|
Spray some de-ox-id under the edge that faces the board to clean the pots.
Protip: the diode packages on most deltagun sets even into the 70's was selenium, and can go bad. Replace with a few 1n4007s and convergence may improve, on the convergence board the caps may be worth replacing and the resistors are worth checking. The position of neck hardware can also screw with the range of the dynamic convergence.
|