PL 5000 flat band filter

[marcok]

The system works .
Tested with a AKG studio monitor .
The value of the pot is not critical .
The behavior is always the same :
Mono : 8 o' clock
Transition from mono to stereo ( approx . from 9 to 11 o' clock )
After 11 : full stereo
Tested with a 10 K , 100 K pots and some resistors.
I have used 100 K because a friend of mine gave me a PL 700 II 100 k linear pot with the correct d shaft .

Ciao
Marco

 

[nakdoc]

The pot does need to be linear, not log or audio taper.

 

[marcok]

I just finished the tests and I have obtained the best result adding a 27 kOhm in parallel the 100 k linear pot ,
to have a 22 k pot . ( approx .)
Furthermore I replaced the fuse with 0.5 A ( AGC ) instead 1A , because I replace the tranformer
with a 230 V primary .
Ciao
marco