BD4
The BD-4, Tek part number 152-0070-00, is a 0.1 mA Germanium back diode. It is used in the HF-sync circuit of the 7S14 and trigger circuit of the late 5T1A.
Links
- Tunnel diode switching circuits and the back diode. Service Scope No. 38, June 1966 and No. 39, August 1966
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GE back diodes
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BD1 to BD7 back diode data from 1977 GE semiconductor data book
