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Unknown EH Scott AM/FM Chassis
7/2/2006 5:03:00 PMRay
Hellow fellow radio folks. I just aquired this EH Scott reciever (AM/FM) no shortwave, and I am looking for the schmatic for this 2 chassis set. I will give the basic details. 26 tubes total 23 of them are octal, and 3 are 7 pin minitures (for FM Band), the FM band is the current modern 88-108 Mhz band. 2 5U4 rec., pair of 6L6's p/p audio, R.F. chassis and power supply/output and FM IF section on 2nd chassis & a rather sophisticated audio expander/compression circuit on RF chassis. I am unable to locate a schematic for this chassis ( I have the complete Riders Vol 1 through Vol 20, & it is not listed. Searched the internet, no help.
Anyone out there have any idea what model EH Scott this one maybe? Thank,s Ray
7/3/2006 1:24:43 PMEdd
26 toobs....right sure there isn't a Tee Wee also hid out in there?...heh....heh... How's about narrowing down our search window of 40-60's by pulling a couple of original tubes and confirming the presence of their common code dates (year-week) to zero in on the ~ date that the tubes were stufed into the equipmemt. That of course, considering that the brand of tubes were not utilizing alphabetical code date designators.
Also any chance of a thorough inspection of the chassis'
did not reveal a black ink, stamped on chassis ID number?

73's de Edd

7/3/2006 1:37:08 PMFred R
:26 toobs....right sure there isn't a Tee Wee also hid out in there?...heh....heh... How's about narrowing down our search window of 40-60's by pulling a couple of original tubes and confirming the presence of their common code dates (year-week) to zero in on the ~ date that the tubes were stufed into the equipmemt. That of course, considering that the brand of tubes were not utilizing alphabetical code date designators.
:Also any chance of a thorough inspection of the chassis'
:did not reveal a black ink, stamped on chassis ID number?
:
:73's de Edd
:
Sounds like a Scott Metropolitan. A friend of mine used to have one. It resembles an 800B without the pushbuttons or shortwave. The extra tubes on the chassis are for a Dynamic Noise Reducer that was licensed from HH Scott around 1947 that used tube noise gates to reduce record scratch. My friend's set had a Thorens CD-40 78 only changer which used removable steel needles. The set has to be before March of 1948 since they originally came with 78 only phonographs. It's the last decent built Scott before those flimsy Meck built Scott 510's came out. I think the schematic if not on this site was in Sam's Photofacts.

Fred R

7/3/2006 1:44:31 PMFred R
::26 toobs....right sure there isn't a Tee Wee also hid out in there?...heh....heh... How's about narrowing down our search window of 40-60's by pulling a couple of original tubes and confirming the presence of their common code dates (year-week) to zero in on the ~ date that the tubes were stufed into the equipmemt. That of course, considering that the brand of tubes were not utilizing alphabetical code date designators.
::Also any chance of a thorough inspection of the chassis'
::did not reveal a black ink, stamped on chassis ID number?
::
::73's de Edd
::
:Sounds like a Scott Metropolitan. A friend of mine used to have one. It resembles an 800B without the pushbuttons or shortwave. The extra tubes on the chassis are for a Dynamic Noise Reducer that was licensed from HH Scott around 1947 that used tube noise gates to reduce record scratch. My friend's set had a Thorens CD-40 78 only changer which used removable steel needles. The set has to be before March of 1948 since they originally came with 78 only phonographs. It's the last decent built Scott before those flimsy Meck built Scott 510's came out. I think the schematic if not on this site was in Sam's Photofacts.
:
:Fred R

I checked on this site and it should be under the Scott Radio Labs Model 16. It says Metropolitan on the schematic.

Fred R

7/4/2006 3:37:43 PMRay
:::26 toobs....right sure there isn't a Tee Wee also hid out in there?...heh....heh... How's about narrowing down our search window of 40-60's by pulling a couple of original tubes and confirming the presence of their common code dates (year-week) to zero in on the ~ date that the tubes were stufed into the equipmemt. That of course, considering that the brand of tubes were not utilizing alphabetical code date designators.
:::Also any chance of a thorough inspection of the chassis'
:::did not reveal a black ink, stamped on chassis ID number?
:::
:::73's de Edd
:::
::Sounds like a Scott Metropolitan. A friend of mine used to have one. It resembles an 800B without the pushbuttons or shortwave. The extra tubes on the chassis are for a Dynamic Noise Reducer that was licensed from HH Scott around 1947 that used tube noise gates to reduce record scratch. My friend's set had a Thorens CD-40 78 only changer which used removable steel needles. The set has to be before March of 1948 since they originally came with 78 only phonographs. It's the last decent built Scott before those flimsy Meck built Scott 510's came out. I think the schematic if not on this site was in Sam's Photofacts.
::
::Fred R
:
:I checked on this site and it should be under the Scott Radio Labs Model 16. It says Metropolitan on the schematic.
:
:Fred R

Thanks folks;

Fred R. I think that you have identified this chassis. Yes it resemmbles the 800 series w/o push buttons. Yes it does have 26 tubes. Upon removal of the cover shield of the tunning capacitor/ FM tunner front-end, I found a date (Nov 5 1947) stamped on the back of the dial drive assembly. This chassis uses WWII (6SG7, 6SH7, etc.) metal tubes.

Now all I need is a schematic and alignment instructions, & setup/calibration of the dynamic noise reducer & scratch fillter circuit. Any help or links out there?

7/4/2006 7:36:59 PMFred R
::::26 toobs....right sure there isn't a Tee Wee also hid out in there?...heh....heh... How's about narrowing down our search window of 40-60's by pulling a couple of original tubes and confirming the presence of their common code dates (year-week) to zero in on the ~ date that the tubes were stufed into the equipmemt. That of course, considering that the brand of tubes were not utilizing alphabetical code date designators.
::::Also any chance of a thorough inspection of the chassis'
::::did not reveal a black ink, stamped on chassis ID number?
::::
::::73's de Edd
::::
:::Sounds like a Scott Metropolitan. A friend of mine used to have one. It resembles an 800B without the pushbuttons or shortwave. The extra tubes on the chassis are for a Dynamic Noise Reducer that was licensed from HH Scott around 1947 that used tube noise gates to reduce record scratch. My friend's set had a Thorens CD-40 78 only changer which used removable steel needles. The set has to be before March of 1948 since they originally came with 78 only phonographs. It's the last decent built Scott before those flimsy Meck built Scott 510's came out. I think the schematic if not on this site was in Sam's Photofacts.
:::
:::Fred R
::
::I checked on this site and it should be under the Scott Radio Labs Model 16. It says Metropolitan on the schematic.
::
::Fred R
:
:Thanks folks;
:
:Fred R. I think that you have identified this chassis. Yes it resemmbles the 800 series w/o push buttons. Yes it does have 26 tubes. Upon removal of the cover shield of the tunning capacitor/ FM tunner front-end, I found a date (Nov 5 1947) stamped on the back of the dial drive assembly. This chassis uses WWII (6SG7, 6SH7, etc.) metal tubes.
:
:Now all I need is a schematic and alignment instructions, & setup/calibration of the dynamic noise reducer & scratch fillter circuit. Any help or links out there?

Ray,
The schematics are on this website, http://www.nostalgiaair.org/Resources/588/M0016588.htm
I made a mistake in the model. It's Model 16A. The regular Model 16 is pre-war and a different thing altogether. I mentioned earlier that Sam's published it too but you would have to hunt it down. By the way, the Dynamic Noise Reducer was marketed first under the H.H. Scott name. One came with my 800B. I saw an identical unit on ebay with a Scott Radio Labs nameplate. I never rebuilt mine as I replaced the Astatic phono pickup with a GE RPX magnetic pickup which did not sound scratchy. Have fun with it. It's a good sounding set.

Fred R

7/4/2006 10:03:31 PMEdd
Sounds like that unit is encroaching upon encompassing the features of some of our fine old military receivers….with it utilizing a tuned RF stage and tandem IF AM amps…..even along with its utilizing tuning eyes for FM and AM.
Sams shows it...16A... as being in their Number 40 folder 18. Their folders usually tend to have much more relevant info packed into them; if you can’t actually find the manufacturers literature.
73’s de Edd
7/6/2006 1:52:59 PMRay
:Sounds like that unit is encroaching upon encompassing the features of some of our fine old military receivers….with it utilizing a tuned RF stage and tandem IF AM amps…..even along with its utilizing tuning eyes for FM and AM.
:Sams shows it...16A... as being in their Number 40 folder 18. Their folders usually tend to have much more relevant info packed into them; if you can’t actually find the manufacturers literature.
:73’s de Edd
:

My gratefull thanks to both Edd & Fred for their help and feedback. I downloaded the schematic from the URL Fred provided. Also found a Tech Manual at; http//www.radioera.com a excellent resource for tech manuals and other resources.
Ray



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