Re: Tektronix 2465B startup error

"JVG" <eb5agv@xxxxxx> wrote in message
news:2d834ac7-56fd-4a42-b817-b2a62ef23e44@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hello Howard,

Thanks for your message!

On Dec 18, 11:01 am, "Howard Long" <how...@xxxxxxxxxxxxxxxxx> wrote:
I have very recently repaired my 2465B and successfully replaced the
lithium
battery with a pair of AA's in a battery holder stuck to the PCB with
some
double-sided foam adhesive tape. I used decent AA's (Duracell Ultra) in
an
attempt to reduce risk of leakage.

Recalibration takes quite some time afterwards, so be prepared!

Could you elaborate a bit about that?. Which equipment is needed?. I
have a good lab at home but perhaps not for calibration purposes.


The cal procedure, including the equipment needed is in the service manual.
They discuss the use of a pulse/mark generator, although I used a standard
signal generator with a variable duty cycle and a couple of attenuators for
2MHz and less, and an RF sig gen for the small number of higher frequency
measurements: maybe not the most accurate, but with careful use you can
still do a pretty good cal. The levels were calibrated with another 'scope
in circuit.

The service manual is available at http://bama.sbc.edu/.

One tiny correction - I actually used AAA's not AA's.

Cheers, Howard


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