Monday, February 26, 2024
New Pictures from the Interwebs
Just got these pictures from a chap on Antique Tube Radios. Seems that Powell didn't actually make the radio but instead had them made by Gilfillan Bros. and sold them as a Powell. First picture I have got that had the the two electrolytic capacitors. I have already made them for this radio and them are different, oh well...
Saturday, February 24, 2024
Marshon Assembly/Disassembly/Install
This post illustrates the assembly/disassembly of the Marshon capacitors in case of future capacitor replacement.
Wednesday, February 21, 2024
Monday, February 19, 2024
More Work on Mershon Cowpastures
Received the insulating shoulder washers today and thought I would see if my design is going to work out... I squared up the cap and expanded the cap a bit to fit snuggly inside the 1-1/4" copper pipe. Have not received the pipe yet...
Saturday, February 17, 2024
Thursday, February 15, 2024
Tuesday, February 13, 2024
Front Panels Stripped and Tuning Capacitor Work
To replace the crumbling trimmer capacitor I bought a sheet of Mica from McMaster-Carr, just could not find it smaller/cheaper anywhere else. So I got the trimmer capacitor dielectric cut out and when testing the trimmer's range I discovered that water got into the tuning capacitor's mounting bolts so I had to take it all apart to dry it out... 20 effin nuts! Glad I had some ignition wrenches as there is not a lot of room in there.
Another Powell
In my quest to get a picture of the label on the back of the chassis I came across this radio on FB. Not a Powell but named an Oregonian. Was it made by Powell? There are some chassis differences, No toggle switch, tube shield cans instead of panels, Mershon(s) in a different location, and one less RF amp (224).
Saturday, February 10, 2024
Update
A while back I posted "next Steps" so here is an update:
- Purchase:
- Lacquer ✔
- Power Cord Wire ✔
- Resisters ✔
- Capacitors ✔
- Veneer ✔
- Feet - Felt?
- Cowpasture Cans (ebay?) ✔
- Grill cloth?
- Power Cord Strain Relief ✔
- Molding epoxy for capacitors and resistors ✔
- Generate Schematic ✔
- Generate Parts List ✔
- Determine the state of the speaker ✔
- Determine the state of the output transformer ✔
- Determine the state of the grill cloth ✔
Friday, February 9, 2024
Thursday, February 8, 2024
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A bit of a journey with this chassis. Didn't have a schematic so I had to make one. I went by the existing circuit but found out that s...