You definitely need BSV52 transistors and 4.7 kOhm resistors for this cable, different parts may make the cable inoperable.
On circuit diagrams, plugs are displayed as viewed from the back side, the solder side. Chips are displayed as viewed from above; also, see the small semicircular cut for finding the correct orientation. When in doubt, see the corresponding description on the legend page.
You need the following parts to build this cable:
One solderable 6-pin male DIN plug (Commodore serial plug)
One solderable 25-pin male plug (PC parallel plug)
Four BSV52 transistors
Four SMD 1206-style 4.7 kOhm resistors
A shielded 4-wire or unshielded 5-wire cable of, preferably, at most 2 meters
Step 1. Solder one end of the cable onto the DIN plug.
Step 2. Solder those wires, that don't go through an amplifier, on the other end of the cable onto the parallel plug. These include the following connections:
|DIN plug|| Parallel plug |
|2, GND||18-25, GND |
|3, ATN|| 13, Select |
|4, CLK|| 12, PaperEnd|
|5, DATA|| 10, Ack |
|6, RESET|| 11, Busy |
Step 3. Build the amplifier bridges, consisting of one transistor and one resistor each, between the appropriate pins of the parallel plug. These include the following connections:
|Parallel plug|| Parallel plug |
|13, Select|| 1, Strobe |
|12, PaperEnd|| 14, AutoFeed|
|11, Busy|| 17, SelectIn|
|10, Ack|| 16, Init |
The collector of each transistor should be pointing towards the pin in the left column of the table. The base of each transistor should be connected to one side of the resistor; the other side of each resistor should be connected to the pin in the right column of the table. The emitters of the transistors should be connected together to the common ground, the GND line.
You can find the description of all parts used on the diagrams at the legend page.
Copyright and license |
Blog page | Recent updates |
(This page best viewed with any browser)