How to demag. tape heads with bulk eraser

Thanks a lot for the super fast great answers. I called kingdom.com and and bought one for $40. I searched the archives here and didn't find anything on demagnetizers. I've played about 25 hours worth of tape since I bought the machine and have been noticing that it is getting more difficult to thread the tape. I'm guessing that a magnetic field is pulling on the tape and making it harder to handle. I have cleaned the heads and the moving parts several times. It's like maintaining an old car! I would also like to add that I am having a blast playing playing with reel to reel.

Much to my dismay I bought the one from kingdom.com before I saw sdcampbell's generous offer. My actually sent my previous post without seeing sdcampbell's. Sorry about that.

Hey, I'm sure the one from kingdom.com will work fine too and it's not really a ton of money when you think about it.

I know what you mean about having a blast with reel to reel. I've bought 3 decks over the past 6 months, two sweet Teacs and a nice Revox A77. I have a decent prerecorded tape collection and I've been scoffing up a few here and there on ebay. Some of those old recordings/performances are really a treat and the sound quality rivals the best sources currently available for cheap. Hey, so what if you have to clean the heads now and then, and go through "all that hassle" of threading the tape?! Certainly it's no more trouble than vinyl's maintenance rituals and the price of admission is even sweeter. I don't know anyone that's broken a head while threading a tape, but I do know of many instances of stylus/cartridge destruction due to a momentary bobble. :)