Ericsson chips, Camtronics driver

Does anyone know of a US retail source
for the Ericsson PBD3517 and PBL3776
chips used in Dan Mausch's driver board?

I'm having trouble getting mine going,
so I presume I've fried some parts. If
I'm going to be able to count on this
driver, I'll need spares. One axis used
to work well, but I've had to replace
the 7805 twice, so I added a heat sink
and 1A fuse in +5v circuit. How much
should it really be drawing?

The IRF9Z24 and IRFZ34 Mosfets are about
.89 ea in Digikey P232. Does anyone know
how to test them in circuit? I have 5A
breakers in the three +36V lines, but I
haven't shunted them through the motor
connectors yet; Does it really blow them
out if no motor is being driven?

I'm intending to switch the main fan
through a temp sensor once I'm running
any big amps, and will implement the
mod's to shield the signal lines and
replace the 0R1 Ohmites once I'm driving
through the Parallel port. What kind of
non-inductive resistors am I looking
for?

Thanks in advance- it's great to have
this forum available, as I'm new to
electronics and quite on my own in this
little one horse town...

Roger Brower rbrower@...