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

First Post on 37-620 restoration
#1

Hi: This is my first post on this forum and my first Philco. It's nice to have a place that has a focus on one radio brand. I'm into my chassis restoration and I have a question about one part. Its a large wattage resistor connected to the 12 uf cap. I believe its part number 64. I measure 15k but the schematic and parts list says 9k. Its probably drifted but I thought I should ask. Thanks for any advice.

Fredericton,  N.B.  Canada
#2

Schematic here
http://www.nostalgiaair.org/PagesByModel...13212.pdf'

You should be replacing all the electrolytic and paper capacitors as well as any resistors out of tolerance. Replace that 9000 2 watt with a 10K 2 watt.
#3

Thanks Codefox: I do have the schematic. I started replacing caps from the audio end first because I was waiting for my main filter caps. I've finished the audio and rf stages and am starting the power supply section now. So.... I can assume the schematic is correct and that is a 9K resistor?. This 37-620 is in a 37-650 cabinet. It looks like someone grafted the shadow meter from the old chassis on this one. I checked the circuit out and it looks like it might work. They removed the 10k resistor (R33) and put the shadowmeter leads there. That pretty well matches with the kind of circuit that the shadow meter came from in its original chassis. Anyway, this is an interesting radio to work on and I'm anxious to see how it performs. John

Fredericton,  N.B.  Canada




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Atwater-Kent 84, restoration.
Hello mike, What nice looking radio I have one AK in my collection it's a console I have not started restoring it yet ....radiorich — 11:21 PM
91H Code 126 Restore
Just to make it more confusing here is another model 91 schematic that doesn't show parts with dotted lines in that spot...Arran — 10:37 PM
Atwater-Kent 84, restoration.
The wires were desoldered from the can, and the capacitors checked. All checked at 0.102 uF, which is correct. So the c...morzh — 09:41 PM
An attempt to remove the Field Coil from a G speaker
Arran Yours probably then the H speaker, same as mine.morzh — 08:39 PM
An attempt to remove the Field Coil from a G speaker
Mike; I would like to have a look at the speaker in my model 96, but the set is packed into a corner in the basement. ...Arran — 08:04 PM
91H Code 126 Restore
Thanks Arran, I'm convinced the power cord is good but have a nice repro plug for it. Would it be prudent to add a fus...RealRider — 07:28 PM
91H Code 126 Restore
As I was studying this schematic I was wondering what does this dotted line means?  I haven't traced it out yet. An o...RealRider — 07:22 PM
91H Code 126 Restore
When it comes to the cloth covered power cords, if they are not frayed, and are flexible, and if I can bend one without ...Arran — 06:21 PM
An attempt to remove the Field Coil from a G speaker
Could be. The central cylinder is OK, but the sides are...well. What's done is done. I wonder if some standard bobbine w...morzh — 06:02 PM
An attempt to remove the Field Coil from a G speaker
Mike; As I was saying it doesn't look like they used much of a bobbin for the field coil, not like a Magnavox one wou...Arran — 05:49 PM

[-]
Who's Online
There are currently 5506 online users. [Complete List]
» 1 Member(s) | 5505 Guest(s)
Avatar

>