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Need help with Zenith Please.
1/4/2006 10:08:55 AMJeff
Hello everyone,
First off, thanks for responding to my post. Second, I did some more hunting last night and found the following numbers. If anyone knows anything about this radio, please pass on the info. I would greatly appreciate it.

8 tubes 6au6, 6au6, 5ba6, 6j6, 6v6 gt, 5y3 gt Japan realistic lifetime, 6tb, and gbe6. Two are covered with what looks like small paper5 towel rolls with alumunum foil wraped around the rolls.

Chassis # 9E21 # 135. Mod# 9A888R, the letters LS wrote in pencil. Some of the lettering on the plastic buttons are "radiorgan". The 6 outer control changing buttons are as follows. Left= lobass, bass, voice Right= treble, alto , normal.

The inner cabinet has the following numbers aswell. Volts 117 AC-50-60 cycle watts 100 including record changer. Again its a 1040's Zenith D228663. I hope this helps. Thanks again in advance!!

Jeff (Lex, Kentucky)

1/4/2006 10:15:04 AMBill VA
Hi Jeff,
Your set is from 1948. The SAMS data is 43-25. Go here for some info:

http://www.radiomuseum.org/r/zenith_9h882r_ch9e21.html

Bill VA

:Hello everyone,
:First off, thanks for responding to my post. Second, I did some more hunting last night and found the following numbers. If anyone knows anything about this radio, please pass on the info. I would greatly appreciate it.
:
:8 tubes 6au6, 6au6, 5ba6, 6j6, 6v6 gt, 5y3 gt Japan realistic lifetime, 6tb, and gbe6. Two are covered with what looks like small paper5 towel rolls with alumunum foil wraped around the rolls.
:
:Chassis # 9E21 # 135. Mod# 9A888R, the letters LS wrote in pencil. Some of the lettering on the plastic buttons are "radiorgan". The 6 outer control changing buttons are as follows. Left= lobass, bass, voice Right= treble, alto , normal.
:
:The inner cabinet has the following numbers aswell. Volts 117 AC-50-60 cycle watts 100 including record changer. Again its a 1040's Zenith D228663. I hope this helps. Thanks again in advance!!
:
:Jeff (Lex, Kentucky)
:

1/4/2006 10:32:12 AMJeff
Hey Bill VA,

Thank you very much!!!!

Jeff

1/4/2006 11:35:32 AMJeff
Bill, Not to sound silly but what is a SAMS data #?
1/4/2006 2:20:53 PMThomas Dermody
Also, your 5BA6 should most likely be a 6BA6, and your gbe6 should most likely be a 6BE6. I think that you misread the numbers on both. It is possible that the 1st one was in fact replaced with a 5BA6, as I've seen a 4AU6 (1st digit denotes filament voltage for most U.S. tubes). If you were reading the numbers off of the chassis, though, it most likely said 6BA6.

As far as your 6TB, I do not know what this one is. You will find out soon enough when you look at your schematic, though. I doubt that it is actually a 6TB. Perhaps it's a 6T6 or something along that line.

Thomas

1/4/2006 2:38:25 PMGreg Bilodeau
I didnt look this set up but if its an AM/FM set that 6TB tube is likely a 6T8, used as a ratio detector.
Maybe??
Greg


:Also, your 5BA6 should most likely be a 6BA6, and your gbe6 should most likely be a 6BE6. I think that you misread the numbers on both. It is possible that the 1st one was in fact replaced with a 5BA6, as I've seen a 4AU6 (1st digit denotes filament voltage for most U.S. tubes). If you were reading the numbers off of the chassis, though, it most likely said 6BA6.
:
:As far as your 6TB, I do not know what this one is. You will find out soon enough when you look at your schematic, though. I doubt that it is actually a 6TB. Perhaps it's a 6T6 or something along that line.
:
:Thomas

1/4/2006 4:53:31 PMFred R
It is indeed a 6T8 tube. Zenith paid for an Armstrong license so it functions on FM as a discriminator with a 6AU6 limiter before it. RCA refused to pay for the Armstrong license and invented the ratio detector to get around the license. I had one of these sets years ago with a two armed cobra changer (an automatic maroon arm for 78's and a manual green arm for 33 1/3 LPs). The audio circuit doesn't look like much with a single tube output but they used inverse feedback in the tone button circuit and they sound amazingly good.

Fred R


:I didnt look this set up but if its an AM/FM set that 6TB tube is likely a 6T8, used as a ratio detector.
:Maybe??
:Greg
:
:
::Also, your 5BA6 should most likely be a 6BA6, and your gbe6 should most likely be a 6BE6. I think that you misread the numbers on both. It is possible that the 1st one was in fact replaced with a 5BA6, as I've seen a 4AU6 (1st digit denotes filament voltage for most U.S. tubes). If you were reading the numbers off of the chassis, though, it most likely said 6BA6.
::
::As far as your 6TB, I do not know what this one is. You will find out soon enough when you look at your schematic, though. I doubt that it is actually a 6TB. Perhaps it's a 6T6 or something along that line.
::
::Thomas

1/4/2006 5:49:07 PMBill VA
Jeff,
SAMS data is the technical service documentation such as schematics, parts list, etc published since 1946 by the Howard W. Sams Company. Go here:

http://www.samswebsite.com/

You can read about them. Also plug in your chassis number 9E21 in the search and see what the cost will be to get your data...unless someone else comes up with a free or cheaper copy. Check with your local library too.

Bill VA


:Bill, Not to sound silly but what is a SAMS data #?



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