91 restore - by klondike98 - 01-11-2017, 05:55 PM
RE: A Philco 91 restore - by Nathan Slingerland - 01-11-2017, 06:14 PM
RE: A Philco 91 restore - by klondike98 - 01-11-2017, 06:16 PM
RE: A Philco 91 restore - by klondike98 - 01-12-2017, 01:11 PM
RE: A Philco 91 restore - by Ron Ramirez - 01-12-2017, 01:20 PM
RE: A Philco 91 restore - by Radioroslyn - 01-12-2017, 01:45 PM
RE: A Philco 91 restore - by klondike98 - 01-12-2017, 02:12 PM
RE: A Philco 91 restore - by Mondial - 01-12-2017, 06:18 PM
RE: A Philco 91 restore - by klondike98 - 01-12-2017, 08:42 PM
RE: A Philco 91 restore - by klondike98 - 11-13-2017, 05:09 PM
RE: A Philco 91 restore - by Steve Davis - 11-13-2017, 05:56 PM
RE: A Philco 91 restore - by Radioroslyn - 11-13-2017, 07:04 PM
RE: A Philco 91 restore - by klondike98 - 11-13-2017, 08:12 PM
RE: A Philco 91 restore - by klondike98 - 11-16-2017, 04:15 PM
RE: A Philco 91 restore - by klondike98 - 11-09-2018, 05:02 PM
RE: A Philco 91 restore - by klondike98 - 11-11-2018, 06:50 PM
RE: A Philco 91 restore - by Ron Ramirez - 11-12-2018, 12:23 AM
RE: A Philco 91 restore - by klondike98 - 11-12-2018, 08:35 AM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 91 code 221
Dirty tube pins and socket, cold solder joint, stray tiny strand of wire, clean the entire area around the oscillator tu...RodB — 08:43 PM
Philco 91 code 221
I have been restoring one of these sets and switched it on yesterday. It didn't exactly spring into life, but after a co...Philconut — 08:26 PM
Philco 50-925 antenna connections
That's super. Glad to hear you figured it out. Paul.Paul Philco322 — 11:11 AM
Philco 50-925 antenna connections
Hello Keith, great news !! Sincerely Richardradiorich — 02:14 AM
Philco 50-925 antenna connections
Finally, got the antenna fixed (repaired some broken wires) and have the radio playing. I've got four different schemat...keith49vj3 — 09:38 PM
1949 Motorola 5A9M
Bob, Nice radio.  I’ve not seen one before.  Keep us updated!Joe Rossi — 07:56 PM
Phioco 90 Power Transformer Wire Colors
Thanks for adding that information.klondike98 — 06:09 PM
Phioco 90 Power Transformer Wire Colors
Although I have used this site as a resource for a number of years this is my first post.   I am restoring a Model 90 si...vincer — 05:02 PM
My collection presentation
There is a complete instruction how to solve your problem. One piece of advice - be careful with the low-voltage capacit...Vlad95 — 09:32 AM
My collection presentation
Vlad; I thought your brown RCA portable looked familiar, I have one that is very similar, the RCA-Victor model BX-55....Arran — 02:31 AM

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

>