I just found a box of 9x 1N256 NOS in my stuff. I believe they are silicon rectifier diodes/Thyristors. They're really nice looking and have all the mica nuts and accessories. General Instruments JAKK 1958. I was thinking a power supply? What do you think?
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An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
You'll have to open the links in a new tab. Not sure why clicking doesn't work..
Milan looked them up, to be more precise:
SI rectifier
stud-mount
570V/0.2A
eq. BYX38/600
(source: VRT-ECA 97)
Although when I did a search I found 600V/2A
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Your first spec is correct =570V/0. 2 amp-stud mount , made by Solid State Inc /Texas Instruments but 30 volt difference by other (later ) manufacturers is not unusual .
Talon Electronics of the Commonwealth of Virginia has two at $3.70 ( no express shipping due to Covid-19 .
Power supply ? in practical terms not for me but will obviously look nice if you fit them in a row and shine a spotlight on them.
Talon Electronics of the Commonwealth of Virginia has two at $3.70 ( no express shipping due to Covid-19 .
Power supply ? in practical terms not for me but will obviously look nice if you fit them in a row and shine a spotlight on them.
I would call then EOL End of Life--not to be used in any new designs. Save them as replacement parts for vintage equipment that uses them. A 1N4007 diode is much more capable, and it's smaller & way cheaper.
How about a donation to a radio / TV / computer history museum. If you could find the right place they might even have a working piece that uses them.😉 Seems like those beauties would have been in something very high-end for the time ..
Good for your Karma !?
Cheers
Good for your Karma !?
Cheers
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Considering they are from 1958, are rather unusual and come with the original package, I think Rick is right and an electronics museum would be the most appropriate destination. Probably a computer museum or a museum of military equipment, I don't think they were ever used in broadcast radio or television receivers.
By the way, I do know of an audio use of SCRs: the former Dutch broadcasting organization NOS used to use them for switching between sources in large radio studio mixing decks. When you pressed a source selection button, for selecting what sound you wanted to hear through the studio monitors for example, that triggered one SCR and switched off a bunch of other SCRs.
By the way, I do know of an audio use of SCRs: the former Dutch broadcasting organization NOS used to use them for switching between sources in large radio studio mixing decks. When you pressed a source selection button, for selecting what sound you wanted to hear through the studio monitors for example, that triggered one SCR and switched off a bunch of other SCRs.