[Test-Equipment] Need transistor for HP 11710B

[Ron Youvan]

   Bill Abate wrote:

> I need a replacement transistor for the A1 converter amplifier board for this down converter.  It is
> Q1 an NPN, TO-18 case.  It has an in-house number and the parts manual only lists it as a silicon,
> 360 mw.  I substituted a 2N2222A and it works but the output is down about 10db.  Anyone know of a
> better sub?

   I would try a 2N3646 next.  Then the NPN of the 2N4401 -2N4403 pair would be my next attempt.
-- 
    73 Ron KA4INM - All E-mail sent to this address shall linger in the Google cloud forever!