Hi friends,
As a part of my active summing mixer project, i am a expanding this summing device with the LCR assign switch designed by New York Dave. (Balanced mixing network pdf)
To build that switch first i numbered each pin in the schematic from top to bottom as 1 to 12.
Then i build the resistors and wires arrangement in a breadboard, so to end with an input (+ -) , four 4k32 resistors, and 12 wires that go to the Lorlin switch connected to the same number pins 1 to 12
In the Lorlin 4P3T, i connected the four central pins to the 22k balanced summing network this way:
A + 1 L
B - 4 L
C + 7 L
D - 10 L
The twelve lorlin pins i understood they are arranged this way:
1 L 4 L 7 L 10 L
2 C 5 C 8 C 11 C
3 R 6 R 9 R 12 R
When I turn the pot to the right, much of the volume goes to the right , but the left side still can be heard a bit.
At center the volume rises more, as expected.
At left position I can’t hear more volume than in right position.
I think there is something wrong assigned or the central pins assignement is not correct.
¿Maybe 8 R and 12 R?
Also I have to say that in my active summing mixer I have a little imbalance between L and R channels.
Thank you for your help!
JAY X
As a part of my active summing mixer project, i am a expanding this summing device with the LCR assign switch designed by New York Dave. (Balanced mixing network pdf)
To build that switch first i numbered each pin in the schematic from top to bottom as 1 to 12.
Then i build the resistors and wires arrangement in a breadboard, so to end with an input (+ -) , four 4k32 resistors, and 12 wires that go to the Lorlin switch connected to the same number pins 1 to 12
In the Lorlin 4P3T, i connected the four central pins to the 22k balanced summing network this way:
A + 1 L
B - 4 L
C + 7 L
D - 10 L
The twelve lorlin pins i understood they are arranged this way:
1 L 4 L 7 L 10 L
2 C 5 C 8 C 11 C
3 R 6 R 9 R 12 R
When I turn the pot to the right, much of the volume goes to the right , but the left side still can be heard a bit.
At center the volume rises more, as expected.
At left position I can’t hear more volume than in right position.
I think there is something wrong assigned or the central pins assignement is not correct.
¿Maybe 8 R and 12 R?
Also I have to say that in my active summing mixer I have a little imbalance between L and R channels.
Thank you for your help!
JAY X