We've had good luck with Bondtronix (510) 947-2664
and Aptek (800) 363-4363. Both in N. Cal.
Stuart Wenzel, Ph.D.
Berkeley MicroInstruments, Inc. Phone: (510) 231-5710
1305 South 46th St., Bldg. 164 Fax: (510) 231-5711
Richmond, CA 94804 Pager: (510) 262-2258