Phillips Scientific 417 NIM Pocket Pulser

The NIM pocket pulser is a compact, lightweight battery operated pulser generator. It provides a convenient and portable way of simulating fast negative photomultiplier pulses or NIM logic pulses, to easily check cables and electronics in the laboratory or remote experimental sites. The model 417 generates a negative pulse resembling a photomultiplier with the risetime of 1.5 nsec and width of 6 nSec at a 10 KHz rate. An output is present when a load of 10K ohms or less is connected. With no load the pulser goes to a standby condition with a battery life in excess of three years. The fully compatible fast NIM output is typically -16 mA (-800 mVolts across 50 ohms), with no DC offset present. The current switching output will not be damaged when testing shorted cables.

Output rise and falltimes: Typically 1.5 nSec Risetime, 5 nSec Falltime.
Repetition Rate: Typically 10 KHz.
Amplitude: Typically -800 mVolts for resistive loads of 50 ohms to 10K ohms.
Connector type: LEMO, female. Battery Life: Over 1000 hours for continuous use. Over three years for standby (no load).
Battery Type: 3 Volt Lithium coin battery; comes with Panasonic number BR2325 or BR2320H. The Radio Shack equivalent part number is CR2320H (catalog no. 23-163).
Dimensions: 1.375" x 1.250" x .675, (3.5cm x 3.18 cm x 1.72 cm).
Care and Service: No serviceable parts other than battery replacement; the positive side of the battery faces out.