[Test-Equipment] HP 140T Analyzer

[Carl]

I still use one as a station monitor since a much later model came into 
the shop. I have enough spares to keep it going I hope.

The primary problems are CRT dimness and eventual failure. New ones are 
unobtanium unless you take out a 2nd mortgage.

The PS caps are also failing but are an easy replacement.

If you get that unit Id suggest bringing it to life with a Variac to no 
more than 105V. If it has a trace then do a PS recap before proceeding. 
Operating it at ~110V using a bucking transformer will help preserve the 
CRT as well as run cooler and stable. I did lose two CRT's over the 
years, one to an open filament, but had access to good used replacements 
for free. Thats when HP was offering steep trade ins on a new SA and a 
buddy ran a test equipment lab. Swapped out crt's and plug-ins.  I 
bought several dead plug-ins and even a mainframe for little money at 
hamfests and swapped those for the good ones also.

Carl
KM1H



----- Original Message ----- 
From: "wabate" <wabate at verizon.net>
To: "Test Equipment" <test-equipment at mailman.qth.net>
Sent: Thursday, November 20, 2008 9:32 AM
Subject: [Test-Equipment] HP 140T Analyzer


> Hi,
>
> I have the chance to pickup a 140T, 8553B RF plugin and 8552B IF 
> plugin. The equipment is supposed to be working but has not been used 
> in many years.  I have searched the web and Agilent for info but have 
> only gotten the barest data.  It appears to go to 110 MHZ with decent 
> sensitivity.
>
> I think it would serve me well but would like some more info.  Does 
> the scope have storage capability?  Is there any common problems I 
> should check for before purchase?  And critical proprietary parts that 
> are likely to fail and drive me nuts trying to obtain?  Any first hand 
> info would be appreciated.
>
> Thanks,
>
> Bill, K3PGB
>
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