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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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2nd May 2019, 7:05 pm | #1 |
Banned
Join Date: Dec 2013
Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
Posts: 3,897
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Newmarket Never made germanium or silicon diodes?
According to those who know, the Newmarket Transistor Company never produced diodes.
See http://www.wylie.org.uk/technology/s.../Newmarket.htm In fact they advised the use of NKT 278 transistors as diodes. So what then is NKT 449? It's a metal button diode about 20mm in diameter with 2 pins on the back, one marked with a red dot. A rectifier diode used in the SRX 25 Dynatron chassis for HT- supply. |
2nd May 2019, 7:49 pm | #2 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,998
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Re: Newmarket Never made germanium or silicon diodes?
The americanradiohistory site has several issues of Practical Wireless in which there are ads for that.
In the 1960s there was a lot of 'rebranding' going on in the semiconductor industry just as also happened in the valve-industry: I can easily imagine that Newmarket could have 'bought-in' and rebranded devices from another manufacturer [ASM? Lucas Industries?] to fill a perceived gap in their component range. |