ORTEC 660

Dual detector bias supply

Bias power for germanium and silicon detectors and ionization chambers. Two independent channels.

Independent bias supplies: 21

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

Shutdown from detector warmup sensor
Manual reset after shutdown
Automatic overload protection

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 setting linearity	±3% of dial setting at 10–100% of full range1
Noise and ripple	<10 mV peak-to-peak; 5 Hz–50 MHz1

Measuring range

Voltage ranges per supply	0–5 kV / 0–500 V; common adjustment1

Electronics & signal

Independent bias supplies	21
Rated current per supply	0–100 µA1
Output voltage rise time, nominal	500 ms1
Bias shutdown	ORTEC / TTL / bypass1

General

Polarity per supply	Positive or negative; internally selectable1
Module width	NIM-1 (single-width)1

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

Documents

PDFDatablad (PDF)Datasheet · 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
660 Dual 5 kV Radiation Detector Bias Supply
Publisher: ORTEC (AMETEK)Product page Specifications (intro); Specifications – Performance; Specifications – Controls; Specifications – Electrical and Mechanical 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