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 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
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
Thomas Day liked mike hadley's discussion Philharmonic thank you
Sep 13
Brian Sherrod left a comment for Thomas Day
"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…"
Sep 9
Thomas Day left a comment for Brian Sherrod
"Brian Check out the scott info archive at the top of the page. The 510 is listed with  technical and operating manuals as downloads Power supply/amplifier chassis  show up on eBay and one could be built from the info in the tech…"
Sep 9
Thomas Day replied to Day Radebaugh's discussion Newbie with an 800B
"Hi Day: I read thru the rf section of the tech manual. The RF tuned circuit frequency is set by the variable capacitor. As the capacitance value changes the frequency the circuit is tuned to also changes. Not sure where the Sams info gets the 600Kc…"
Sep 5
Thomas Day commented on Robert Mytnik's photo
Thumbnail

IMG_0406

"Early Webcor changer. 2 or 3 speed? Ceramic Crystal or magnetic cartridge?"
Aug 13
Thomas Day liked mike hadley's discussion 7 pin socket problem
Aug 4
Thomas Day replied to mike hadley's discussion Philly speaker substitute
"Very nice work. "
Jul 15
Thomas Day replied to Fran Mayer's discussion New member with an Allwave 23
"Interesting speaker design. My early all wave 23 has two sockets on the base for the tweeters. Is this one a later version that was supplied when  ordered with the tweeter option? Thom"
May 22
Thomas Day commented on mike hadley's photo
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Homemade eye bezel copy

"You do beautiful work. making the knob set is a work of art."
May 9
Thomas Day replied to Troy Taylor's discussion Modified Allwave 23 questions
"The difference between5z3 and 83v is the current capacity of the tube. You should be ok if you use a variac. There are 2versioms of the 83. The 83 is a mercury vapor type. The 83vis a regular high vacuum type. Tubes are still available. I have a…"
Dec 21, 2017
Thomas Day replied to Troy Taylor's discussion Modified Allwave 23 questions
"The cover is a four color plastic that is attached to the bezel on the cabinet. They are available from Radio Daze web site. There are 2 versions. One has full color white, blue, green and red bands that correspond to the color dots on the wave…"
Dec 21, 2017
Thomas Day replied to Troy Taylor's discussion Modified Allwave 23 questions
"Troy: Kent is essentially correct, but you do have a field coil speaker. You may also have the original output transformer in the added box. The added 500 ohm resistor pack probably compensates for the fact the new speaker has a different value for…"
Dec 21, 2017
Thomas Day replied to Eric Beheim's discussion How Do You Use and/or Derive Enjoyment from Your Scott Radio?
"My all wave 23 gets used mainly for broadcast stations and some AM DX work late at night. Also tune the shortwave bands to see what is out there, which is not much these days, except for some religious stations and Radio Havana. I have picked up…"
Nov 26, 2017
Thomas Day replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Jon: Most manufactures, Scott included, went with the least expensive components available that would still provide the quality of performance needed. It also depended on the quantity of parts needed for a given production run.,and supplier…"
Oct 21, 2017

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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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