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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]]. | 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]]. | ||
* [http://w140.com/kurt/ge_bd1-7.pdf |General Electric BD1 to BD7 Datasheet (PDF)] | * [http://w140.com/kurt/ge_bd1-7.pdf| General Electric BD1 to BD7 Datasheet (PDF)] | ||
* Tunnel diode switching circuits and the back diode. Service Scope [[Media:Service Scope 38 Jun 1966.pdf | No. 38, June 1966]] and [[Media:Service Scope 39 Aug 1966.pdf | No. 39, August 1966]] | * Tunnel diode switching circuits and the back diode. Service Scope [[Media:Service Scope 38 Jun 1966.pdf | No. 38, June 1966]] and [[Media:Service Scope 39 Aug 1966.pdf | No. 39, August 1966]] | ||
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