macdude
Active Member
For years I've had this unit and was very unimpressed with it's fast forward performance. Recently, while working on it, I noticed the FF switch enables a second winding in the motor with a 47ohm current limiting resistor. I've seen schematics that show both a 47 ohm and a 33 ohm resistor in this position. Out of curiosity I switched in a 33 ohm. Fast Forward was greatly improved. Before you hardly noticed an RPM change. Now it seems to work as it should. Faster, yet not incredibly fast (typical of 8 track fast forward modes). Just a note I thought I'd share. The resistor is rated for 2 watts. This applies to the 13.2VDC motor with red/yellow/blue leads. The yellow lead is the FF winding.