EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Thomas Day
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  • Chicago, IL
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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 Kent King on Sunday. 14 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

Kent King replied to Thomas Day's discussion Silver Ghosts by JWF Puett
"I have 2 or 3 copies with different covers. Some were mis-printed, pages missed, or overlapped. I do not believe the copyright is still in force on these, JWFP has been gone for a number of years and I do not believe anyone in his family has…"
Sunday
Doug Smith replied to Thomas Day's discussion Silver Ghosts by JWF Puett
"Didn't see attachment, so trying again.  "
Sunday
Thomas Day replied to Thomas Day's discussion Silver Ghosts by JWF Puett
"Bill: I would need to go thru my Audio collection to find the specific issue.  I have them thru the end of publication, but they are currently in storage about 100 miles from my current home.  I think it would have been from the late…"
Sunday
Doug Smith replied to Thomas Day's discussion Silver Ghosts by JWF Puett
"Thanks for the update.   There may be several editions out there.   I attached the first few pages - copyright, frontispiece, and forward.  I don't have any Scott references in pages 16 and 17, but do have a facsimile…"
Sunday
David C. Poland replied to Thomas Day's discussion Silver Ghosts by JWF Puett
"I have Jan 1933  edition. Looks like the contents were from some service. 5x7 inches. The heavy weight cover (front and back ..  and middle pages 16 and 17) have the only references to E H Scott. Inside front cover shows E H Scott…"
Sunday
Doug Smith replied to Thomas Day's discussion Silver Ghosts by JWF Puett
"Thom, I have an almost perfect copy of the green cover July 1976 edition, second printing February 1977, that I can image to pdf, if it is helpful.   70 pages, with high quality schematics.   Did we determine if it is still under…"
Saturday
Thomas Day left a comment for todd landis
"As to the switch on the amp chassis, it selects either 110 or 120 volt power. The switch on the leads from the amp is the power switch and mounts in the hole on the top right side of the cabinet.  "
Apr 24
Thomas Day left a comment for todd landis
"Hi Todd: Welcome to the list.  I have an Allwave23 in the smaller version of your cabinet, also minus the tweeters.  I have done a recap on the radio chassis, and had a new power transformer built.  It plays ok, but the alignment is…"
Apr 24
Thomas Day left a comment for mike hadley
"Mike: Nice power supply. I can source a similar used Heathkit supply here on Ebay. I worked for them from 1967 thru 1974. I left in 1975. Here, Hammond transformer company makes suitable transformers for tube equipment at reasonable prices. I also…"
Feb 28
Thomas Day commented on Frank DeFilippi's blog post WTB All Wave 23 amplifier/power supply
"One possibility that I am considering is building a power supply for an Allwave 23 chassis that I have. I bought the chassis as a parts chassis without a power supply. While I do have an original supply that goes with my complete all wave 23, I…"
Feb 27
Jon Ketron and Thomas Day are now friends
Feb 13
Thomas Day liked Dave's discussion AW 23 Volume Expander
Dec 15, 2019
Thomas Day left a comment for Chris J. Buttery
"Welcome to the group.   "
Nov 16, 2019
Thomas Day replied to Y2K Bruce's discussion AW 27 on my work bench
"Looks nice. Is there a cabinet?"
Nov 14, 2019
Thomas Day commented on Robert Feenstra's blog post Philharmonic AM/FM
"Great to know that everything should be OK."
Nov 12, 2019
Thomas Day commented on Felix-A. Gravel's photo
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Jensen A12 Speakers

"Felix: Check the values of the field coils.  Unless these are identical, Jensen A12 speakers can have different values. The A12's that were used by Hammond in their tone cabinets have different values because of their use in the power…"
Oct 30, 2019

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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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