DB25 (printerport) patchbays (my non patchable bending controllers here)
These Data Tranfer Switches are cheap and easy to find.
My first version is a 4-way switch with 25 Banana inputs and patchable 100K and 1M potmeters, the latter with on-off switch. As you can see the edge of a screwdriver in NOT an ideal substitute for a centre punch....
If I can find the courage to do the soldering I may disconnect two ports and solder the wires to the Banana inputs in different order, like mirrored , rotated, shifted etc.
Version 1
Version 2
The second is a 2-way switch. The port select switch is a lot smaller so there's more room in those. Only the upper 15 Banana inputs are connected to the printerport.
It has a 12 position rotary switch with two diffent inputs to the central connnector . One connects directly, the other through two insertable capacitors , a 10K potmeter momentary and "on" switch.
I'm still refining some things here. First I had the two bottom rows as in and outputs for the 5 switches. I've seen several patchbays with this option, and let me tell you, it sucks! Sure you get 5 sitchable bends using ten patch wires and inputs.
I've come to a more versatile , user friendly setup that uses less hardware . Central lug of each switch all connected together to form a buss. The "on" position lugs connect to one Banana input.
Just 5 inputs, ten bend options. I liked this, so I drilled some more holes to have a row of five momentary switches for the inputs I saved myself this way. Connected to another buss. Used the "on" switch of the rotary to connect both switch busses into a ten input buss.
The blue momentary will have to be inserted between the direct input to the rotary.
