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

Philco 90 Lowboy
#1
Photo 

This Philco just came to me this morning.
I don't post very often, mostly lurking in the background reading all the posts and trying to learn as much as I can.  This is a mid production model 90, I am guessing, as it has the single 47 pentode output. I am not planning on working on this until this winter, sometime. (Have several others in the queue ahead of it.)
What should I be looking out for on this model? Is this one of the models that tend to have open RF or IF transformers?  It does have AF output, picking up strong stations when touching the grid of one of the 24s. (Not sure which one. The PO had been using it this way, against my advise not to use it until it had been properly gone thru.)  The speaker cone looks very brittle and bleached. Like it had been exposed to sun light. The cabinet finish has had something done to it, but it doesn't look too bad.

In the mean time, I will start gathering up capacitors and etc. to dig into it later. Thanks for any insights, advise, or help.

Chris,
N9WHH

Chris H
N9WHH


Messages In This Thread
Philco 90 Lowboy - by Chris h - 08-20-2016, 08:23 PM
RE: Philco 90 Lowboy - by markmokris - 08-22-2016, 10:29 AM
RE: Philco 90 Lowboy - by morzh - 08-22-2016, 11:26 PM
RE: Philco 90 Lowboy - by Chris h - 08-23-2016, 08:19 AM
RE: Philco 90 Lowboy - by Radioroslyn - 08-23-2016, 12:27 PM
RE: Philco 90 Lowboy - by Chris h - 08-23-2016, 01:21 PM
RE: Philco 90 Lowboy - by Chris h - 12-14-2016, 01:13 AM
RE: Philco 90 Lowboy - by Chris h - 12-20-2016, 11:00 PM
RE: Philco 90 Lowboy - by morzh - 12-21-2016, 12:40 AM
RE: Philco 90 Lowboy - by Ron Ramirez - 12-21-2016, 12:59 PM
RE: Philco 90 Lowboy - by morzh - 12-21-2016, 02:12 PM
RE: Philco 90 Lowboy - by Chris h - 12-21-2016, 11:21 PM
RE: Philco 90 Lowboy - by morzh - 12-21-2016, 11:29 PM
RE: Philco 90 Lowboy - by Ron Ramirez - 12-22-2016, 07:05 AM
RE: Philco 90 Lowboy - by Chris h - 12-27-2016, 10:58 AM
RE: Philco 90 Lowboy - by Chris h - 12-31-2016, 01:47 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Rogers Majestic R-646
Kinda weird to see both open Nothing weird if you remember that this radio is about 100 years old  :)Vlad95 — 07:49 PM
Philco 42-345 Restoration/Repair
I believe I'm making progress, resistors have been rechecked and corrected, removed that ugly blue capacitor and more wi...osanders0311 — 07:38 PM
Philco Model 16 wiring question
Thanks Morzh Yes I recapped everything and replaced almost all the resistors as well. I redid #99 with .015 safety ca...bobclausen — 07:11 PM
Philco Model 16 wiring question
Well...pull out every single load of the transformer. For every winding. Unsolder if needed. Then re-do your dim bulb....morzh — 07:02 PM
Rogers Majestic R-646
Kinda weird to see both open, but once you get it up and running, really pay attention to your sound. Listen for loud cr...TV MAN — 06:59 PM
Rogers Majestic R-646
Vlad; I was just reminded of something else, I'm not sure why but many Rogers built sets do seem to have open primari...Arran — 04:40 PM
Rogers Majestic R-646
Thanks RpdB I don't think there's much difference with interstage transformers of different models other than dimersion...Vlad95 — 03:27 PM
Rogers Majestic R-646
Vlad; I looks like your set has the same problem that mine did, both a bad output transformer, and a bad audio inters...Arran — 03:21 PM
Rogers Majestic R-646
Ouch! Not often the secondary takes a hit. Wish there was a better solution. I have a good interstage transformer but it...RodB — 02:59 PM
Rogers Majestic R-646
By the way, the bypass you suggested is a rare solution in some circuits. For example, this schematics solution is used...Vlad95 — 01:43 PM

[-]
Who's Online
There are currently 1135 online users. [Complete List]
» 1 Member(s) | 1134 Guest(s)
Avatar

>