Philco Model 20 - Printable Version
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RE: Philco Model 20 - morzh - 06-01-2013
Don't pot it fully, leave the can in the air. Just the leads.
RE: Philco Model 20 - GarySP - 06-02-2013
Regarding that extra cap on your chassis, look in the Philco Repair Bench site under service tips. One of the tips explained adding a cap to eliminate high pitched whistling under full volume conditions. This might be the answer to your extra cap. Take care. Gary
RE: Philco Model 20 - pete7189 - 06-04-2013
Is there any specific order in which those caps in that big can go in?
RE: Philco Model 20 - morzh - 06-04-2013
Just follow the diagram of the caps in the can and you will be fine.
RE: Philco Model 20 - pete7189 - 06-04-2013
Looking at the can from the back of the chassis, one row of pins are 1, 3, and 5 and the other 2, 4 and 6?
RE: Philco Model 20 - GarySP - 06-05-2013
The can points are numbered 1 through 6. Point 5 is not used in the can, but as a tie point under the chassis. Caps are installed as follows...
1.5 - between points 1 and 3
1.0 - between points 1 and 2
1.0 - between points 1 and 4
.13 - between points 2 and 6 ( I used a .15 cap here)
I used non-polarized mylar 630 volt caps for all in the can. Hope this helps> Take care. Gary
RE: Philco Model 20 - pete7189 - 06-06-2013
Another thing I noticed when I had it out of the cabinet was some previous owner spliced a more modern power cord on to the existing cloth covered one under the chassis.
RE: Philco Model 20 - GarySP - 06-06-2013
Seems the power cords were something of a weak link. Almost every other radio I've seen has had a modern cord splice to the radio or the old cord. Period cloth cords are available from several sources on the net.
RE: Philco Model 20 - pete7189 - 06-26-2013
Here's a pic of my model 20.
RE: Philco Model 20 - morzh - 06-26-2013
Where?
RE: Philco Model 20 - pete7189 - 06-26-2013
It somehow wouldn't attach. The file size was too big.
RE: Philco Model 20 - morzh - 06-27-2013
Make it 1024 bit H-size, it will then.
RE: Philco Model 20 - pete7591 - 09-12-2014
I finally got my model 20 to play by using a long piece of wire for an antenna and dropping it out the window of my apartment. preforms good on strong local stations.
RE: Philco Model 20 - morzh - 09-12-2014
Congrats.
20 is a nice radio. Not the best sounding one, no, but nice overall. And simple. If it weren't for the can filter restuffing, I'd call it a walk in a park.
RE: Philco Model 20 - radiohenry - 09-12-2014
When I did the filter can I cut the wires where thy go thru the can, removed the screws , put the can in an old crock pot my wife no longer wanted , heated it up slowly till the tar got just soft and by pulling on the leads the whole mess came out in one lump. The can was lined with some sort of paper so there was no adhesion of the tar to the inside of the can. It was a lot easier than I had hoped. I replaced all the resistors except the long tapped resistor . On the blocks I just by hand drilled the wires out using a slightly oversized drill thru the rivets and soldered the new caps to the top lugs.
When I powered the radio up it performed very well. The fellow I did it for was more than happy. I also replaced the input PP transformer. They are often open.
Henry