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: 2 Guest(s)
[-]
Recent Posts
Philco 41-608 changer coupler
3D-printing...short of machining, of course. Or molding.morzh — 05:20 PM
Philco 41-608 changer coupler
Thanks, Morzh. That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM

[-]
Who's Online
There are currently 5207 online users. [Complete List]
» 2 Member(s) | 5205 Guest(s)
AvatarAvatar

>