Hi,
I want to id the 7 power transistors in an IEC centrifuge. Three of them visible here.
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Each small increment on the scale is 1 mm. The plastic case is about
15 mm wide by 20 mm high. Usually the metal cooling plate on the back of a transistor would project above the plastic. Not so here. About half the black plastic case is beneath the p.c.b. in this photo. The grey material in the photo appears to be a silicone impregnated cloth for heat transfer. The black panel above is an aluminum cooling fin and folds under the transistors.
I failed to find a match with the transistors listed here.
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Ideas? Thanks, ... Peter E.