New acquisition: EH Scott Allwave 15

[Josh F]

My latest acquisition is this Scott Allwave 15 that I got from a good friend. He got it 30+ years ago from the son of the original owner. It came with an extra set of tubes and the owners manual. It hasn’t been powered up in at least 40 years and as you can see from the pictures, this radio has had some “modifications”. The replacement tuning indicator is a disaster and there are extra switches added at the left side of the tuner chassis for a phonograph input. I was told that the radio was bought new without a cabinet so I assume it was installed into some kind of homemade cabinet for a while. My plan for this radio was to polish it up nice, electronically restore it, and put it on a shelf so that it could been seen and heard. If I can find the original dial/tuning indicator that will make this much easier. Any advice and opinions are welcome. The serial number is H-345. 

[David C. Poland]

Welcome Josh.

Do search the the FORUM section for AW-15 threads to get familiar with the AW-15 issues.

The good news - you have the correct AW-15 speaker and power supply (5Z3 rectifier and pair of 2A3 output tubes). All tube sockets have the tube number embossed.

The chrome on your receiver looks pretty good, a big plus. A junker AW-15 receiver should provide parts you need to install a correct tuning mechanism and tuning meter. Photos 1) of one in a cabinet and 2) a parts set for reference of the front with tuning mechanism.

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Hopefully, your owners manual is the correct version for your radio.

Your challenge is the AW-15 evolved considerably from Spring 1934 to Spring 1935. There are 5 diagrams  in the set folder for the Scott FIFTEEN - see the set folder for the Scott Fifteen located in the INFO ARCHIVE.. The early production used the obscure Wunderlich tube as the 2nd detector and later production used the 55 tube. If there are 4 antenna posts (two red) then was built as an early version using the Wunderlich tube for 2nd detector. Post a photo of the receiver back.  

If your receiver was built for the Wunderlich tube, the detector socket has no tube number, and had a dark red button on the socket. (third socket back on the far left).

The original phono input was on the rear left -  a ground post and Phono post, that were jumpered for radio reception. For phono operation, the jumper was removed and audio cable was connected to the 2 posts. The phonograph then needed a radio/phono switch to bridge reconnect the phono post to ground for radio reception.

My guess is the added switch front left performs that function for the RCA socket added to the front.

Good luck. Ask questions as needed on your thread.