[time-nuts] HP 10811 update

Stefan Heinzmann stefan_heinzmann at gmx.de
Thu Jul 25 10:28:10 EDT 2013


paul swed wrote:
> I can't believe you found the transistor. When I pulled it out last night,
> its actually a MPSA18!!! I had not had time to look it up but figured it
> was a ebay leftover hunt. :-)
> At that price I may order 20 of them. Like the gain.
>
Toshiba used to make a transistor with even higher gain, the 
2SC3112/2SC3113/2SC3295/2SC4666 (same chip, different package). They 
discontinued it recently, however.

Cheers
Stefan



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