"My experience, AW-15 meters action is not particularly sensitive, and need a decent signal to register any movement. In contrast, the AW-12 movement seemed more sensitive weaker signals.
I have had several examples of both models. Meter…"
The Fine Things are Always Hand Made
Joe Miller's Discussions
AW 15 Amp Problem
Started this discussion. Last reply by David C. Poland Dec 28, 2023. 34 Replies 0 Likes
I just started on an AW15 restoration and found that my Amp is not wired per the schematic that I am using from EH Scott Google Docs: …Continue
AW23 Speaker Question
Started this discussion. Last reply by Joe Miller Dec 3, 2022. 11 Replies 0 Likes
I am starting a patch job on a spare AW23 Speaker. Before I start, I decided to wire check the FC, VC, and all the connections to the plugs. It appears that the speaker wiring has not been modified…Continue
New Owner of AW27 Custom
Started this discussion. Last reply by Joe Miller Nov 25, 2022. 8 Replies 0 Likes
Hi everyone, I recently purchased a "custom" AW27. I say custom because it was constructed by modifying an AW23 tuner and putting together two AW23 amp chasses. It sits on a custom made Napier…Continue
Want to Buy Audio Output Transformer
Started Nov 18, 2022 0 Replies 0 Likes
I have an AW23 pedestal speaker with a missing AOT. Anyone have a spare out there?ThanksJoeContinue
Joe Miller's Page
Latest Activity
"Is a really lightweight movement.
Suggest you dismount the meter so you can carefully inspect it, and make a continuity check as well."
"Hi David,
Thanks for the info. I think my switch is working fine then.
I think the tuning meter is maybe stuck. It was moving just fine earlier on startup and was sensitive to signal strength. I think I switched the static switch…"
"Joe - Consider - Scott radios were built in Chicago, home of several 50,000 watt AM stations, not to mention WLW Cincinnati broadcasting "experimental" at 500,000 watts at night. Stories in Ohio of nighttime WLW playing on local fence wire…"
"Hope everyone had a good Christmas.
I am still messing around with my AW15 and have 2 remaining questions:
1. My tuning meter was working perfectly, but is now pegged to the right. I may have overdriven it when the voltage was…"
"BTW, Merry Christmas, all. Enjoy your Christmas lights twinkling off of the chrome of your Scotts!"
"I would put the two 20 mfd @ 450V caps in series, with equalizing resistors across each, to keep this from happening in the future. Also, what Kent said about wiring the hi/low switch permanently in "high" is a great idea. I…"
"Merry Christmas!
Well, the setting of the hi/lo switch is very important these days as line voltages are higher. Many times the hi/lo switch is bad and I just wire the set to always be in "hi" and leave it at that. Since it blew on…"
"New development....Hooked everything up and enjoyed listening to it for about an hour. Took it apart and put in the cabinet and turned it back on and it played great. Was just about ready to slide it up to the wall and it blew the…"
"I agree - leave those 3 apron mounted cap/coil units alone unless there is a good reason. Ditto for the previous 12 tube DELUXE. I have never had a reason for the several AW-12's and AW-15's over the years."
"Thanks guys, I'm going to do a deep dive on what has been done to mine before I get carried way. Will probably go Kent's way since the set is playing so good as is."
"I light of Norman's comment above (low-impedance cathode circuit filters) - I do not replace those 3 bathtub units in the AW15 sets unless the set is not operating well. I do replace other paper caps and the other bathtub units throughout the…"
"Joe;
Unfortunately all of the bathtubs are riveted in, as my aw15 was in such a mess when it came into my ownership I decided to restuff the bathtubs.
They all have soldered on backs and they are all potted in tar, there are two caps that I didnt…"
"The filters are in low impedance cathode circuits hence modest leakage through the capacitors will not impact circuit performance to a significant degree. If a filter capacitor in the unit is shorted, the set will still operate but bias will…"
"Those son of a guns are riveted in. Looks like a big job."
Joe Miller's Blog
WTB Speaker for Scott Masterpiece
Posted on October 1, 2019 at 7:05pm 2 Comments 0 Likes
I picked up a tuner and amp at the recent radio auction in Indy, but no speaker. So I am looking for one. It has an octal plug on it and the speaker has two field coils:
One at 680 ohms and the other is 125+65 ohms (it is also split)
Can anyone point me in the right direction?
Thanks,
Joe
AW-12 Single Dial Power Supply
Posted on March 13, 2018 at 11:02pm 0 Comments 0 Likes
I am looking for a PS. Don't need tubes necessarily.
Anyone have one for sale?
Philly Amp wiring
Posted on July 20, 2016 at 9:57pm 1 Comment 0 Likes
I am working on a Philly amp and am finding a number of wiring mods that deviate from the schematic. Some are due to someone bypassing a bad audio transformer and for adding a second phone plug input with volume/mixing pots.
But I also found a 125 ohm Candohm type resistor that is factory mounted to the side of the amp chassis. It is connected in series to the cap connected to pin 6 of the set plug socket and then tied to ground. It doesn't show on the schematics that I…
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