31 Jan
2012
31 Jan
'12
12:16 a.m.
On 01/28/2012 03:25 PM, Tony Duell wrote:
Oooooh yes. With storage, too. :)
Nope, not this one. It had an open filament. "Gee, why is this tube
cold?" :-)
I will see
about those connectors. The 555 is pretty far down in
the repair queue, but it's important to me to get it running eventually.
It's problaby the nicest of the 500 series. I know I prefer it to the 556
a friend has, for example (even though the 556 has a higher bandwidth).
It's a pity there never was a double-beam 'scope in the 580 seires. Now
that would be serious fun. In other
happy news, I repaired my Tek 575 this evening. It had
physical damage to the step generator switch that was holding it in an
impossible mode (single-family AND repetitive sweep) and a bad 6AL5 tube
in the step generator, so the step capacitor never got discharged. It
works great now.
I thought EB91s (6AL5s, whatever) went on for ever... Anyway well done on getting another fine instrument
going again.
Thanks!
I have a
575, I never had the 175 add-on, so I am limited to 2A maximum collecotr
current IIRC (!). I'd love a 570 (the valve curve tracer), but the 'real
audip' brigade have sent pries of those sky-high....
I don't have the 175 add-on either, never seen one in person. So,
only 2A for me too...sheesh. ;) And yes, a 570 would be great, but
those prices are unbelievable.
-Dave
--
Dave McGuire
New Kensington, PA