Re: Tek 485 - does anyone recognise these 485 power supply transistor markings?


On Mon, Oct 8, 2018 at 05:37 AM, Lorenzo wrote:

it's a Motorola TO-126 package marked B428 & T0324. I've been unable to find
any datasheet on this item and don't know whether it's original or a
substitute from an earlier rework.
T0324 actually means 151-0324-00 so it's the right one for S/N B143850 and up.
I'll bet the B in B428 is an 8 and if so 8428 is a date code.

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