13 Apr
2007
13 Apr
'07
2:07 a.m.
From: ard at p850ug1.demon.co.uk (Tony Duell)
Hi
Tony is most likely right but the interface is compatible w/ ST506, I'm
currently
running a ST251 as a 10Meg drive on the TRS-80 controller ( not
in a TRS-80 invironment ).
As I stated, the WD1000 will work fine but needs a simple address
decoder. It may not work with the lights and switches on the cabinet
but it will work with the drive.
If you like, I can find a seller ( not ebay ) that has several WD1000's
for sale. I have no idea the price but they are suppose to be working.
Dwight
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Hi all --
Recently picked up a TRS-80 "Eight Meg Disk System" (model 26-4151) and
the associated interface board, with the intent of hooking this up to my
TRS-80 Model 16.
On further investigation, it appears that the 26-4151 is a Secondary
drive, which makes me curious as to whether this effort is going to be
ultimately fruitless. So, without further ado, here's the questions I
have:
1. Is it possible to get this secondary drive working as a primary, or
am I up a creek without having a primary drive (or extra magic hardware
in the drive I have.)
I believe you've got problems... The host interface board is pretty
simple, I think, just buffers and an address decoder. It talks (8 bit
parallel data bus, register select lines, etc) to the controller board
mounted inside the primary drive cabinet. This controller talks to the
drives by an interface somewhat similar to ST506 (I don't think it _is_
ST506, though.), in that there's a control cable that links from the
controller to all the drives and a separate data cable from the
controller to each drive.
The controller board can handle up to 4 drives, the one mountedin the
primary cabinet and up to 3 more secondaries
Without the cotnroller board (which is, IIRC, similar to a Western
Digital thing), you are not going to get it working.
-tony