Joan:

Took a look at the schematic diagram (page 2-107) and the requirements are
pretty basic. A 2N2222 or 2N3904 would probably do fine most of the time.
You can even look at the TIP series or whatever you can get your hands on.

Nominal voltages show 10 ma through one and 46 ma through the other
transistor. Worst case in a shorted output would draw 1.28 A. Input is
from a +5 V regulator so voltage rating is a non-issue.

Hope that helps.....
73 de Woody AK2F

"asta" wrote in message
.. .
hi!

i am trying to repair an old drake tr7 receiver, and found out, one of the
biasing transistors EP 487 in the power amplifier module was missing.
i cannot find this transistor anywhere on the net...:-(

are there any replacements?

cheers,

asta