On 5/24/11 11:45 PM, Brent Hilpert 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.
Oh, I don't know what it's called, but I LOVE that phosphor!
500-series scopes are just amazing devices in so many ways. If you have
the opportunity I strongly encourage you to bring them back to life.
They pull a lot of power and generate a lot of heat, but properly
maintained they'll behave just fine.
-Dave
--
Dave McGuire
Port Charlotte, FL