ISI M-7

Above: codename Smurf before I overhauled it. In the above unit it has a lot of rust and other problems

Diffusion pump

Dataplate

Ultimate Vacuum: x10-6 mmHg 10E-6 torr Fore Pressure 3x10-1 mmHg 100 mTorr H. Power 100/0.35KW 100VAC 3.5 A Pump Speed: 100 L/sec Amount of Oil: 40cc No: 790123 TOKYO VACUUM MACHINERY Co. Ltd. TOKYO JAPAN

Trying to figure out cooling. Options:

• • New Cole Parmer peristaltic pump w/ LS-15 tubing: 1L/min max
  • Warms up tubing at high speeds
  • DudaDiesel pump: min/max?
  • Too much? any chance I could break something?
  • Small pump
  • Test?

Chilling options

• • FTC-350A from De Anza flea market
  • Early tests show that it might not necessarily work: outlet is not any colder than inlet
  • Large crycooler
  • Works
  • High current draw
  • -100C: potential to freeze water by accident