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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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14th Apr 2021, 6:45 am | #41 | |
Dekatron
Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
Posts: 7,637
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Re: HP 333A Distortion meter - opinions?
Quote:
I have a small stash of vintage LDR's and photocells from a shut down electronics shop if anyone's after any. Andy.
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14th Apr 2021, 7:08 am | #42 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 4,941
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Re: HP 333A Distortion meter - opinions?
Back when I was working with lasers, I got into generating 16um wavelength coherent light.
The detector was mercury-cadmium-telluride cooled to 77K, and the windows were KRS-5 (Thallium bromo-iodide). A real smorgasbord of nasty bits of the periodic table. I'm amazed that it seems you can still buy both. Windows from Crystran in the UK and detectors from Judson in the US. Craig |