[Test-Equipment] Tek 2430 Internal Battery Replacement

[Dino Papas]

My "spare" 2430 scope seems to have lost it's memory battery, at  
least that's the message I get on power up from the extended  
diagnostics routine.  Alex at "oscilloscopes at aol.com" who repairs  
mostly the 2440 series (that's the unit currently on my bench) tells  
me that he has rarely seen the actual lithium battery fail, but more  
often it's in the circuitry that monitors the voltage for the  
diagnostic.  I haven't opened it up yet to check the actual voltage  
but just in case does anyone know of a suitable 3.5V lithium  
replacement if in the event is something so simple as just the battery?

Of course you can still use the scope but it doesn't retain setups  
and as I recall also degrades the calibration....all of which are  
livable but not desirable.

Thanks in advance!

Dino KL0S/4