15 Mar
2005
15 Mar
'05
12:26 p.m.
Randy McLaughlin wrote:
From: "Doc Shipley" <doc at
mdrconsult.com>
I've looked at that, but I don't have access to crimpers. Would the
line noise from a soldered strip-&-splice be excessive?
By the way, both your site and Herb Johnson's have been very helpful
already. Thanks!
Looks like a standard 50-pin edge connector, yes. After reading a
little in the owner's manual, it's MFM, dual density, so worst case I
should be able to run it on an older PC-based FDC, right?
The 277 is a fast repeat fast single sided floppy drive.
The high-speed seek can be ignored but what can not be ignored is the
track location. Being a dual drive both heads move at the same time,
this can confuse some software.
Details on making a 34 to 50 pin cable can be found on my website. The Persci's also have a slew of jumpers, it is
best just to try it the
way it is.
So I've read. I also gathered that the jumpers are soldered 0-ohm
resistors, not shunt blocks. Correct?
The Persci's are very sensative, shipping often
destroys them. To ship
it you need a special cardboard shipping retainer to keep the heads from
slamming back and forth.
It shipped with the retainer in place. And the original packing, and
2 thick binders of documentation.
I wondered why he shipped it with only one insert, but if both heads
move in concert, that makes more sense.
It also uses special wheat-lamps that burn out easily.
Uhhh. Are there replacements available?
Given the 277's temperament, I suppose I also need to see if the
PerSci 1070 will drive non-PerSci drives....
Doc