Quote:
Originally Posted by Ian - G4JQT
... They vary in price considerably on ebay. I'm sure the cheapest are cheap for a reason ...
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There are persistent stories of some eBay sellers having access to factory reject valves. They sell them cheaply without mentioning their reject status. Personally I treat any valves with a 'too good to be true' price as, well, unlikely to be 'true'.
Turning to actual first-hand experience, I picked up one of the Golden Dragon GZ34s in a box of random valves at a boot sale once. I took to using it as my test valve when a piece of suspect equipment came my way, on the basis that it was cheap enough that I could afford to have it destroyed by a downstream short if one should ever develop. It lasted for ages and withstood plenty of abuse.
Cheers,
GJ