[sdiy] Test Equipment Repair

[Roy J. Tellason]

On Saturday 29 January 2005 05:47 pm, Tom Arnold wrote:
> So, I pulled out my HP and had a poke at it.  No sweep.  Beam finder pulls
> up the beam and I get vertical if I hook channel A or B to the calibration
> point and hold down beam finder.  So pop the lid off and sure'nuff some
> burned reistors on a board hanging off the sweep control.

Ah,  but resistors so very seldom go and burn up like that without some 
provocation.  The question in my mind would be *why* did they burn out?

> So.  Question 1, this is an HP 1722A. 275mhz.   I see that a 1722B sold on
> evilbay for $112.  Is it gonna be worth sinking a few hundred into to get
> it fixed and calibrated or should I hunt down a good Tek unstead.
>
> Question 2, anyone know a good place in the bay area to get test equipment
> repaired? ( SF Bay Area ).

Too bad I'm so far away from you (I'm in PA),  or I'd have a whack at it.  If 
you don't find some other place that'll fix it let's talk about it.  :-)

> I expect, if the repair is under $300 or so, that my answer to #1 is "Fix
> it" as anything cheaper will probably be As Is and I could get something as
> bad or worse...

Only one place I worked at had an HP scope,  but it was a darn good one.  
Right up there with Tek,  just about,  though when I finally did get around 
to getting myself a good one it was a Tek...

That's the thing,  you (most times) need a scope to fix a scope!  Though 
burned resistors doesn't sound like it'd be one of those cases.