AETNA 652 manufactured by Walgreen Co.
Just below are the restoration pictures. This is a beautiful radio.
This unit came in with out a power cord. I like that! I can and did cold test all the important parts made of Unobtainium. All the important parts tested good except the field coil of the speaker. It is open. I will be researching possible repair of the voice coil. If not repairable I'm confident a replacement 6.5" electrostatic speaker is available. Take a look below.
This chassis matches the schematic for a Walgreen Co., (Aetna) 652 found on Riders 9-1. The bias cell is shown, the output tube is a 6B5 as installed in the chassis and the two filter 8uf 450 volt capacitors are on both sides of the 1500 ohm field coil making up the Pie filter (as in the symbol for 3.141...). The schematic is rough but very usable.
There are three knobs. I need a fourth. If there is no match then four new reproductions will be procured. Some times a new reproduction does not color match the original knobs, exactly. This could be irritating to most owners. So it is better to order 4 new knobs then chance it with a miss match.
The chassis during restoration:
The 0.03 inch clear plastic came in for the tuning drive mechanism.
I measured the original and built a cutting jig. The outer edge is captured by the tuning knob shaft. It has to be smooth and consistent.
The cabinet finishing is Done. I normally would post the completed radio but I wanted to get these preliminary pictures up. I will add better pictures after reassembly.
Once complete I will add more pictures with and with out flash and backdrop.
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