12-22-2024, 03:13 PM
Greetings Philco Phans.
After about a year since I introduced myself with an incoming Philco 91H, Code 126 it is finally time to see what I’ve gotten myself into.
As mentioned in my introductory topic I am not new to vintage radios but this is the oldest and first Philco I’ve had in the shop. The information I have found on this site has been extremely helpful and after learning about the bakelite blocks and condenser banks I’m ready to assemble a list of parts needed.
At first look it appears to be unmolested but I have seen a few things that make me think it may have been in the shop sometime in its life. The transformer is HUGE!
My plan is to first replace the electrolytics, check the input transformer for proper continuity before applying any power using a dim-bulb tester.
-> The electrolytic capacitors
- are both 6uf 400v, P/N 4916 in the schematic but are different cans with a 8095 on one and the other, which appears to be copper, the label peeled off at one time - I suspect the shorter silver one is a replacement
- I plan on using 6.8uf 450v as replacements
-> The Bakelite Blocks and Metal-cased condensers
- there are nine of them and will heat to remove the tar but is it recommended to do this with the metal-cased condensers?
- I plan on using safety caps in the one connected to the input lines
-> Line cord
- This looks to be original and in good shape but I think the plug has been replaced, is it SOP to replace line cords?
- What would the original plug look like?
-> Cleaning tuning dial
- It’s quite yellowed but unbroken. I do not see any way to remove it without disassembly of the tuning capacitor so will some gentle cleaning lighten it up.
-> Speaker cloth
- I found a good match at Radio Grill Cloth, #1 looks to be a close match
Well, that’s enough for now. I’m hoping the shadow meter works but that will come much later.
After about a year since I introduced myself with an incoming Philco 91H, Code 126 it is finally time to see what I’ve gotten myself into.
As mentioned in my introductory topic I am not new to vintage radios but this is the oldest and first Philco I’ve had in the shop. The information I have found on this site has been extremely helpful and after learning about the bakelite blocks and condenser banks I’m ready to assemble a list of parts needed.
At first look it appears to be unmolested but I have seen a few things that make me think it may have been in the shop sometime in its life. The transformer is HUGE!
My plan is to first replace the electrolytics, check the input transformer for proper continuity before applying any power using a dim-bulb tester.
-> The electrolytic capacitors
- are both 6uf 400v, P/N 4916 in the schematic but are different cans with a 8095 on one and the other, which appears to be copper, the label peeled off at one time - I suspect the shorter silver one is a replacement
- I plan on using 6.8uf 450v as replacements
-> The Bakelite Blocks and Metal-cased condensers
- there are nine of them and will heat to remove the tar but is it recommended to do this with the metal-cased condensers?
- I plan on using safety caps in the one connected to the input lines
-> Line cord
- This looks to be original and in good shape but I think the plug has been replaced, is it SOP to replace line cords?
- What would the original plug look like?
-> Cleaning tuning dial
- It’s quite yellowed but unbroken. I do not see any way to remove it without disassembly of the tuning capacitor so will some gentle cleaning lighten it up.
-> Speaker cloth
- I found a good match at Radio Grill Cloth, #1 looks to be a close match
Well, that’s enough for now. I’m hoping the shadow meter works but that will come much later.
Nick
Yorktown VA
vwradios.com
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