⭕ MMR Technologies Variable Temperature Micro Probe System VTMP with a MKS Model 358 temperature controller, a Varian Turbo V 81 AG Rack Controller with the Turbo V 81M Turbo Pump, 1/4 Rack, and a MMR model F2105 Reversible GAS filter-dryer. System pulled from Working environment.

MMRs Variable Temperature Micro Probe Systems, VTMP, (or Low Temperature Micro Probe Systems, LTMP) allow the user to probe devices mounted on the cold stage of a micro refrigerator. Each manipulator allows the corresponding probe to be positioned anywhere on a 10 mm x 12 mm sample to a precision of 50 microns. The chamber can be supplied with from one to seven probes, VTMP-1 to VTMP-7. The chamber in photos below is a five-probe system. MMRs Variable Temperature Micro Probe Vacuum Chamber houses the micro miniature refrigerator and micromanipulators that enable probing of devices mounted on the cold stage of the refrigerator. Each probe can be positioned anywhere on a 10 mm x 12 mm sample to a precision of 50 microns. MMRs Micro Probe Vacuum Chamber can be supplied with from one to seven probes. The system photo shows a four-probe chamber. The drawing illustrates a seven-probe chamber.