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G8MNY  > IBM      16.09.19 07:44z 48 Lines 1202 Bytes #999 (0) @ WW
BID : 21819_GB7CIP
Subj: Diskette Drive Connector
Path: HB9ON<IW2OHX<IQ2LB<F1OYP<ZL2BAU<N9PMO<JE7YGF<GB7CIP
Sent: 190916/0732Z @:GB7CIP.#32.GBR.EURO #:21819 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : IBM@WW

34 Pin connector   Diskette/Fixed Disk
                      DRV   CRD
SIGNAL DESCRIPTION    PIN DIRECTION
Ground - Odd Numbers  1-33  -
Reduced Write          2    <
Reserved               4    -
Drive Select 3         6    <
Index                  8    >
Drive Select 0        10    <
Drive Select 1        12    <
Drive Select 2        14    <
Motor On              16    <
Direction Select      18    <
Step                  20    <
Write Data            22    <
Write Gate            24    <
Track 00              26    >
Write Protect         28    >
Read Data             30    >
Side 1 Select         32    <
Diskette Change       34    >

The d/drive is a Citezen OPDA-12A.
The Atari has a 14 pin socket as follows...
SIGNAL DESCRIPTION   PIN
Read data             1
Side 0 select         2
Logic ground          3
Index pulse           4
Drive 0 select        5
Drive 1 select        6
Logic ground          7
Motor on              8
Direction in          9
Step                 10
Write data           11
Write gate           12
Track 00             13
Write protect.       14


Why Don't U send an interesting bul?

73 De John, G8MNY @ GB7CIP


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