EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

All Blog Posts (85)

Super XII Troubleshooting & Alignment

I've spent several days working on a particularly difficult chassis and learned something I thought I'd share. First, here is what I had to start with: A nice single chassis Super XII. The IF aligned beautifully, and the 3 SW bands also aligned "by the book". The set sounded great on any SW band, AM was basically dead. There are only 3 things that are AM only, so I verified each coil. While checking continuity on the oscillator coil, I happened to notice that the 1K resistor seemed to move a…

Continue

Added by Kent King on July 10, 2017 at 8:04am — 1 Comment

Pics

How do I post pics

Added by Ron will on July 6, 2017 at 9:55pm — 1 Comment

EH Scott Model 510 Tuner Service Manual/Alignment

I came into a 510 Tuner recently and have renewed the caps and resistors as necessary.  I have the schematic for the Tuner and also the Power Supply/Audio Amp.  I built my own power supply/amp with 6L6s and a 6SN7 and diode rectification because one did not come with the tuner.  Now I need the alignment instructions for the tuner or better yet, the Service Manual.  Would anyone out there have a .pdf that would help??  Thanks very much, best, Steve 

Added by Steve Larrabee on May 21, 2017 at 10:02pm — 4 Comments

Scott tube shields

All, the Iowa antique radio club is having an auction this Saturday and we've got a box of chrome tube shields that is labeled "Scott tube shields".  I could probably bid on these if anyone wants them.

I have no idea what model they belong to.

Keith…

Continue

Added by Keith Lowe on April 27, 2017 at 8:25pm — 1 Comment

Battery Allwave, 6 volt

Does anyone have an idea of what speaker went with the Battery Allwave sets of the early 1930s?

These would be the 6 volt and 2 volt Allwave receivers.

Cheers,

John

Added by John T. Meredith on April 26, 2017 at 7:01pm — No Comments

Shield Grid 9 Renewing...........

Hi Kent:  I am working on a Shield Grid 9 now that is in very good shape. I have dismounted the SGA (shield grid assembly) because of low filament voltage on the three 22s - max I can get is 2 volts with 5 volts on the entry bus.  Taking that SGA off and opening it was much more of a chore than necessary because the designer apparently didn't think it would ever be required.  The paperwork discusses the short wave ability of the SG-9 and the need to change the coil in the 630 Antenna…

Continue

Added by Steve Larrabee on March 13, 2017 at 8:00pm — 33 Comments

PBS "American Experience" YouTube "Empire of the Air"

Here's a YouTube link to the PBS American Experience special "Empire of the Air", much taken from the Tom Lewis book. If you like old radio, you'll love this. https://youtu.be/-YEFlHGQLEE

Added by Tom Jardine on March 7, 2017 at 11:24am — No Comments

Super XII Restoration

A Fast Tour

 

The first step I always take is to remove all the tubes, shields, covers and anything else that can be removed from the chassis. This leaves us with something that looks like this:

 

And underneath we have:…

Continue

Added by Kent King on January 27, 2017 at 1:48pm — 8 Comments

McMurdo Silver Schematic

Need help with schematics for the Masterpiece 6. There was an early/late version, mine the earlier with dual choke power supply. There may
Be other variations much like Scott.

Added by Dave on January 21, 2017 at 12:48pm — 8 Comments

Missing thumb screw

Missing thumb screw on the angle face plate hold downs, Looking for 1pc  Does anyone have a extra one ???

Added by Robert Steigerwald on January 16, 2017 at 12:28pm — 1 Comment

WANTED: McMurdo V Front wood escutcheon

I am looking for a McMurdo V wood front will buy or trade for my spare MPVI front.

Thanks

Mike

Added by Mike Kennedy on December 31, 2016 at 1:52pm — No Comments

Text Background Color

I am wondering if there is any way to change the background color displayed with the text of posts by members. I have difficulty in reading the text with the gray background color. I have had cataract surgery and have to use a magnifying glass in order to read the posts. A white background makes it easy for me to read the posts without resorting to the magnifying glass. I was able to make this change on my personal page, but not here on the forum or blogs.

Joe

Added by Joseph W Strickland on December 29, 2016 at 6:19pm — 3 Comments

Audio Magazine Jan 1977 Nothing New Under the AM Sun

Jan 1977 AUDIO magazine "Nothing New Under the AM Sun" ANOTHER interesting article from AUDIO magazine, January 1977, continues the discussion on high quality AM radio receivers.

Added by Tom Jardine on December 27, 2016 at 4:00pm — 1 Comment

800B Schematics and Relay connection differences

Overall E H Scott Co. did a great job of documenting the 800B model versions, however, there is one area where they seemed to go into uncharted territory. The labeling of the Jacks and Plugs on the two chassis tends to lead to confusion. Normal practice in the industry is to have J numbers coincide with their mating P numbers. In the case of the 800B: the P1 Receiver plug of the Receiver chassis mates with J3 of the Power Supply chassis; P2 audio plug of the radio chassis mates with J4 audio…

Continue

Added by Joseph W Strickland on November 23, 2016 at 10:40am — 1 Comment

First Introduction to E H Scott Receivers

My first exposure to E H Scott receivers was through a friend who had acquired an 800B which was not functional. I was working in consumer electronics repair at the time. He had been unsuccessful in finding anyone who could repair it in Dallas. I finally agreed to try. It turned out to only have a shorted bypass capacitor in the FM IF strip that took out a B+ isolation resistor. It played fine after parts were replaced. No tubes were at fault and were still working very well.

My…

Continue

Added by Joseph W Strickland on November 15, 2016 at 8:45pm — 5 Comments

Envelope for Allwave Deluxe Instructions

I recently received the original envelope that the instruction manual for my AW Deluxe 12 came in. I have attached here a scan of the really neat cachet from the left side of the envelope.

Unfortunately there was no postal date stamp since a precancel stamp was…

Continue

Added by Ken Carr on November 15, 2016 at 11:30am — 4 Comments

W.T.B. Tuning Motor for Scott 800B

I have just been given a Scott 800B. It's all complete except for the tuning motor which was removed for some reason. I was wondering if someone might have one on a parts chassis that they would part with?

Thanks, Mike

Added by Mike Bracey on October 22, 2016 at 5:41pm — 14 Comments

Adjusting the Allwave XV tuning mechanism

The beveled gear on the end of my Allwave XV band switch shaft is missing a tooth but otherwise looks OK. The missing tooth causes the mechanism to slip and catch when switching from broadcast to shortwave. Is there some way that I can re-orient that gear on the band switch shaft so that the segment with the missing tooth isn't in the range used when switching from BC to SW3?

It looks to me like the range used for band switching is about 270 degrees so I'm thinking…

Continue

Added by Tony Peterson on October 13, 2016 at 9:24am — 3 Comments

Scott Allwave 1934 radio -- repairman needed

My mother is elderly and owns the following radio, it is in great shape but nevertheless needs minor repair and restoration:

 I inherited my radio from my parents who purchased it when they attended the

1934 Worlds Fair in Chicago.

It was purchased, paid for. and then shipped to Arizona where my parents

lived.  It apparently is a Tassman model - this info was given me by my son Curtis

Walling who did some primary…

Continue

Added by Curtis Walling on July 24, 2016 at 3:24am — 12 Comments

© 2017   Created by Kent King.   Powered by

Badges  |  Report an Issue  |  Terms of Service