28 May
2006
28 May
'06
2:06 a.m.
All:
Does anyone know the specs on the resistor terminator used on
the Tandon TM100 floppy drives? It's a 16-pin device but the Tandon manual
doesn't specify as far as I can see the value and configuration of the
terminator pack. I think it's 150 ohms but I don't know for sure.
Thanks!
Rich
Rich Cini
Collector of classic computers
Lead engineer, Altair32 Emulator
Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/>
http://highgate.comm.sfu.ca/~rcini/classiccmp/
http://www.altair32.com/
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28 May
28 May
2:30 a.m.
On 5/27/2006 at 10:06 PM Richard A. Cini wrote:
Does anyone know the specs on the resistor
terminator used on
the Tandon TM100 floppy drives? It's a 16-pin device but the Tandon manual
doesn't specify as far as I can see the value and configuration of the
terminator pack. I think it's 150 ohms but I don't know for sure.
Yup--the pack on the drive I pulled off the shelf (well, actually a
TM-100M) is labeled 16-1-151 and a quick check with an ohmmeter shows that
it's basically 8 150 ohm resistors between pins 1-16, 2-15, etc.
I'm not sure if I still have them, but I think I may still have the OEM
docs for the drive, if you run into trouble. All of mine have a little
paddle board plugged into the main board that provides the READY signal.
Cheers,
Chuck
3:09 a.m.
Richard A. Cini wrote:
All:
Does anyone know the specs on the resistor terminator used on
the Tandon TM100 floppy drives? It's a 16-pin device but the Tandon manual
doesn't specify as far as I can see the value and configuration of the
terminator pack. I think it's 150 ohms but I don't know for sure.
Heh heh heh... one of the manuals in my "up for grabs" pile
(already spoken for)
Schematic shows RP1 as 150 ohms. Appears to be a DIP16
with 8 discrete devices in it (i.e. pins 1&16 are one such
device, 2&15 another, etc.)
6800
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