as shorted and was pulling down a power supply.
>
> Tom WB6UZZ
>
>
> From: Richard (Rick) Karlquist
> To: Discussion of precise time and frequency measurement
> Sent: Tuesday, June 20, 2017 12:02 PM
> Subject: [time-nuts] HP 4815 Vector Impedance Analyzer repair
&
.
Tom WB6UZZ
From: Richard (Rick) Karlquist
To: Discussion of precise time and frequency measurement
Sent: Tuesday, June 20, 2017 12:02 PM
Subject: [time-nuts] HP 4815 Vector Impedance Analyzer repair
I have a non-functional HP 4815, don't know if it
is the probe or the box. A
There's a guy on eBay who sells HP stuff (and other) who does certified
calibrations and repairs of HP stuff... can't be that hard to find...
KN5U is his eBay ID (and call sign?) He calibrated my HP freq counter
before sending it to me after I won it on one of his auctions...
__
Rick
Sorry to say I do not know but I do remember an article in EDN I think.
The ground connections were riveted and essentially made poor contact after
many years.
Drilling them out and putting normal screws nuts and lovking lugs in
evidently really restored the units.
Regards
Paul
WB8TSL
On Tue,
I have a non-functional HP 4815, don't know if it
is the probe or the box. A long time ago, there
was a fellow named George Standford (something like
that) who repaired these. My old contact information
for him is no good. Does anyone know if he is still
in business, or if there is any other pl
