There is a 12 volt electric motor with a vacuum pump that is relativily inexpensive (200.00 or so) that can power all your gyros. I will try to get info on it but believe that Glenda McAlwee knows where to get them. They are automotive but easily adapted for a reliable vacuum source. Shell be here tomorrow and I'll ask her and let you know. Bill
- KR> Vacuum Stephen and Janet Henderson
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