My system is an Elk and Plus 1 with a Slogger Master RAM Board, Pres' AP2, AP6, AP3/4 and, at the moment, I'm building Jafa Systems' Mode 7 Adaptor. In ROM, I have Slogger's T2p4 and Pineapple Software's PCB and DIAGRAM 2. The Pineapple ROMs are for the Beeb, but both work well with the Elk with just a few differences in the keys used. PCB works in Normal (a bit on the slow side) and Turbo modes, while Diagram 2 is very limited in Normal and Turbo modes, but okay in 64K.
I have modified my Plus 1 by fitting a 25-way D-type connector in the top half of the box, above the printer socket. By fitting a short length of ribbon cable with an IDC connector to it and plugging this into the printer socket, a standard IBM PC type printer socket, a standard IBM PC type printer cable can be used to condirect to any IBM PC compatible printer. I have sent instructions on how to make this modification in case anyone else would like to try it. Much neater and more convenient than Beeb-type cables.
- Connect approx 3 inches of 26-way ribbon cable to a 26-way IDC connector. Pin 1 is marked by an inverted "V".
- Fit the 25-way D-type connector in the top half of the Plus 1's case having cut a suitable hole.
- Solder the ribbon cable to the D-type connector as in the following table:-
- Connect the IDC connector to the printer port and re-assemble the Plus 1 case.
ELECTRON IBM STYLE PLUG PIN PIN 1 --------------------------------- 1 2 --------------------------------- 19 3 --------------------------------- 2 4 --------------------------------- 19 5 --------------------------------- 3 6 --------------------------------- 20 7 --------------------------------- 4 8 --------------------------------- 20 9 --------------------------------- 5 10 --------------------------------- 21 11 --------------------------------- 6 12 --------------------------------- 21 13 --------------------------------- 7 14 --------------------------------- 22 15 --------------------------------- 8 16 --------------------------------- 22 17 --------------------------------- 9 18 --------------------------------- 23 19 --------------------------------- 10 20------------------: 21 : 22 : 23 :--- NOT CONNECTED 24 : 25 : 26------------------:
G. Peake
British Aerospace, Saudi Arabia