Anybody know what these are for?

[Tony Duell]

> 
> I have a pair of Pertec-branded circuit boards,
> 14" x 16"x, marked as follows:
> 
> 	PE WRITE
> 	PC86V1
> 	101387-01K
> 	101388J
> 
> 	PE READ
> 	101389-01J1
> 	101383H1

My  guess is that 'PE' is 'Phase Encoding'. IIRC that's the standard used 
for 1600 bpi tapes (800 bpi being NRZ). 

So yes, I think they come from a 9-track tape drive or 
controller/formatter. As to which particular drive, I haven't a clue.

-tony