EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Jon Ketron
  • Male
  • Lexington, KY
  • United States
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  • mike hadley
  • Joseph W Strickland
  • David C. Poland
  • Norman S Braithwaite
  • Kent King

Jon Ketron's Discussions

Understanding E.H. Scott's World's Record Receivers

Started this discussion. Last reply by Jon Ketron Oct 20. 9 Replies

Several weeks ago in person I had the pleasure of being exposed to several fine examples of World's Record receiver models.  The story told about the original World's Record intrigued me.  I find it…Continue

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Latest Activity

David C. Poland replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"We do find an occasional occasional misprint in Scott diagrams. Or a decimal point is too faint to be sure of."
Oct 23
mike hadley replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Jon; If you put the value of the volume pot and the coupling cap into an online calculator it gives roll off at roughly 125hz, if you then multiply the cap value by 10 this gives 12.5 hz, maybe a little excessive, I think that 0.025uf is the way to…"
Oct 23
Jon Ketron replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"I need to revisit the 025 mfd cap again.  I have taken a detailed look at both the early and late version schematics.  The late version schematic seems to be matching up to most of the values present within this set.  The added…"
Oct 23
Jon Ketron replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Thank you both.  I understand it will be difficult to get answers with regards to parts utilized via E.H. Scott as too many variables exist.  I find it interesting the early version previously worked on had no labeled resistors while this…"
Oct 23
Kent King replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Jon - Scott frequently changed suppliers, during the Depression, availability of parts was always a tough issue. Scott changed tube preferences along the way too, early on, he used Arcturus, later sets always include Sylvania tubes. Repairs would…"
Oct 23
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
Jon Ketron replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"I have taken a closer look at each dogbone resistor.  I find it interesting to have discovered most have the word "Continental" stamped in the center.  There are also resistors present without this logo.  The last AW15 early…"
Oct 21
Jon Ketron replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Kent, Thanks for including other examples.  Glad to know the felt set up on this AW15 is not a one-off.  Perhaps E.H. Scott felt they needed to be off set during an AW15 revision?  Did the AW12 deluxe or two dial have felt…"
Oct 20
Jon Ketron commented on Kent King's photo
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Ground Soldered

"Kent hope you do decide to document this restoration as a guide.  Will be most interested in following along."
Oct 20
Jon Ketron replied to Jon Ketron's discussion Understanding E.H. Scott's World's Record Receivers
"Neat!  Thank you Kent.  I will have to reference the Collector's Guide.  Thank you for the help in understanding the early years! Jon"
Oct 20
Kent King replied to Jon Ketron's discussion Understanding E.H. Scott's World's Record Receivers
"Jon - Both the AC9 and the auto radio are pictured in the Scott Collector's Guide. There are no articles for the AC9, only a couple magazine ads. Nothing from Scott either on the AC9. I'd guess prototype, if I was a betting guy. I also…"
Oct 19
Kent King replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Here are some coil wheels I just had sitting about...the 3 that are directly opposite are all out of AW23. I have no mark/set label on the one with the non-opposing felt strips. Not a "one-off" apparently. Looking at the odd coili, it is…"
Oct 19
Jon Ketron replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Thank you both. The second "Potter" resides near the Wunderlich socket.  This capacitor seems to have been added to the circuit via E.H. Scott.  Value looks to be a .025, would you concur? Thanks, Jon"
Oct 19
Jon Ketron replied to Jon Ketron's discussion Understanding E.H. Scott's World's Record Receivers
"Thank you for part 3 Kent.  Great info!  The AC9, would be interesting to research if one were ever to surface.  I would like to eventually take a look at any article's you my have regarding the AC9 if possible.  I am…"
Oct 19
mike hadley replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Jon: Just had a look at the under chassis of my aw-15, the cap in this position is 0.05 mfd. Mike"
Oct 18
Norman S Braithwaite replied to Jon Ketron's discussion Allwave 15 in Tasman Cabinet Electrical Restoration
"Jon:  A 0.5-mfd capacitor would be much larger than the one in your photograph.  I am quite sure it is a 0.05-mfd capacitor. Norman"
Oct 18

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