ORTEC 542

Linear gate and stretcher

Selects analog pulses by coincidence conditions and converts them to a uniform pulse shape, with separate output-width and delay adjustment.

Linear amplitude range: +0.1…+10 V1
Output delay after peak detection: 0.5–5 µs1
Output pulse width: 0.5–5 µs1
Gate period: 0.5–5 µs1

Download product sheet (PDF)All values with references – for tender documents

Specifications checked against the manufacturer’s documents on 2026-10-16

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Overview

Nuclear power & nuclear technology Research & laboratories

Key features

Coincidence and anticoincidence
Internal or external strobe
Busy monitoring output

Specifications

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

Performance

Output delay after peak detection	0.5–5 µs1
Input-referred noise contribution	<20 µV rms1

Measuring range

Linear amplitude range	+0.1…+10 V1

Electronics & signal

Output pulse width	0.5–5 µs1
Input rise time	100 ns–10 µs1
Output rise time	300 ns1
Front output impedance	<1 Ω1
Input impedance	≈1 kΩ1

General

Gate period	0.5–5 µs1

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

Documents

PDF542 Linear Gate and StretcherDatasheet · ORTEC

Sources

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

1
542 Linear Gate and Stretcher
Publisher: ORTEC (AMETEK)Datasheet p. 2, Inputs (LINEAR); p. 2, Outputs (OUTPUT – Delay); p. 2, Outputs (OUTPUT – Width); p. 1, Controls (GATE PERIOD) … Checked 2026-10-16

ORTEC

ORTEC 276L

Low-power PMT base with preamplifier

PMT compatibility: 10-stage, 14-pin; TRW 3B14 socket (JEDEC B14-38); directly compatible with many integrated NaI-PMT assemblies
Conversion gain: Nominally 5 µV/eV with a 2 × 2 in NaI(Tl) crystal and PMT gain of 10⁶
Weight: 0.65 kg net

14 referenced values

ORTEC

ORTEC 269

PMT base for 14- and 12-stage, 20-pin photomultipliers

PMT compatibility: 14- or 12-stage, 20-pin socket (JEDEC B20-102), including Hamamatsu R1250; Philips XP2020, XP2020Q, XP2040, XP2040Q, XP2041, XP2041Q, XP2212B, XP2230B, XP2233B, XP2262B; EMI 9813K
Weight: 0.63 kg net

6 referenced values