Forums :: NEW! Web Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives
Support This Site: Contributors :: Advertise


It is currently Dec Sat 04, 2021 9:34 pm


All times are UTC [ DST ]





Post New Topic Post Reply  [ 13 posts ] 
Author Message
 Post subject: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Thu 02, 2021 3:07 am 
New Member

Joined: Sep Wed 01, 2021 4:53 pm
Posts: 7
Hi all,
Does anyone have a schematic-manual for the Sears tuner chassis #528.54200 and-or the amp chassis #528.59910.
SAMS does not have these, even though their website said they did and I downloaded the pdf, but I got the schematic for 528.54050 and 528.59840.
They refunded my payment and said after searching their files they do not have any documentation for the chassis I have. The components are in a Sears Model 2082 Stereo console from 1962. It appears to be the first model they sold with a FM Stereo multiplex tuner. I think this model is very rare, many hours of searching the net has not discovered any photos or info on this unit. I have attached the Sears Spring-Summer catalog page that shows this stereo console.
I am in the process of restoring this unit and it sure would be nice to have a schematic for the electronics and the record changer. The changer is Sears 528.56711, one of the Silvertone Syntronic versions, apparently made by Warwick, but I cannot find any info on it as well.

It would be great to know if anyone else owns (or has owned) one of these Model 2082 consoles.

Thanks,
Will


Attachments:
File comment: Page from 1962 Sears Spring-Summer catalog with the Model 2082 AM-FM Stereo Phonograph
1962 Silvertone Stereo Model 2082 Mediterranean style.PNG
1962 Silvertone Stereo Model 2082 Mediterranean style.PNG [ 586.97 KiB | Viewed 664 times ]
Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Thu 02, 2021 7:01 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2573
Location: 77001
RE: record changer.
I believe this record changer will be the
same or very similar to yours.
It would assist if you posted photos of what
you have there.

RE: circuit schematics.
Look around inside the rear of the cabinet
and even under the cabinet.
Sometimes you'll find a pasted on schematic.

Hotwax


Attachments:
1 Silvertone Changer 417-10.pdf [648.67 KiB]
Downloaded 18 times
Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Thu 02, 2021 8:46 pm 
New Member

Joined: Sep Wed 01, 2021 4:53 pm
Posts: 7
Attachment:
Alliance motor 659-158 in Syntronic 528.56711 record changer.png
Alliance motor 659-158 in Syntronic 528.56711 record changer.png [ 727.81 KiB | Viewed 627 times ]
Hotwax,
Thank you. I am attaching photos of my Silvertone Syntronic 528.56711. The file you attached is helpful but it is not for the changer in my console. There are cosmetic and functional parts differences, but many similarities as well. I wonder if these record changers were made by different companies? My unit is from a 1962 model, so maybe you or other folks know if the one you sent is from earlier or later years.
Of note is that in the chassis you sent the drive wheel is part #39-13-0, but in looking at Gary's V-M drive wheel page I see that my drive wheel is part #39-14-0.

Unfortunately no schematics attached to any part of the cabinet, but there are two small labels that show the amp and tuner tube layout.

I greatly appreciate your help. I hope that someone has a copy of the manual for my changer. I have already restored a V-M 950 so I understand the basics of how these changers work. Cleaning them works wonders and in the case of the V-M it needed a new spindle, cartridge-needle and drive wheel, fortunately available from the V-M store. I guess if I need a new drive wheel I will have to have mine rebuilt unless someone has a stash of NOS 39-14-0 wheels.

Sinceely,
Will


Attachments:
Chassis #528.56711 Syntronic record changer.png
Chassis #528.56711 Syntronic record changer.png [ 788.69 KiB | Viewed 627 times ]
drive wheel Syntronic 528.56711 bottom view.png
drive wheel Syntronic 528.56711 bottom view.png [ 570.11 KiB | Viewed 627 times ]
drive wheel Syntronic 528.56711 record changer.png
drive wheel Syntronic 528.56711 record changer.png [ 686.26 KiB | Viewed 627 times ]
Sears Syntronic 528.56711 underside.png
Sears Syntronic 528.56711 underside.png [ 899.59 KiB | Viewed 627 times ]
Silvertone Syntronic 528.56711 record changer top view.png
Silvertone Syntronic 528.56711 record changer top view.png [ 942.64 KiB | Viewed 627 times ]
Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Thu 02, 2021 11:16 pm 
Member
User avatar

Joined: Jan Tue 31, 2012 1:55 am
Posts: 18715
Location: Mountains of Mourne. Ireland.
Sams Photofact Set-515 Folder-16 is listed as covering…
528.567
528.56701
528.56702
528.56704
528.56705
528.5674
528.56741
528.5676
528.56761
528.56762
528.56763
528.5678
528.56781

SILVERTONE 4 SPEED AUTOMATIC RECORD CHANGER - 60 CHASSIS (SAMS PHOTOFACT 515-16)
Image
Large image: https://i.ebayimg.com/images/g/ih0AAOSw ... -l1600.jpg
$→ https://www.ebay.com/itm/353623483376


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Fri 03, 2021 3:08 am 
New Member

Joined: Sep Wed 01, 2021 4:53 pm
Posts: 7
Thanks Egg,
The cover drawing certainly looks like my changer, but no mention of 528.56711. It seems the chassis in my unit is an odd duck.
I guess this Photofact folder is better than nothing. All Google searches and radio-phono websites have never found the chassis numbers than are in my console.
It would be nice to know if this Photofact shows that the drive wheel is the 39-14-0 that is in my changer, then I would know the info must be close enough to what I have.

I'm hoping a member of the forum has or knows someone with an extensive collection of manuals and schematics and the correct one for my unit will eventually surface.
I will write to the ebay seller and ask if they will confirm the drive wheel part number in the Photofact they have for sale.

I appreciate you help.

Will


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Fri 03, 2021 5:41 am 
Member
User avatar

Joined: Jan Tue 31, 2012 1:55 am
Posts: 18715
Location: Mountains of Mourne. Ireland.
Will wrote: I will write to the ebay seller…

What!
...just purchase it man. The Photofact is less than eight bucks shipped.
A sketchy e-mailed low resolution pdf from the publisher will set you back $22.00

Don't be bamboozled by all the numbers… I posted them for the sake of posterity. lol

60 year old part numbers are pretty much useless. If you find a NOS mechanical part for that changer, I will eat my hat.
:) Greg.


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Fri 03, 2021 4:03 pm 
New Member

Joined: Sep Wed 01, 2021 4:53 pm
Posts: 7
Thank you for your advice.


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Fri 03, 2021 4:52 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2573
Location: 77001
Here you go.
The Sams contains all the different
chasses and discrete listing of parts.

Your idler is in there.
Hotwax


Attachments:
1-Silvertone Warwick Changer.pdf [704.1 KiB]
Downloaded 18 times
Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Fri 03, 2021 9:57 pm 
New Member

Joined: Sep Wed 01, 2021 4:53 pm
Posts: 7
Attachment:
input-output box in Sears 2082 AM-FM-Phono console.jpg
input-output box in Sears 2082 AM-FM-Phono console.jpg [ 294.14 KiB | Viewed 557 times ]
Hotwax,
A thousand thanks. This is exactly what I need as I disassemble and clean the record changer.

Do you think there is a schematic for the Sears tuner chassis #528.54200 and-or the amp chassis #528.59910 but just not with these exact part numbers? I have written to some of the sites that sell schematics but so far no response. I know that I should remove the two chassis from the console and recap both of them, so maybe I won't need a schematic. The AM-FM radio does work but the FM side is weak. The vol, trebel, bass, reverb and balance controls work. I have attached a photo of a part of the unit that I don't know what it does other than it has a phono plug input and output. It does not have any additional inputs.

You have been very helpful, thank you.
Will


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Fri 03, 2021 11:01 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2573
Location: 77001
1.You appear to be lucky enough to have a reverb kit,
that is mentioned in the advertisement as an option.

The rectangular chassis is commonly called
a reverb tank.

This little console was probably a fairly high quality
item for Sears.

2. Have you pulled the radio, amplifier and MPX chasses
out of the console ?

3. It's possible that Sams 534-12 is correct for
your console.
Post the vacuum tube line-up in each chassis,
and we'll compare it to the schematic.

Be careful how you remove the tubes.
Pull up firmly on them while giving a slight
rotation.
Make notes of exactly where the tube goes,
if the tube # is not engraved on the chassis.

4. Post some sharp photos of what's inside the rear
of the console cabinet.

5.In the long run, you won't need a schematic, with
the exception of the radio circuit needing tuning.

For the required service of replacing old electrolytic,
wax-paper, or plastic bumble-bee type capacitors,
you can just do a one to one switch out of modern
microFarad values.

The parts will be labeled with their values.
It may take you a bit longer, because you'll
need to ID each part as you go.

You will want to get this service done, and not
power up the tube amplifier until at least
the electrolytic filter caps are replaced.

If the e-lytics happen to short, they can cause some
bad damage potentially to other components.
Hotwax


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Fri 03, 2021 11:40 pm 
New Member

Joined: Sep Wed 01, 2021 4:53 pm
Posts: 7
Thanks for the good advice and information. Is Just Radios.com a good source for the capacitors (and maybe resistors) or should I get what I need from Mouser?

I will remove the amp and tuner chassis and take photos and also the small tube charts that are stuck to the inside of the cabinet. I'm 73 and have lots of experience with all kinds of electro-mechanical stuff, but this is my first experience with tube powered equipment. I found a 1953 Firestone AM-Phono in a nice mahogany cabinet and restored it and the V-M changer. Amazingly the radio-amp works fine, so other than cleaning I have not done anything to the components....I guess i should.
I also have a 1947 tabletop Firestone AM-SW radio in a lovely wood cabinet, that has been recapped and it works great, no SW signal of course. I'm going to order some of the reproduction decals for it since the originals are long gone.

In researching the Sears catalogs available online I discovered that the Model 2082 was the first time a Multiplex FM stereo was offered, but this unit also has the AM-FM simulcast switch position as well, of course unless now days. When I switch the Radio-FM Multiplex-Phono to Multiplex the FM signal that is tuned in stops working. As you say, I probably should not be powering this system on until I replace all the caps. This console was mighty expensive for 1962, so I doubt many were sold, especially since you could buy a similar model w/o the FM stereo for $50 less, which was significant in 1962, and there were very few FM stereo stations operating in 1962. The other thing I like about this 2082 is it is quite compact but has pretty amazing speakers and the styling is not as ornate as the later consoles became.

Does the reverb tank need any servicing? I'm kinda curious to open it up and see what's inside.

Will


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Sat 04, 2021 6:36 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2573
Location: 77001
Chipster wrote:
Thanks for the good advice and information.
Is Just Radios.com a good source for the capacitors (and maybe resistors) or should I get what I need from Mouser?

I will remove the amp and tuner chassis and take photos and also the small tube charts that are stuck to the inside of the cabinet.
I'm 73 and have lots of experience with all kinds of electro-mechanical stuff, but this is my first experience with tube powered equipment.

Does the reverb tank need any servicing? I'm kinda curious to open it up and see what's inside.Will
Will, that's good you have some experience
with electronics.
Those paper tube location charts will be helpful.
I'm curious what's in the power amplifier.

1.Parts: I find Mouser to be consistent and their phone staff
are great.
After getting over the website's learning curve, I can navigate it
well.
If you need any assistance with parts selection at Mouser, I'll help you.

2. Reverb tank: This is probably an electro-mechanical
spring reverb tank.
Normally no maintenance, unless the spring breaks.
I would not open it up unless required.

You see these in a few other hi-fi's, in
the early 1960's.
One moniker was "vibrasonic", in Motorola stereos.

Hotwax


Top
 Profile  
 
 Post subject: Re: Sears tuner 528.54200 amp 528.59910
PostPosted: Sep Sat 04, 2021 10:18 pm 
New Member

Joined: Sep Wed 01, 2021 4:53 pm
Posts: 7
I'll post photos when I get the chassis out.
I have many projects going so it make take a while before I get to the console.
A Spring? That's hilarious. Reminds me of the sound generation gadgets that were used in the EM gun games of the 60s and 70s. Before SS sound chips the arcade game manufacturers had all kinds of goofy ways to make various sounds. One outer space sound was made with a spring hit by a solenoid with a basic amp. I need to Google how this reverb unit works.
I'm looking forward to having this Sears console tip top. I found a RCA Victor 78 record today two tunes by the Benny Goodman Trio, both described as a Fox Trot.


Top
 Profile  
 
Post New Topic Post Reply  [ 13 posts ]  Moderator: Alan Voorhees

All times are UTC [ DST ]


Who is online

Users browsing this forum: jsowers, Ken Doyle and 4 guests



Search for:
Jump to:  




































Privacy Policy :: Powered by phpBB