29 May
2008
29 May
'08
8:05 a.m.
Hello all, with all the talk of "classic" scopes: if anyone wants it
and is in the neighborhood, a Tek 7904 scope was put out to pasture on
our floor here at McGill, so I dragged it into my office. I can't
keep it here for too long so if there's no interest, I'll put it out
again.
It's got one 7A19 Amp, a 7D11 Digital delay, and a 7B53N Dual Time
Base; the fourth slot is empty (but covered). It appears to at least
somewhat work: power, lights, traces, etc. It was last calibrated in
82 according to a sticker.
Joe.
29 May
29 May
2:36 p.m.
On May 29, 2008, at 11:05 AM, Joachim Thiemann wrote:
Hello all, with all the talk of "classic"
scopes: if anyone wants it
and is in the neighborhood, a Tek 7904 scope was put out to pasture on
our floor here at McGill, so I dragged it into my office. I can't
keep it here for too long so if there's no interest, I'll put it out
again.
It's got one 7A19 Amp, a 7D11 Digital delay, and a 7B53N Dual Time
Base; the fourth slot is empty (but covered). It appears to at least
somewhat work: power, lights, traces, etc. It was last calibrated in
82 according to a sticker.
Oh, how I wish I were in the neighborhood! I'm well-equipped in
the scope department (Tek 2465A, Tek TDS3012, HP 54111D) but I'd
always make room for the venerable 7904!
-Dave
--
Dave McGuire
Port Charlotte, FL
8:42 p.m.
At 11:05 AM 2008-05-29 -0400, you wrote:
Hello all, with all the talk of "classic"
scopes: if anyone wants it
and is in the neighborhood, a Tek 7904 scope was put out to pasture on
our floor here at McGill, so I dragged it into my office. I can't
keep it here for too long so if there's no interest, I'll put it out
again.
It's got one 7A19 Amp, a 7D11 Digital delay, and a 7B53N Dual Time
Base; the fourth slot is empty (but covered). It appears to at least
somewhat work: power, lights, traces, etc. It was last calibrated in
82 according to a sticker.
Before it goes in the dumpster, if no one claims it, send me the plug ins!
My 7904 has a 7A26, 7A18, 7CT1N (curve tracer!) and 7B53A. It came to me
with shorted tantalums in the power supply-- might power up, probably
won't- just goes tick! tick! tick!
Took me weeks to find and replace all the caps that were bad. Works a treat
now.
Tom
-----
157. [Poetry] Seduced, shaggy Samson snored. // She scissored short. Sorely
shorn, // Soon shackled slave, Samson sighed, // Silently scheming,
Sightlessly seeking // Some savage, spectacular suicide. --Stanislaw Lem,
"Cyberiad"
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2 comments
3 participants
participants (3)
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joachim.thiemann＠gmail.com -
mcguire＠neurotica.com -
tpeters＠mixcom.com