[volt-nuts] HP 3478A - Value? Quirks? Opinion?

[Charles P. Steinmetz]

Darrell wrote:

>and right now a calibrated one for $170

Be very, very careful about "calibrated" equipment you find 
on-line.  Ebay is full of sellers who sell "calibrated" equipment 
that hasn't been tested, much less adjusted, in three decades.  Some 
"calibrated" equipment I've bought has been nonfunctional.  Now, I 
ask the seller what lab calibrated the equipment, and on what 
date.  Rarely will sellers answer such a question.  In one case, the 
seller responded and when I called the lab, they had no record of the item.

So, unless the seller is prepared to show you a calibration 
certificate from a known and respected calibration lab, I'd suggest 
ignoring any such claim when you value the item.

Best regards,

Charles