Working on something similar myself for use with the DC output on a Koma Field kit. I’d like to be able to use the machine to play both cassette tape loops and unmodified cassettes. The difference being that for the loops, the capstan will be doing all the work while, for the regular cassettes, the spindle and the captstan will work together.
With that in mind, I am looking to use a modification that will affect the entire motorised circuit. From my research so far, this technique seems to be the way to go, however one thing I am insure of is, if I use this method, will the cv supplied control the entire walkman or will i also need to power it with batteries?
Any advice or findings would be great!
Thanks