Hi folks,
I have a single input shunt resister-based passive preamp volume control to which I want to add two more inputs and the ability to toggle between the three sources. Space is limited, so a toggle will fit better than a rotary selector.
Two questions: first, can someone point me to a decent DPDT toggle that is suitable quality.
Second, I just don't know how to wire up the toggle to include the three sources. I don't need to have a purist single straight through source connection, so avoiding impedance issues with other source components connected.
Thanks for help....my first post here
I have a single input shunt resister-based passive preamp volume control to which I want to add two more inputs and the ability to toggle between the three sources. Space is limited, so a toggle will fit better than a rotary selector.
Two questions: first, can someone point me to a decent DPDT toggle that is suitable quality.
Second, I just don't know how to wire up the toggle to include the three sources. I don't need to have a purist single straight through source connection, so avoiding impedance issues with other source components connected.
Thanks for help....my first post here
Thanks Mooly, so am I misunderstanding what is possible with a toggle switch only? I thought it was possible to have three selectable connections with an 'on-on-on' switch.
If I have to choose a rotary device, it will need to be small enough to fit in my casing, which was originally designed for one input only.
If I have to choose a rotary device, it will need to be small enough to fit in my casing, which was originally designed for one input only.
I like to do source switching with three or four ON-OFF-ON double pole center off switches. Jacks connect to the outer terminals and the inner terminals are connected together (and to a volume control). Tape record out and tape play go on the same switch. Easy to do and can be operated in the dark.
All good fortune,
Chris
All good fortune,
Chris
on-on-on to progressively move along a row of inputs would require some form of latching at each stop position. And return to start at the next on.
The relay wiring for this will have been done, but I suspect the logic is quite complex.
It will be a case of searching until it pops up.
The relay wiring for this will have been done, but I suspect the logic is quite complex.
It will be a case of searching until it pops up.
Hey,
This switch works well and is pretty small.
M2044SS1W01-RO NKK Switches | Mouser
to wire it up, follow the diagram below.
dave
This switch works well and is pretty small.
M2044SS1W01-RO NKK Switches | Mouser
to wire it up, follow the diagram below.
dave
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