Re: Oscope advice

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>

Hi Chris,

Work all the knobs and switches back and forth many many times...

Tek scopes like to corrode the contacts over time, but they are self 
cleaning with use....

Cheers,

         Terry

At 11:32 PM 8/12/2003 -0500, you wrote:
>A while back I got a decommissioned Tektronix 7704 A 'scope, and it seems 
>one of the channels is in need of callibration - square waves aren't so 
>much square ;).  Where can I dig up information on how to recalibrate 
>it.  One other thing, on the lower horizontal timescale settings - like 
>into the nanosecond ranges the scope seems to become unstable and the 
>display will suddenly become unreadable.  What is causing this?
>
>Thanks a bunch,
>
>Chris