On 2011 May 24, at 3:24 PM, Ian King wrote:
Of course, just for vintage warm fuzzies, little can challenge an old
Tektronix scope. I recently acquired a Tek 561A from a friend
locally. Mmmm, vacuum tubes.... Turn on the scope, go get a beer
while it warms up, measure and test with confidence. -- Ian
Our radio museum here has several old 500-series tek scopes that I'd
love to refurbish and get working. There's a 4-channel plug-in in one
of them, too. Size, maintenance and fan noise might make them
not-so-great for regular use but it would be nice to be able to use
them on occasion. I loved the crispness of the trace and the blue tint
of the phosphor in the CRTs of that series. I wonder why Tek didn't
continue using that phosphor.