EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Thomas Day
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  • Chicago, IL
  • United States
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Thomas Day's Discussions

Allwave 23 sr#J497

Started this discussion. Last reply by Thomas Day yesterday. 3 Replies

Hi All: I have posted about this set when I got it in 2015, and have some additional questions/information about it.This appears to be an in-between version from the 5 knob set to the 7 knob set, in…Continue

Allwave 23 oscillatorr bypass caps

Started this discussion. Last reply by Thomas Day Jan 6. 2 Replies

HI:I have seen a schematic or picture of the bypass caps added to the filament connections of the oscillator tube in the allwave 23. I thought I had printed it out but cannot find it. Are the caps…Continue

Allwave 23 RF alignment

Started this discussion. Last reply by Thomas Day Jan 24, 2017. 5 Replies

The directions for the RF alignment of the Allwave 23 say that you connect the generator to the antenna terminals thru the "proper dummy". Capacitor? value? For all of the alignments I have done over…Continue

Allwave 23 Chrome covers

Started this discussion. Last reply by David C. Poland Apr 15, 2016. 1 Reply

I have a set of chrome covers in good condition for the power transformer for the Allwave 23.I also have the transformer, but it has a shorted primary winding. If anyone is interested let me…Continue

 

Thomas Day's Page

Latest Activity

Thomas Day replied to Thomas Day's discussion Allwave 23 sr#J497
"Hi all: Thanks to the Scott info archives, I found the (a) schematic for the 7 knob version of the Allwave 23 that may closely correspond to the one I have. It has the antenna coupling system J-497 has. However J497 is a 5 knob version, since the…"
yesterday
Thomas Day replied to Thomas Day's discussion Allwave 23 sr#J497
"Kent: Thanks for the reply. The modifications made to this set were not factory. Extra holes were drilled into the front of the chassis for extra controls, and I just found out that one section of the main power divider resistor is open. It had been…"
Tuesday
Kent King replied to Thomas Day's discussion Allwave 23 sr#J497
"Thom - There are only a couple known schematics for the AW23, I'm sure neither of them will cover this set precisely. I would suggest that if you go through it, follow the AW23 restoration guide that Norman wrote some years ago. If you spot…"
Tuesday
Thomas Day posted a discussion

Allwave 23 sr#J497

Hi All: I have posted about this set when I got it in 2015, and have some additional questions/information about it.This appears to be an in-between version from the 5 knob set to the 7 knob set, in that it has the 2 antenna posts and the new antenna coupling system, but is a 5 knob set. The chassis has been much modified, and the chrome is in rough shape, so it would never be a display piece. I have been doing some work on it the last few days, and coming up with some questions, and figuring…See More
Monday
Thomas Day replied to mike hadley's discussion philharmionic bezel spring
"Knowing your past experience with electro-forming, I would expect nothing less than perfection. Seriously, this looks like a very interesting way to make replacements for parts that are not available any longer. Hope it all turns out. Thom"
Jan 12
Thomas Day replied to Thomas Day's discussion Allwave 23 oscillatorr bypass caps
"Thanks Norman."
Jan 6
Norman S Braithwaite replied to Thomas Day's discussion Allwave 23 oscillatorr bypass caps
"They are 0.05-200.  The very earliest AW-23 sets did not have these filters. Norman "
Jan 5
Thomas Day posted a discussion

Allwave 23 oscillatorr bypass caps

HI:I have seen a schematic or picture of the bypass caps added to the filament connections of the oscillator tube in the allwave 23. I thought I had printed it out but cannot find it. Are the caps .05 or .1 ufd?This is the early version chassis.ThanksThomSee More
Jan 5
Thomas Day replied to Karl Sherwin's discussion Looking for a Hi Fi Crossover Box
"Karl: Check out Hammond organ and Leslie speaker on ebay.  Hammond and Leslie used these 5, 6 and 7 pin plugs and sockets on their amps and organ chassis.  They are still available and show up on ebay as new or used parts.  You can…"
Nov 1, 2020
Thomas Day replied to David C. Poland's discussion Scott cabinet needed? Have wood working skills?
" Nice work. I couldn't help noticing an RCA in the background. I have the same radio by GE with the square dial in almost the same cabinet.   Thom"
Nov 1, 2020
Thomas Day commented on Robert Feenstra's blog post Philharmonic AM/FM
" They did a beautiful job.  We has some Kimball organ parts done at a local shop here in Chicago.  They were going to strip the chrome and replate them in nickel, but when the chrome came off, the original nickel just needed to be…"
Oct 30, 2020
Thomas Day replied to Lance Hughes's discussion SCOTT NAPIER ALLWAVE 12
"Lance: The wire to the switch can be no. 18. I used regular plastic insulated for my allwave 23.  If you haven't already, check out Sundial Wire for  cloth covered wire.  They also have the original style flat plugs.…"
Sep 25, 2020
Thomas Day left a comment for Chuck Wolf
"Welcome Chuck."
Sep 17, 2020
Thomas Day replied to John Chidgey's discussion Current progress
"Beutful finish.   Thom"
Aug 29, 2020
Thomas Day liked John Chidgey's discussion Current progress
Aug 29, 2020
Thomas Day replied to John Chidgey's discussion Antenna suggestions
"Mike: What type of wire did you use to make this? Looks like a very professional build.  "
Aug 28, 2020

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Comment Wall (6 comments)

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At 10:07pm on September 9, 2018, Brian Sherrod said…

Hi Thomas, right after I posted my thread I discovered my model is a 310, not a 510.  I was relieved since the 310 did not have the power amp to begin with, and I thought mine was missing.  I removed my thread due to that since it was wasted space...  

Thanks for the comment and tip.

At 7:47pm on November 1, 2013, Dan Fox said…

Thanks again-I will give this information to my friend who has the chassis on his bench right now (waiting for condensers).  I have lived in Muskegon 25 years, and while I have been to the Frauenthal many times, I have never had a chance to go when the Damfinos get together.  That Barton pipe organ looks like a bear to operate!  An old aquaintance of mine, Cliff Martin, played it for many years.

At 9:31pm on October 31, 2013, Dan Fox said…

Thanks, Thom, you were right-I am looking for a .25mfd @1250v, not 25mfd (wouldn't be the first time I've missed the point!).  Which leaves me with the same problem-where can I find one?

At 8:05pm on May 23, 2011, Kent King said…
At 8:04pm on May 23, 2011, Kent King said…

Thom - Actually, it was Norman Braithwaite that put the checklist on here. I don't have a link handy right now, but I'll try to find it and post a link here...

Kent

At 5:28pm on April 28, 2011, David C. Poland said…

Look for a current drain.

 

My first AW-23 had a shorted primary when I acquired it 15 years ago. (I should have been suspicious of the 10 amp primary fuse  ...  like maybe a proper 3 amp fuse would blow.). Anyway, I recapped it before powering up the first time on my variac. The proper size fuse  would blow when my variac reached about 40 volts. I eventually obtained another power transformer from a rough amp, and the radio ran great. Then a year or so later the fuse blew Christmas day, after it had been playing 3-4 hours ..... same problem as before, blowing the fuse at moderate variac voltage.

 

The ultimate problem turned out to be in the speaker. The red B+ wire inside the pedestal from the speaker terminal strip to the field coil was laying across the point of a screw and made a partial connection at high voltage through the worn insulation. Excessive current was not quite enough to blow the fuse but enough to overheat the transformer,  progressively cooking  the transformer until the primary failed blowing the fuse the day I ran it several hours. I found the problem by close visual inspection of the routing of the wires in the speaker. Corrected the wire location, and the power transformer #3 has worked out fine for many years.

 
 
 

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