[Milsurplus] Recent Tek scopes

[J. Forster]

The older scopes are a lot more repairable than those with CCDs in them. There
were also lots made and there are lots around. There are also several good spare
parts sources.

-John



gl4d21a at juno.com wrote:

> I get nervous about Tek scopes from the 80s and 90s.  There are some
> models with overstressed custom ICs which have gone bye bye.  2445
> comes to mind, but I may have the 2s and 4s mixed up.  Same
> unobtanium as many WW2 repair parts.  How many more contain incipient
> failures waiting for the next power on?  Save your pennies and think
> LCD.
>
> I have reproduced the intermediate voltage tripler module for the 335
> for which there are no replacements available.  Handful of high
> voltage Schottky rectifiers and 3 kV disc ceramics and high voltage
> potting material.  Anyone adventurous with a 335 with dead 3 kV
> supply who wants to play with that voltage, contact me off the
> reflector for info.  Can't help with those wideband driver amplifiers
> and electronic switches, though.
>
> 73,
> George
> W5VPQ