08-07-2022, 06:35 PM
> What's the best way to gut the capacitor? I'd rather do it with the resistor intact if possible.
That likely isn't happening.
The best way to remove the guts is with heat. First, try to unsolder the tiny leads of the capacitor (and resistor if applicable) from the solder terminals.
Now, if you have an old toaster oven that you no longer use for food, this would be the best choice. Bake them for about 30 minutes at 225 to 250 degrees Fahrenheit. If you do not have one of these, the capacitors will need to be heated in some way until you can remove the innards. The components are sealed inside with a black waxy substance, just like Philco bakelite blocks were sealed. Grab the end of the capacitor which mounts to the chassis with a pair of needle nose pliers while the unit is hot, and push the stuffing out with an old screwdriver.
Here's how I rebuilt my Philco 65, from my blog.
Philco model 65 Repairs - Part 1
Philco model 65 Repairs - Part 2
Philco model 65 Repairs - Part 3
Philco model 65 Repairs - Part 4
Philco model 65 Repairs - Part 5
Philco model 65 Repairs - Part 6
Philco model 65 Repairs - Part 7 (Epilog)
Part 4 details how I rebuilt the capacitors in my set.
You mentioned some of the capacitors in your set having resistors of 100 ohms, not 200 ohms. This is interesting, as the original Philco data specified 200 ohm resistors in those capacitors. I suspect this may be another case of Philco making a running change and not documenting it.
Please do me (and all of us) a favor. Please specify exactly which capacitor/resistor assemblies measure 100 ohms instead of 200 ohms, Use the Philco part numbers as shown on the schematic; i.e. whether it is (5), (6), (9), (10), and/or (27). My 65 set oscillates if I turn the volume control up too high; I'm now wondering if I need to change some of my 200 ohm resistors to 100 ohm? I would need to study the schematic further.
Oh, and 1/2 watt resistors are suitable for replacements for these resistors. You can use 1 watt if you wish. They don't have to be wirewound.
That likely isn't happening.
The best way to remove the guts is with heat. First, try to unsolder the tiny leads of the capacitor (and resistor if applicable) from the solder terminals.
Now, if you have an old toaster oven that you no longer use for food, this would be the best choice. Bake them for about 30 minutes at 225 to 250 degrees Fahrenheit. If you do not have one of these, the capacitors will need to be heated in some way until you can remove the innards. The components are sealed inside with a black waxy substance, just like Philco bakelite blocks were sealed. Grab the end of the capacitor which mounts to the chassis with a pair of needle nose pliers while the unit is hot, and push the stuffing out with an old screwdriver.
Here's how I rebuilt my Philco 65, from my blog.
Philco model 65 Repairs - Part 1
Philco model 65 Repairs - Part 2
Philco model 65 Repairs - Part 3
Philco model 65 Repairs - Part 4
Philco model 65 Repairs - Part 5
Philco model 65 Repairs - Part 6
Philco model 65 Repairs - Part 7 (Epilog)
Part 4 details how I rebuilt the capacitors in my set.
You mentioned some of the capacitors in your set having resistors of 100 ohms, not 200 ohms. This is interesting, as the original Philco data specified 200 ohm resistors in those capacitors. I suspect this may be another case of Philco making a running change and not documenting it.
Please do me (and all of us) a favor. Please specify exactly which capacitor/resistor assemblies measure 100 ohms instead of 200 ohms, Use the Philco part numbers as shown on the schematic; i.e. whether it is (5), (6), (9), (10), and/or (27). My 65 set oscillates if I turn the volume control up too high; I'm now wondering if I need to change some of my 200 ohm resistors to 100 ohm? I would need to study the schematic further.
Oh, and 1/2 watt resistors are suitable for replacements for these resistors. You can use 1 watt if you wish. They don't have to be wirewound.
--
Ron Ramirez
Ferdinand IN
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