What diameter of wire hole ? - need any ribbon ones - have them.
I think I have several like you mention from industrial equipment use.

I have a 3 phase, 50 amp RF line filter that I ran out of room to use.
Have AT NIC and modern NIC , various SIMS. e.g. HP printers and old pc's.

Let me know. Should be easy to get my hands on them.

Martin

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
"Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer
TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Originator & Charter Founder
IHMSA and NRA Metallic Silhouette maker & member. http://lufkinced.com/

On 9/3/2010 10:22 AM, Ignoramus24760 wrote:
On 2010-08-30, Joseph wrote:
In articleYuOdnSLQTJ6Q2ObRnZ2dnUVZ_sqdnZ2d@giganews. com,
Jon wrote:

Ignoramus5734 wrote:
That was am AMC 30A8 amplifier, revision T.

The chips on them mostly do not have markings, this one was a small
one in the middle of the motherboard.

I really like the drives, their simplicity, cost and support from
AMC. I do not know if I can guess the cause. But, possibly,
interference again is to blame.

VERY unlikely.

Agree.


You mentioned ferrite cores to place on these cables. Would you
suggest any particular Digikey part number?

Sorry, I really don't have a part number. You might check old computer
cables for those
bulges in them, those are big ferrite rings for noise isolation. You
want to run both
motor cables through the same core, so they are not exposed to the motor
current
(the current in the two wires cancels out).

The split-sleeve emi-filter chokes are what Iggy seeks. Here is an example:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=240-2131-ND


However, these chokes really are not that effective compared to real shielding.
I would first shield the motor power leads, as they are very high power.

Joe, I bought those rings. I will shield the wires going to the big
terminal block from the drives, (and ground the shield) and would put
the rings on the wires going out of the terminal block to the motors.

i