| Hi
Don't do either of the 'machine mod' suggestions!
Any professional machine will be stabilised against mains frequency and voltage so varying either would not affect the speed, certainly not doubling (or halving) it.
Wrapping tape around the capstan while messy and it would kind of work if you were transcribing speech would introduce a massive amount of wow and flutter making music unuseable (unless you want that effect!).
The BBC used to re record their archives, I can't remember how many years between revamping but they were played and 'tarted up' before being put onto new tape.
7 1/2 ips is below a professional standard. 15 is OK and good work at 30 so expect it to be poor.
Don't forger to clean the heads VERY fequently, possibly after each song as tape this old will shed or be sticky in a BIG way!
Matt S |