OT: Fig. 1 of the Tektronix Jack Rogers doc.... Tunnel Diodes and the stock market ?? { apologies ... really } I was looking at Fig. 1 in the Jack Rogers doc that Dennis graciously posted, ... and was

David &/or others: Could someone make contact with the daughters or the administrative person and get a Phone# or email address, to allow us to contact them ? -- Clearly there is interest in this coll

Mullard DH3-91 1" CRT See: http://www.hanssummers.com/tinyscope.html RCA (1937) Model 151 1" Scope (unknown) 3" round 3RP1 CRT Navy OS-8/u scope https://blogs.telosalliance.com/found-in-the-attic-os-8

Early information on some small CRT's can be can be found in the 1947 MIT Rad. Lab book series. See: http://www.bunkerofdoom.com/lit/mitser/ Volume 22, Cathode Ray Tube Displays http://www.nj7p.org/Ma

OT: Building simple Oscilloscope, .... an aside. hi Walter, In the 1960's, Popular Electronics magazine had an issue with an article on building a 1" Oscilloscope. See: https://www.rfcafe.com/referenc

My Tek 576 has #349 lamps. - Perhaps they were not originals and shoehorned-in ? Paul: How many incandescent lamps, & type, are specified for the Tek 576, in the manual ? Noted: the #683 current spec.

hi Miguel, too far to ship ! thanks anyway !

The #683 have wire leads. see: https://www.amazon.com/OCSParts-Light-Bulb-Volts-100/dp/B01L76ZU8C

-- if you are going to pull the type 349's anyway, Perhaps save the old burned-out type 349 bulb sockets for a "re-do" as an LED replacement(s) ... ( I will take them ! ) 50 incandescent lamps running

Looking for a Tek 172 module "front porch" plug-in. If you have a 172 collecting dust .... Please contact me Off-List, thank you, rick

The Tek 576 incandescent lamps appear to be the Type 349 bulb. - not sure how many of these incandescent lamps are in the Tek 576 ? but, if 50 lamps (?) At 0.2A x 50 lamps = 10 A !! ar 6.3V ( ?) yikes

Anyone have a spare Tek 172 Programmable Test Fixture that they don't need ? Please contact me off-list, thank you, rick

found what I was looking for: Tek 172 Programmable Test Fixture, hiding in plain sight. https://w140.com/tekwiki/wiki/172

Looking for detailed info on the Tek 576 Programmable Fixture Option, Please contact me off-list, thank you, rick again, .....Quoting directly from the published article, regarding the Tek 576 Program

Apologies if this has already been asked, or is well known: Is there some Tektronix Option card or module that was made by Tek to operate the Tek 576 Curve Tracer via computer ? -- If so, Does anyone

Has anyone replaced the Tek 576 CT fiber optic readout display lamps, with LED's ?

Surplus, of course, has been the best place to get stuff for repairs, ... but further, to leap ahead for invent. University research labs on small budgets, high school students just getting started, a

hi, Wondering how to identify a Tek terminal that is missing both front & back ID decals. The CRT screen seems small, so perhaps 11" on the diagonal. Sort of looks like the 4012, without the stand...

hi, Apologies in advance, if Not appropriate: Is it ok to ask the experts in this forum: -- What Tek equipment & methods could be used, for the accurate measurements of Super Capacitors ? For Capacita

hi Chuck, Steven, Where can one find Corby Dawson's detailed procedures and info ? Any .pdf's research or technical papers, or Blogs ? For both the Rb cell Rejuvenation & the Optical mods to the HP 50