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 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

second allwave 23 added to collection

Started this discussion. Last reply by Thomas Day Feb 13, 2015. 3 Replies

I have just added J497 to my Allwave 23 collection. This is just the receiver chassis. It is in rough shape and has been 'modified' with extra controls. It looks to have been a 7 knob chassis and has…Continue

Silver Ghosts by JWF Puett

Started this discussion. Last reply by Bill Liers Jan 25, 2015. 5 Replies

I have a copy of this that I have had since the 1970's. It is the publication that got me hooked on Scott radios and finally led me to buy my Allwave 23. It was mentioned in a copy of Audio Magazine,…Continue

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Latest Activity

Thomas Day commented on Lawrence E Edmister's blog post AW23
"I have an all wave 23 that I have done a recap on several years ago.  Most of the information you will need is on this web site. This is a late reply, so hopefully you will have found and gotten plenty of data for this radio by now. This is one…"
May 30
Thomas Day replied to Jon Ketron's discussion McMurdo Silver Masterpiece VI Electrical Restoration
"Looks like very tight spaces to work in, compared to the Scott all wave chassis."
May 30
Thomas Day replied to Day Radebaugh's discussion Newbie with an 800B
"Have you been able to do any more checks on your 800B?  While power transformers rarely go bad, it can happen. I had to have a new transformer built for my Allwave 23 several years ago. Heyboer Transformer co. in Grand Haven Mi. Took a couple…"
May 23
Thomas Day replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Jon: Thanks for the demonstrations. There is something about listening to 1930's music on a radio from the era. Our local station WBBM plays old radio shows on Weekend nights. Sound wonderful on my Allwave 23. This now inspires me to actually…"
May 19
Thomas Day replied to Jon Ketron's discussion ELECTRICAL RESTORATION: E.H. SCOTT AC-10
"Looks great, sounds very good. "
May 9
Thomas Day replied to Troy Taylor's discussion Modified Allwave 23 questions
"When I re did my early Allwave 23 I used the .1 value caps except for the specific .05 values which were original. Not sure how much difference it makes, it would probably change the cutoff frequency in the IF strip the most. The impedance of a .1…"
Apr 29
Thomas Day replied to Jeff Barna's discussion AW23 Restoration?
"I have always been curious as to why this arrangement was chosen for the Allwave 23.  I also have the 5 knob 1935 model.  I have restored it well enough to play, but I still need to put it back on the bench for a complete alignment.…"
Mar 21
Thomas Day commented on mike hadley's photo
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fitted laser engraved dial

"This looks really good. Did you start with a photo copy of the original to transfer the markings?"
Mar 9
Thomas Day commented on mike hadley's photo
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Laser engraved dial

" Beautiful. What did you use for the base, and was the source a photo copy of the original?"
Feb 22
Thomas Day commented on Doug Holt's photo
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bottom

"Doug: This should be fairly easy to figure out. It does't look like anything has ever been connected to the cap, but  that just may be the angle the picture was taken from.  Trace the wires back to the connection points in the…"
Jan 28
Thomas Day replied to Jon Ketron's discussion ELECTRICAL RESTORATION: All Wave 12 Deluxe
"Jon Thanks to a member of this list, I was able to have a power transformer reproduced for my  Allwave 23. The company is Heyboer transformer co. in Grand Haven Mi.  It took a couple of months to have it done and there is a small size…"
Jan 21
Thomas Day replied to Fran Mayer's discussion Waverley Grande Cabinet
"Thanks. My Allwave 23 came from a collector near Chicago, where I live.  Judging from the condition of the chassis and cabinet, I don't think this one got very far away from here. The collector didn't seem to want to let me know where…"
Jan 17
Thomas Day replied to Fran Mayer's discussion Waverley Grande Cabinet
"Beautiful cabinet work.  "
Jan 17
Thomas Day replied to Troy Taylor's discussion Just acquired first EH Scott radio, an Allwave 12, and have some questions.
"Troy: The antenna you are using is directional. You can rotate it for best signal from the station."
Oct 4, 2018
Thomas Day replied to Brian Sherrod's discussion Scott model 310 ratio transformer T7
"A suggestion: If the coil is good, try using a thin rubber band or layer of wax on the slug or as a shim to lock the slug into the former. This will allow you to do the alignment and then a small drop of wax will hold the slug in place. Easier than…"
Sep 20, 2018
Thomas Day liked mike hadley's discussion Philharmonic thank you
Sep 13, 2018

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Comment Wall (6 comments)

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.

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

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