identify the transistor

ZXNet echo conference «hardware.zx»

From Kirill Frolov To All 31 May 2003

Soviet transistors: +---------------------+ | _ | | (_)__ | | __( )__ | | / | | | | | | | | | | ____ / | | (_/ _) _ | | (_) | | | | 4 G V O | | 7 V V 7 | | 4 B A 4 | | | +---------------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (metal radiator on the reverse side) Different transistors have different inscriptions: 4GVO, 7BB7, 4BA4. What do the dots (indentations) in the corners mean? Maybe these are letters release time, and do the dots indicate the type of transistor? I wanted I would like to know what kind of encoding this is. -- [ZX]

From Dmitry Lomov To Kirill Frolov 1 June 2003

Hello, Kirill! Once, Sat May 31 2003 03:28, Kirill Frolov wrote to All: KF> Soviet transistors: KF> | | KF> | 4 G V O | KF> | 7 V V 7 | KF> | 4 B A 4 | KT814G,817V,814B All the best. Dmitry. [ZX] [Quake]