Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Model 39-6445E Chassis 21A, Any info, has hum, newbie
#1

Hi,
Newbie to this field, have unit as described above, can't find any web based info on this unit.
Details are: Consle unit June 1938 sold as 1939, 8 push button preselects, with thumb roller tuning/volume, Shortwave, police, am. 10 tubes.
Has a hum on startup, any suggestions to address hum?
Ontario, Canada location. Any help up here for parts/advice?
Appreciate any guidance on this.
#2

You may want to post under Electronic Restoration. The Canadian Philcos sometimes use a different model and chassis. Try looking in the Gallery for a set that looks like yours and try that model.
Terry

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
#3

It may be the Canadian equivalent to the U.S. later model 40-195 or 40-201? Check them out in the gallery.
Good Luck, John
#4

John hit the nail on the head. I have a Canadian Philco 1940 year book...your Model 21 is a 1940 model, not 1939. (It would have been introduced in June 1939 as a 1940 model.)

Looking at the schematic, I see that Canadian Model 21 is electronically equivalent to USA Model 40-195.

39-6445E is not a valid model number in the USA or Canada. That is a part number for a sticker, probably the tube layout sticker.

The hum is probably caused by faulty electrolytic capacitors. You'll have to replace all of the paper and electrolytic capacitors for safety and reliability.

You will have to check and see if the wiring under the chassis is insulated with rubber or not. Philcos made in the USA between 1939 and 1942 used rubber insulation on the wires, and that stuff dries out and falls off over time. Yours may use cloth insulation? I have a Canadian 39-330AT, and its wiring under the chassis is mostly cloth, not rubber. The only rubber insulation it had were the wires coming out of the IF transformers.

--
Ron Ramirez
Ferdinand IN
#5

Hello All,
Thanks to all for your quick and concise responses.
Yes, it is the Canandian version of 40-195, with mostly coth covered wiring. I will continue to post on the Electronic Restoration forum, as suggested soon.
Best wishes for the New Year.
#6

Mostly cloth covered wiring? We should be collecting Canadian Philcos down here, then. You're lucky...you haven't lived until you have had to replace all of the rubber insulation in a set like a 40-195. Or better yet, a jam-packed chassis like a 41-226 "Sled." Icon_evil

--
Ron Ramirez
Ferdinand IN
#7

Hi Ron,
If you are interested I can post the rear shot pic with wiring, with permission, as I 'm not familiar with another way to post the pic onto another server. Your call.
Look forward to learning more about this unit and what is involved in getting it to run properly.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
Wondering if I did it backwards. If a coil was wound backwards, the oscillator would not work at all. Old school...Chas — 07:23 PM
Philco 38-7 Speaker
4-ohm speaker. Black, Green leads.tludka — 07:00 PM
Philco 42-390, code 121 speaker
#87 on the schematic.  This radio had a 8" Zenith  speaker attached to it when I got it. I do don't know the hist...Stevelog — 06:39 PM
Philco 60 Squealing
I'm pretty sure I now have the litz wire soldered. This did not make any difference. Back in April I rewound the seconda...dconant — 06:25 PM
Philco 38-7 Speaker
Just to make sure, you chose either 4 ohm into 5K or into 10K? (blk-org or blk-grn)morzh — 06:23 PM
Philco 38-7 Speaker
I have let this one sit because of other duties. Now I am back, and I have a couple of questions. I hooked up a Hammond ...tludka — 05:34 PM
Philco 42-390, code 121 speaker
>>A closer examination of the very small print schematic indicates that the speaker is a PM type. This shows a ...morzh — 05:18 PM
Philco 60 Squealing
Litz is typically tinned by simply rubbing it with the soldering iron tip while immersed in solder (and a bit of rosin f...morzh — 05:14 PM
Philco 6K7
The suppressor grid (if by G3 you mean the S) is usually at the Cathode potential, which in this caes is GND. I am not ...morzh — 05:10 PM
Philco 16B Parts
Thanks for the reply. Unfortunately the radio was removed before bidding was over so I didn't get a chance to bid.dconant — 04:10 PM

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

>