EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Latest Activity

David C. Poland replied to John Stafford's discussion AW 23 amplifier voltages low
"Yes there are some 25 cycle Scott radios. They have an oversized power transformer (because additional iron mass is needed)., sometimes big black metal box instead of the chrome housing. No problem using a 25 cycle radio on 60 cycle power. Use a…"
4 hours ago
David C. Poland replied to Kent King's discussion The first Allwave 12 Deluxe
"With the AW 12 and AW 15 models, works well to replace the filter caps and the metal bathtub one riveted in place in the tuner, (except the large ones across the back if they are larger, about twice the size of the others). Rather than dismounts the…"
4 hours ago
Brad Winder replied to John Stafford's discussion AW 23 amplifier voltages low
"John, I thought I would chime in...Maybe Kent could tell us if this is a possibility ...did Scott build power supplies for 25 cycle use? Could that be the issue with the differences in voltages and the fact your transformer only runs warm to the…"
5 hours ago
John Stafford replied to John Stafford's discussion AW 23 amplifier voltages low
"Thanks Kent. Line voltage at my house is reliably between 120VAC and 123VAC. I use a variac on the bench to set voltage as necessary for testing. It is great to have typical current draw for the tuner B+, I will definitely check that.  I will…"
5 hours ago
Richard Sowry replied to Kent King's discussion The first Allwave 12 Deluxe
"Thanks Alex.  The problem is there are no values on the schematic. I've got information on the color codes of the mica caps if they follow the normal color codes of the times, meaning the 1920s and 30s.  I'm probably going to…"
5 hours ago
Kent King replied to John Stafford's discussion AW 23 amplifier voltages low
"John - That is interesting, with today's high line voltages, I always use the "Hi" setting and still have voltages near the top of the acceptable range. What is your local line voltage (mine is usually around 123VAC)?  Check the…"
8 hours ago
Alex R. Whitaker replied to Kent King's discussion The first Allwave 12 Deluxe
"Micamold capacitors, in my experience, are usually mica.  If they are large then they're probably paper.  Military gear uses a lot of the paper ones, and there are some micamold paper caps in the Philharmonic (at least there were in…"
8 hours ago
John Stafford posted a discussion

AW 23 amplifier voltages low

I have finished replacing capacitors on my AW 23. Radio has been powered up and is working on all but the Green Band. Reception is okay but nothing to brag about.Now that it is working I started checking voltages and have found most of the readings for the Amplifier are 10 to 20% low. The Service Data shows expected voltage readings while specifying a line voltage of 112 Volts. The document does not indicate which position the Hi/Low switch should be in but since the specified Voltage is >…See More
22 hours ago
Richard Sowry replied to Kent King's discussion The first Allwave 12 Deluxe
"Thank You very much Kent.  I don't want to damage anything so I will definitely wait till I restore all the components.  And I'll leave the micas alone.  Till I have another question. I thank you!! Dick"
yesterday
Kent King replied to Kent King's discussion The first Allwave 12 Deluxe
"Dick - Don't power up the amp without the tuner and speaker, the voltage on the first capacitor will go sky high and damage it. It must be run under load. The set B+ should be around 225-250 after the field and filters. Does you set have the…"
yesterday
Richard Sowry replied to Kent King's discussion The first Allwave 12 Deluxe
"Thanks Kent.  I'm a little leery about all the mica caps in this thing.  They are Micamold brand and I've always heard that they are really paper.  What is this forum's opinion?  I opened one up not too long ago…"
yesterday
Kent King replied to Kent King's discussion The first Allwave 12 Deluxe
"Probably not...I think the early AW12 just had an R/C circuit there for the cathode bypass. Kent"
yesterday
Richard Sowry replied to Kent King's discussion The first Allwave 12 Deluxe
"The caps along the back apron on this receiver aren't very big.  They are .1MFD with a 3k resistor in parallel.  They aren't any bigger than the other bathtub caps in the rest of the receiver.  Do these still have the coil…"
yesterday
mike hadley replied to Kent King's discussion The first Allwave 12 Deluxe
"As Dave mentioned earlier the larger bathtub caps have a cap and a coil, they are riveted to the rear apron and the backs are soldered on, here is a photo from one removed from an allwave fifteen, yes a later radio but does share a lot of similar…"
yesterday
Richard Sowry replied to Kent King's discussion The first Allwave 12 Deluxe
"Yes I did.  He said he had it for some time in his living room and was never going to get to restore it so he sold it."
yesterday
David C. Poland replied to Kent King's discussion The first Allwave 12 Deluxe
"Richard - you get that Scott Deluxe from Barry? "
yesterday

Members

 

Photos

  • Add Photos
  • View All

Forum

AW 23 amplifier voltages low

Started by John Stafford. Last reply by David C. Poland 4 hours ago. 4 Replies

I have finished replacing capacitors on my AW 23. Radio has been powered up and is working on all but the Green Band. Reception is okay but nothing to brag about.Now that it is working I started…Continue

The first Allwave 12 Deluxe

Started by Kent King. Last reply by David C. Poland 4 hours ago. 25 Replies

When Scott first introduced the new Allwave Deluxe set, it really wasn't much different than the 1931 2-dial set with the newly developed rotating coil assembly. The tube lineup includes four 24A…Continue

Help needed

Started by douglas wright. Last reply by David C. Poland on Tuesday. 21 Replies

Working on all wave 15, no sound or reception. Speaker rebuilt, everything good on speaker.Looking at schematic I see primary field coil only has 5 volts going to it, is this correct? all tubes are…Continue

homemade parts escutcheons bezels etc

Started by mike hadley. Last reply by mike hadley on Sunday. 23 Replies

Inspired by a recent post from Dave Poland, I thought that I would show a method of reproducing dial escutcheons etc, first is epoxy and the second from a process I used to mess around with as a kid,…Continue

Blog Posts

Sales Brochure Wanted

Posted by Kent King on July 3, 2023 at 8:27pm 0 Comments

I found this reference in a 1928 sales booklet. I would like to find the piece described. Next best - a good scan of one if you have it:

On/off AC toggle switch

Posted by Scott Dickson on July 2, 2023 at 7:14pm 9 Comments

Scott Radio Friends,

I need some help. I am finishing a restoration of a Scott Warrington cabinet. Everything is place except one thing.

I need a working on/off ac toggle switch.

Here's the catch. While the exit bore hole is .5 inches in width... the depth is also just over .5 inches wide. It is .75" thick wood...

The larger initial hole is 1.5 inches and @.2 deep. This means I need switch with a stem around .75 inches to make sure the toggle clears through the hole…

Continue

Is this a McMurdo Silver cabinet?

Posted by Kent King on June 27, 2023 at 7:00am 3 Comments

The title says it all...does anyone recognize this as a McMurdo Silver cabinet? I'm guessing it is not, obviously the mounting is all wrong. Opinions?…

Continue

Broadcast News article: Broadcasting in High Fidelity in 1935

Posted by David Wilson on May 31, 2023 at 10:24am 1 Comment

To members: I came across this February 1935 issue of Broadcast News online. It has a fascinating discussion on High Fidelity broadcasting, which was in its infancy, and the challenges at hand. The story has a relevance to  E.H. Scott Radio Laboratories because Murray Clay came from RCA as and electrical engineer in their radio licensing division just before this article was written.  As many of you know Clay was instrumental in helping Scott develop their High Fidelity receivers based on…

Continue
 
 
 

Events

Notes

New Materials

Courtesy of fellow member Carlos in Spain, I was able to scan in a large group of Capehart manuals. This includes at least one phono sold by Scott. You can find these items in the Scott Info Archive > Miscellaneous > Capehart.

Created by Kent King Aug 15, 2023 at 8:56pm. Last updated by Kent King Aug 15, 2023.

Welcome to our Site!

Welcome to The E.H. Scott Enthusiasts Site. If you are looking for manuals or service data on a Scott set, please click on the "Scott Info Archive" link above. If you have questions for forum members, a picture is worth a thousand words, please post a pic or two to help describe your question or problem. Finally, this forum works best when we all contribute. Answer questions, provide feedback, and if you have a document worth sharing, please scan it in as a PDF and forward it to me: Kent…

Continue

Created by Kent King Feb 22, 2016 at 8:06am. Last updated by Kent King May 21, 2023.

Collector's Guide

The Collector's Guide is available...if you don't have a copy, it is a great reference to everything Scott. Proceeds benefit the maintenance of this site. Email me at kent3256@hotmail.com for more information!  - Kent

Continue

Created by Kent King Apr 3, 2020 at 7:08am. Last updated by Kent King May 25, 2021.

Notes Home

Welcome! To view all notes, click here. Continue

Created by Kent King Nov 8, 2013 at 9:38am. Last updated by Kent King Nov 8, 2013.

© 2024   Created by Kent King.   Powered by

Badges  |  Report an Issue  |  Terms of Service