I covered this in alt.radio.broadcasting....but I'll go into detail here.

You want a device which is designed to provide the appropriate amount of
magnetic flux to the head without overdriving the amplifier that it's
connected to. Too much and you'll smoke a very low power device, too little
and you won't do the job on the head. Thus, you need to get a head
demagnetiser. They're not expensive. True, you won't be using as much as
you would the tape machine you're maintaining, but it's a good investment,
since your recordings (I would assume) are worth far more than the $20-30 a
demagnetiser will set you back. If you're really strapped, perhaps you
could borrow one from someone who has more resources, or maybe you could all
buy one you could share, since you won't need it but for 10 seconds every
100 hours...surely under those circumstances there's no need to actually own
one solely on your own.

--
For direct replies, take out the contents between the hyphens. -Really!-


"Foxsrus1" wrote in message
...
any engineers with hints for me...or do i need to buy something to do it?
thanks