Posts: 8
Threads: 1
Joined: Jul 2019
City: Philadelphia
State, Province, Country: PA
Hey Everyone,
I recently purchased a Q1791WA (or at least that's what I believe the model number is).
Aesthetically the piece is in great condition with signs of wear and slight dings from moving around.
On the audio front, there is a terrible hum when the radio is turned on, and I'm unable to get the turntable or reel to reel players to work.
I'm finding very limited information about this piece online and wanted to come here for a bit of guidance on how to kick off my first project!
Any help is very much appreciated!
(This post was last modified: 08-19-2019, 09:44 PM by Qbinalex.
Edit Reason: typos
)
Posts: 15,691
Threads: 551
Joined: Oct 2011
City: Jackson, NJ
Welcome!
Treat it as any antique piece. Even if it is much younger piece than those from 1930-s, it still has to be recapped when it comes to electrolytics and paper caps. The resistors might fare better.
And then there are mechanicals.....for tape recorder you could possibly get some insights from Tapeheads.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 8
Threads: 1
Joined: Jul 2019
City: Philadelphia
State, Province, Country: PA
Thanks Morzh! That was my plan! And thank you for the advice on Tapeheads, I'll look there for a bit of help.
Here are some photos of the piece as well!
Posts: 102
Threads: 14
Joined: Jul 2017
City: Bakersfield, CA
Wow. that's a lot of radio!
Posts: 165
Threads: 5
Joined: Jul 2017
City: Woodland, CA.
Nice box..... Now show us them pretty insides..
Steve
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
And I thought I was ambitious restoring my first radio
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
I suggest you replace any wiring that looks bad too as long as you’re in there. I’m having to do that because a few wires just crumble when touched
Posts: 8
Threads: 1
Joined: Jul 2019
City: Philadelphia
State, Province, Country: PA
Posts: 1,824
Threads: 114
Joined: Jul 2014
City: Sneedville, TN
I suggest you look here. The service information is not free, but it is not expensive either. I have used it myself: https://www.samswebsite.com/
Posts: 816
Threads: 25
Joined: Mar 2014
City: Louisville, KY
Hmmmm, . . . nice VM changer!
They gravitated to BSR later on with a dip in quality.
(This post was last modified: 08-20-2019, 06:47 AM by Jake Blake.)
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Agree with Mike the Druid. If you don't find it in Sams Photofacts...you probably aren't going to find it. And I would be frankly surprised if it isn't in a Photofact folder.
--
Ron Ramirez
Ferdinand IN
Posts: 8
Threads: 1
Joined: Jul 2019
City: Philadelphia
State, Province, Country: PA
I was able to find all the documentation on Sams Photofacts. Thanks all for the suggestion/help.
Posts: 8
Threads: 1
Joined: Jul 2019
City: Philadelphia
State, Province, Country: PA
Hello all,
The quarantine / self isolation has kicked my "restoration" into high gear.
I've restored the VM changer and have it moving and playing tunes.
Now on to fixing the hum emitting from the speaker... After checking all speaker wires and ground I'm pretty sure this is capacitor issue.
Is there a preferred/recommended site that everyone uses for purchasing capacitors?
I'm specifically looking for two Philco 30-2593-14 (4 uF / 25NP).
THANKS!
Posts: 7,283
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Would that cap be connected between two of the speakers?? Is the hum present when you select the radio or tape position?
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
Posts: 8
Threads: 1
Joined: Jul 2019
City: Philadelphia
State, Province, Country: PA
Hi Radioroslyn,
The cap is connected to the 12'' speaker which is connected to the remaining speakers.
The hum is present when I select radio am/fm, tape, and/or phono.
Thanks!
(This post was last modified: 04-20-2020, 08:45 PM by Qbinalex.)
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
Jackson 715 not working
|
Now that you posted the schematic, I don't know why that Sprague electrolytic cap is across the meter, as it is not indi...MrFixr55 — 05:51 PM |
HiFi (Chifi) tube amp build - but my own design.
|
What may be lacking in the PP Tube amps may be the 2nd harmonics, which some, especially RCA back in the day called &quo...MrFixr55 — 05:32 PM |
Jackson 715 not working
|
Usually in an emission tester, the tube under test is measured as if it were a diode. So, some testers connect all the g...RodB — 04:17 PM |
Restoring Philco 37-604C
|
Yep. F5 is green, D5 is Red.
Red is Bad.
Green is Clean.morzh — 01:30 PM |
Jackson 715 not working
|
I did start to do that but I stalled out because I could not figure out how the grid and plate get voltage. In this diag...daveone23 — 11:52 AM |
Restoring Philco 37-604C
|
(Insert Homer Simpson "DOPF" Here.)
When all fails, look at the can. Took the Ron Ramirez advice, red Caig D...MrFixr55 — 09:23 AM |
Philco 91 Speaker Replacement
|
From your text I am not sure if you intend to use the existing speaker with a resistor instead of the field coil.
It wo...morzh — 08:44 AM |
Philco 91 Speaker Replacement
|
My field coil is bad. I am still hoping to find an original, but if I can't I will go with a fitting Philco speaker, 125...dconant — 08:34 AM |
Philco 91 Speaker Replacement
|
As Rod said, it is OK to use a fitting speaker, and then look for an original one.
If you buy a Hammond 125 output tr...morzh — 08:15 AM |
Philco 91 Speaker Replacement
|
Yes, I often have to substitute, then keep an eye out for an original. In the meantime, the radio is working and being e...RodB — 08:02 AM |
Who's Online
|
There are currently 3690 online users. [Complete List] » 2 Member(s) | 3688 Guest(s)
|
|
|
|