UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - BRY39

Ed_Dinning · 12th Nov 2017, 4:49 pm

Hi Gents, Kalee's note about the PNP transistors with high Vbe is valid, the only ones I know are the BCY30 family where it is about 30V.
These were used with ZTX61 (NPN) devices in timers for professional gear pre BRY39's being available.
This combination went through a lot of testing and proved reliable.

Ed

12th Nov 2017, 4:49 pm	#17
Ed_Dinning Dekatron Join Date: Jan 2004 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 8,195	Re: BRY39 - Solid state switches. Hi Gents, Kalee's note about the PNP transistors with high Vbe is valid, the only ones I know are the BCY30 family where it is about 30V. These were used with ZTX61 (NPN) devices in timers for professional gear pre BRY39's being available. This combination went through a lot of testing and proved reliable. Ed