EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

alberto telo
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Kent King left a comment for alberto telo
"I'm modifying my comment - check for 500 ohms (not 500K). Although this doesn't appear on the AW12 diagrams, if you look at the AW15 diagram, these two resistors are there in the early (Wunderlich) AW15 diagrams. The 50? resistor is shown…"
Dec 21, 2020
Kent King left a comment for alberto telo
"The burned area only obscures the multiplier dot. We can see enough green and the black end to know it is 50<something>. Most of the schematics don't have resistor values - but I'd do this - (1) read it with an ohmmeter; if it is…"
Dec 21, 2020
alberto telo left a comment for alberto telo
"Please, I looking for someone that does know the value of the resistor in the first RF Coil. When I open the cover I found that the RF Coil has two resistors, that the schematic don't have on it, and one the color has burned. I know for sure…"
Dec 21, 2020
alberto telo posted a status
"Please, I looking for someone that does know the value of the resistor in the first RF Coil."
Dec 21, 2020
alberto telo posted photos
Dec 20, 2020
alberto telo left a comment for alberto telo
"Thanks for the info, "
Dec 20, 2020
Norman S Braithwaite left a comment for alberto telo
"The Scott recommended replacement for the Wunderlich tube was a Type 55 tube with a wire connected from the grid cap to one (either one) of the diode plate pins.  Not all Arcturus Wunderlich tubes were blue glass and a couple other companies…"
Dec 18, 2020
David C. Poland left a comment for alberto telo
"If there is a grid cap wire from below the chassis inside the tube shield for the 55 tube, may be the suggested conversion to use a 55 tube. The proper blue glass Arcturus Wunderlich tube was a 2.5 volt 6 pin tube with no grid cap. The Wunderlich…"
Dec 18, 2020
alberto telo left a comment for alberto telo
"The previous owner, or someone before him, substitute the Wunderlich tube with a 55. I haven't fire up the radio, I am waiting for replacing the filter caps and what ever will need to be replace, but I was wonder if I must have the Wunderlich…"
Dec 18, 2020
alberto telo left a comment for alberto telo
"Thanks again, I will have time to start the restoration, or I hope so, during the Christmas time. Thanks again. "
Dec 17, 2020
David C. Poland left a comment for alberto telo
"Alberto - In Info Archive, in set folders, your set folder is Allwave Deluxe. There are two owners manuals. Suggest you read through both. but print the one with Art Deco graphics on the cover, as it is for the AVC version with your 12 inch pedestal…"
Dec 17, 2020
alberto telo left a comment for alberto telo
"Thank you so much, for sure I will do check the technical info."
Dec 16, 2020
David C. Poland left a comment for alberto telo
"Likewise, I have 1933 Scott AW-12 with AVC in an unexpected cabinet. My Milton Grande cabinet was introduced 1934, many months after the AW-12 ceased production. Like Kent commented, my speculation is that Scott took the AW-12 radio in on a trade…"
Dec 16, 2020
Kent King left a comment for alberto telo
"That is nice...my wife doesn't really give me any crap about the radios, but she sure wouldn't travel that far just to get one! :-)"
Dec 16, 2020
alberto telo left a comment for alberto telo
"Thanks for let me know.  My wife and I, we drove 8 hours to pick up the Scott.  "
Dec 16, 2020
Kent King left a comment for alberto telo
"So that is an EXCELLENT question. The earliest references to the Westminster cabinet are found in 1934 (2nd half of the year, in fact!). If this were a "back fit", we would have the hole for the AW15 BFO button under the bandswitch - but…"
Dec 16, 2020

I have bought my first Scott All Wave 12, One 12" Jensen speaker with a pp of 45. The cabinet is a Westminster. I think it is a 1933. I hope to start to work on it during the Christmas days, hope I will have some free time.

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At 11:30am on December 21, 2020, Kent King said…

I'm modifying my comment - check for 500 ohms (not 500K). Although this doesn't appear on the AW12 diagrams, if you look at the AW15 diagram, these two resistors are there in the early (Wunderlich) AW15 diagrams. The 50? resistor is shown as 500 ohms. So if you do read something close to that (if the resistor reads at all) - I'd go with 500 ohms - based on the early AW15 diagram.

At 11:24am on December 21, 2020, Kent King said…

The burned area only obscures the multiplier dot. We can see enough green and the black end to know it is 50<something>. Most of the schematics don't have resistor values - but I'd do this - (1) read it with an ohmmeter; if it is close to 500k (which would be grn-blk-yellow dot), I'd go with that as a replacement. A modern 470k is the standard value component and should work. That's about what I'd expect in the circuit here.

At 9:33am on December 21, 2020, alberto telo said…

Please, I looking for someone that does know the value of the resistor in the first RF Coil. When I open the cover I found that the RF Coil has two resistors, that the schematic don't have on it, and one the color has burned. I know for sure someone worked on the receiver in the late 40's (found few components that were belong to that time) but I don't think whoever was add the two resistors. I posted a couple of pictures. Thanks again.

At 5:05pm on December 20, 2020, alberto telo said…

Thanks for the info, 

At 4:09pm on December 18, 2020, Norman S Braithwaite said…

The Scott recommended replacement for the Wunderlich tube was a Type 55 tube with a wire connected from the grid cap to one (either one) of the diode plate pins.  Not all Arcturus Wunderlich tubes were blue glass and a couple other companies made equivalents although the equivalents are rare.

Norman 

At 12:32pm on December 18, 2020, David C. Poland said…

If there is a grid cap wire from below the chassis inside the tube shield for the 55 tube, may be the suggested conversion to use a 55 tube. The proper blue glass Arcturus Wunderlich tube was a 2.5 volt 6 pin tube with no grid cap. The Wunderlich tube was a low production tube which became unavailable. A number of AW-12 (and AW-15) Scotts used the Wunderlich for 2nd detector, and were later modified for Scott suggested use of the 55 substitute.

The Wunderlich tube socket has dark red center button instead of a tube number. 

At 9:56am on December 18, 2020, alberto telo said…

The previous owner, or someone before him, substitute the Wunderlich tube with a 55. I haven't fire up the radio, I am waiting for replacing the filter caps and what ever will need to be replace, but I was wonder if I must have the Wunderlich tube. 

 

At 6:12pm on December 17, 2020, alberto telo said…

Thanks again, I will have time to start the restoration, or I hope so, during the Christmas time. Thanks again. 

At 2:30pm on December 17, 2020, David C. Poland said…

Alberto - In Info Archive, in set folders, your set folder is Allwave Deluxe.

There are two owners manuals. Suggest you read through both. but print the one with Art Deco graphics on the cover, as it is for the AVC version with your 12 inch pedestal speaker.

The "Deluxe"  was for the single dial tuning, but it still evolved considerably from mid 1932 to mid 1934, with improvements in the tube line up, the speaker (single 11 inch, then twin speakers and finally Spring 1933 the Jensen pedestal you have), introduction of the rare Wundrlich 2nd detector tube December 1932 for AVC, and so on. Not all versions can be found with the exact circuit diagram. So if yours differs in some way, and the wiring looks original, then stick with the actual wiring you have.

Remember, Scott was a custom set builder. Each set was built upon receipt of an order. Scott was chasing performance and audio quality,  and Scott made design changes in pursuit of improved performance during a model run. Think of the hand built Rolls Royce automobile.

Restored, the AW-12 (aka Allwave Deluxe 12 tube) is a sensitive set with good audio for an early 1930's radio.

At 11:26pm on December 16, 2020, alberto telo said…

Thank you so much, for sure I will do check the technical info.

 
 
 

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