[Johnson] Valiant production date by serial number

[Patrick Thrush]

Dave, it looks like our rigs were not too far apart in production--as both
bear the 307xx sequence.  Mine does not have the -2 either, and I can
confidently say based upon 30 years of bench experience that this one was
not assembled at home.  Along with the immaculate soldering, additive lacing
on the harness, and component lead alignment, there are too many consistent
flourishes that scream 'assembly station'.

Nothing in this box seems to have a date code on it.  The tubes are a dukes
mixture of original Johnson (RCA), GE, Mil surplus, and "unknown".  One of
the 866A rectifiers is a WWII Navy pull...

Did Johnson source their components from the same manufacturer's throughout
the 10 year production run?  On this one the caps are all Sangamo or
Allen-Bradley.

PT



-----Original Message-----
From: johnson-bounces at mailman.qth.net
[mailto:johnson-bounces at mailman.qth.net] On Behalf Of Dave Harmon
Sent: Monday, February 27, 2012 12:51 PM
To: johnson at mailman.qth.net
Subject: Re: [Johnson] Valiant production date by serial number

According to published advertisements back in the day...I have one
here....the model number for factory assembled transmitters was 240-104-2.
Kits were 240-104.
My tx is much too nice to be a kit and it does not have the -2.
I suppose it's possible to have been a kit but if so I have never seen a kit
assembled this good. 
My s/n is 307??
A few parts had 60' date stamps on them.

Dave Harmon
K6XYZ[at]sbcglobal[dot]net
Sperry, Ok.


-----Original Message-----
From: johnson-bounces at mailman.qth.net
[mailto:johnson-bounces at mailman.qth.net] On Behalf Of Patrick Thrush
Sent: Monday, February 27, 2012 11:21 AM
To: johnson at mailman.qth.net
Subject: [Johnson] Valiant production date by serial number

I have searched about, and can find no reference on determining a
manufacture year via the serial number.  My 'new' rig carries a model number
of 240-104, and a serial #30798.  It is factory wired and not a kit.  Any
insight is appreciated!

 

73,

Patrick Thrush, AE1PT

Bath, NY  14810

http://www.ae1pt.com <http://www.ae1pt.com/> 

42.333  -77.309   CQZ 5  FN12ih

SKCC #4473

 

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