[sebhc] Diskette termination
Carroll Waddell
carrollwaddell at sc.rr.com
Tue May 22 14:11:39 CDT 2007
Paul A. Pennington wrote:
> Carroll said:
>
>> I have the drive manuals for the Siemens FD100 diskette drive. It
>> (along with the schematic) shows the termination resistor pack with
>> 330 ohms going to +5 and 220 going to ground. However the termination
>> resistor packs that were in the drives when I bought them on ebay are
>> 150ohms to both +5 and ground.
>> I haven't been able to find any 330/220 resistor packs in any catalog
>> I have. Does anyone know which is correct?
>
>
> The 150 ohm packs are for the more common Tandon floppies.
> Somebody switched them. I have several of the 220/330 packs in my
> parts box and would be glad to mail you one. Send your snail mail
> address off-list.
>
> Part numbers on mine are:
>
> Beckman 899-5 R220/330
> CTS 760-5-R220/330
> A-B 314E221331
> Bourns 4114R-003-221/331
> Dale MDP-1405-221/331G
>
> Notice a pattern here? :-)
>
> Paul Pennington
> Augusta, Georgia
>
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>
Thanks a bunch Paul, I will be more than happy to pay you for them. If
you have enough, I'd like to have 2. If not, 1 would be greatly
appreciated. My address is
Dr. Carroll Waddell
2795 Raccoon Road
Dalzell, SC 29040
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