Products > Test Equipment
Test Equipment Anonymous (TEA) group therapy thread
tggzzz:
--- Quote from: mnementh on May 15, 2018, 01:32:12 pm ---
--- Quote from: tggzzz on May 15, 2018, 09:48:54 am ---
--- Quote from: Specmaster on May 15, 2018, 08:16:50 am ---Heads everyone, TTi TGP110's are back in stock again and they have 18 in cream and 19 in grey.
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I'm not really sure why I would want a pulse generator; any of the pulses I would want would be more conveniently generated by a pattern generator.
Having said that, I recently picked a Tek 115 up for £5, and that does one thing a pattern generator won't: have (independently) variable rise and fall times. Mind you, neither does that TTI.
The Tek 115 is remarkably versatile, being able to generate double pulse and, with an external signal triggered bursts. The TTI doesn't look like it does that either.
Example, with equal rise/fall times:
Ob porn: the front panel showing rise and fall time controls, and one interior shot showing old-school wiring looks and, if you look closely on the left, 863pF, 908pF and 9.85nF capacitors.
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Oh, that is quite delicious... has much of the same "precision analog built for the space program" feel as my old 454... also would be a good module (if collected together with a dozen of its brothers) for analog computing or synthesizer stacks.
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Actually, it is a module. If you look at the lower left front panel you will see the single screw securing it in its slide-in housing. Took me a while to figure out that I didn't need to remove panels to get at the innards, doh.
Much more detailed porn here: https://www.flickr.com/photos/anachrocomputer/albums/72157690644170820
Keep an eye out for the two hidden tunnel diodes and the roll of solder. And the gold, of course.
Specmaster:
That sure is a nice piece of kit, so much porn to look at and I love the nice touch to include a small coil of silver solder, doubt that you'd get that sort of attention to detail and thoughtfulness today. :-+
GerryBags:
I'm willing to bet the guys who worked at Tek knew they had one of the best jobs in the world back in the 60's, but i wonder i they would have believed someone who told them that what they were producing would be as admired and sought after as they are, nearly two decades into the 21st Century?
Beautiful stuff! :-+
Cerebus:
--- Quote from: Specmaster on May 15, 2018, 04:49:16 pm ---That sure is a nice piece of kit, so much porn to look at and I love the nice touch to include a small coil of silver solder, doubt that you'd get that sort of attention to detail and thoughtfulness today. :-+
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Tektronix often included solder because it was something a bit out of the ordinary that had to be used to meet the instrument's specifications, or so as not to destroy the plating on a particular component, or even the whole component.
With 100 MHz scopes a cheap commonplace nowadays it's easy to forget that many Tektronix instruments (with modest specification in modern terms) were on the bleeding edge of technology in their day and Tek indulged in all sorts of tricks to squeeze the last drop of performance out of the components and materials they had available. If that meant using non-standard solders for some joints then that's what they did, and as they expected that, for routine repairs, you'd want to fix things yourself they included some with the instrument.
bd139:
Some insight into how it's done:
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