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tunnel diodes retrace lines in curve tracer
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
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
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garp66
· #178951
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Stan Griffiths estate sale
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
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
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By
garp66
· #178556
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Slightly OT: OK Electronics tinyscope --Little CRTs Overview
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
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
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garp66
· #178007
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Slightly OT: OK Electronics tinyscope --Little CRTs Overview
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
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
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By
garp66
· #178006
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Slightly OT: OK Electronics tinyscope --Little CRTs Overview
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
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
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By
garp66
· #177959
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Tek 576 CT fiber optic readout lamps; replaced with LED's ?
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.
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.
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By
garp66
· #177951
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Wanted: Tek 172 plugin "front-porch" module
hi Miguel, too far to ship ! thanks anyway !
hi Miguel, too far to ship ! thanks anyway !
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By
garp66
· #177950
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Tek 576 CT fiber optic readout lamps; replaced with LED's ?
The #683 have wire leads. see: https://www.amazon.com/OCSParts-Light-Bulb-Volts-100/dp/B01L76ZU8C
The #683 have wire leads. see: https://www.amazon.com/OCSParts-Light-Bulb-Volts-100/dp/B01L76ZU8C
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By
garp66
· #177941
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Tek 576 CT fiber optic readout lamps; replaced with LED's ?
-- 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
-- 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
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By
garp66
· #177849
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Wanted: Tek 172 plugin "front-porch" module
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
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
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By
garp66
· #177843
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Tek 576 CT fiber optic readout lamps; replaced with LED's ?
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
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
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By
garp66
· #177841
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Wanted: Tek 576 computer control Tek module Option card & info
Anyone have a spare Tek 172 Programmable Test Fixture that they don't need ? Please contact me off-list, thank you, rick
Anyone have a spare Tek 172 Programmable Test Fixture that they don't need ? Please contact me off-list, thank you, rick
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By
garp66
· #177761
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Wanted: Tek 576 computer control Tek module Option card & info
found what I was looking for: Tek 172 Programmable Test Fixture, hiding in plain sight. https://w140.com/tekwiki/wiki/172
found what I was looking for: Tek 172 Programmable Test Fixture, hiding in plain sight. https://w140.com/tekwiki/wiki/172
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By
garp66
· #177757
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Wanted: Tek 576 computer control Tek module Option card & info
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
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
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By
garp66
· #177742
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Wanted: Tek 576 computer control Tek module Option card & info
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
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
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By
garp66
· #177734
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Tek 576 CT fiber optic readout lamps; replaced with LED's ?
Has anyone replaced the Tek 576 CT fiber optic readout display lamps, with LED's ?
Has anyone replaced the Tek 576 CT fiber optic readout display lamps, with LED's ?
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By
garp66
· #177723
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Fair Radio Sales Lima Ohio
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
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
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By
garp66
· #173981
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Tek terminal identification, unit missing ID decals on both front & back !
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, 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...
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By
garp66
· #172362
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OT: Tek equipment appropriate to measure Super Capacitors accurately ?
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, 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
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By
garp66
· #170063
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PTB 100 Ball Efratom
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
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
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By
garp66
· #169345
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