Melles Griot model number 05-LPM-914-065
This is a new power supply with a TTL disable function. It will operate a typical 8 to 11  inch long HeNe laser. Hook-up diagram included.

Specifications:

Input Voltage:   115 / 230 VAC, 50 to 400 Hz.
Output Voltage:  1550-1950 VDC
Output Current:  5 to 7 mA. adjustable via trim pot. preset at 6.5 mA
Trigger Voltage: >10 KV
Input Leads:      12″, 22 AWG. Flying.
Output Leads:    7″  with Alden HV connector
CDRH delay:       None
TTL function:    0 VDC = ON, 5 VDC = OFF
White wire with yellow stripe:+, White wire with black stripe:-
Dimensions:       4.25″ X 3.3″ X 1.25″ (108 x 84 x 32 mm)
Mounting holes: 0.15″ diameter  3x,  2.5″ x 2.3″ center spacing.
Warranty:           30 days from date of purchase.