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

Need Dewald Model J-802 Schematic
#1

Does anyone have a schematic for a DeWald model J-802?  It’s a 7 tube AM/FM radio in a Bakelite case.  The model I have uses a selenium rectifier and has a three wire plug in cord. I have included a couple of images for reference.  Any help would be appreciated.  Thanks.

Chet


Attached Files Image(s)
       
#2

Welcome to the Phorum!
Icon_wave

Looks like someone was similarly looking for that on ARF back in 2014 and did not locate one and someone else asked in 2019 also with no luck. They looked at SAMS as well apparently.

Steve Johnson has a few more schematics listed than nostalgiaair but J-802 is not listed. You might contact him anyway just to be sure.

Hopefully someone else on the Phorum can help. Good luck.
#3

Thanks for the quick response. I did try Radio Museum and Nostalgia Air also with no luck. Sometimes manufacturers put a small schematic on the inside wall of the cabinet. I was hoping someone may have this with a similar model. I will follow up with your recommendation. Thanks again.

Chet
#4

Hi and Welcome to the Phorum,

Here's plan B. 
We know the set was made in 1955. So we look around other sets that using the same tubes and topography to find something you can use as a guide. Here's a good place to start https://worldradiohistory.com/Beitman-Manual.htm I took a quick scan @ 1955 and a few sets in the RCA and Zenith section that maybe helpful. 
Don't get too hung up on the selenium rectifier it's just a resistor & diode vs a tube. Doesn't amount to a hill of beans circuit wise. Move around a bit with the years. I was surprised to see that most of the set listed in '55 AM radios, tube portables, and phonos.

GL

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
#5

I suppose some manufacturers may have licensed their designs to others during this period and this may be a good source of information. I worked on a Silvertone model recently that I could not find a model specific schematic for but looking at other Silvertone models of the same age was able to find one similar enough to use. I’ll try this route. Thanks for the suggestion.

Chet
#6

My set of rider books stop at 1950, though there may be something in Sams for this set. I could look in the 1955 Beitmans book, which I do have, but it may or may not have Dewald in it.
Regards
Arran
#7

Could you list the tubes. Thanks David




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM

[-]
Who's Online
There are currently 2329 online users. [Complete List]
» 2 Member(s) | 2327 Guest(s)
AvatarAvatar

>