this page is updated regularly
last update: 2 Oct 2017
test instruments projects
project index
BH570A - 10 MHz TCXO frequency standard with digital clock
BH571A - Time signals and time marks generator
BH1410 - Variable Gain RF Amplifier
BH3368A - multipurpose protocol converter
BH3801A - GPS frequency standard 10 MHz
BH4114A - a rf power dummy last 50Ω / 100 Watt, usable over 3000 MHz
BH4534A - low cost 5 ½-digits frequency counter
BH4534B - low cost 9 ½-digits frequency counter up to 135 MHz
BH5321A - 20-keys Programmable Keyboard
BH6516 - high voltage calibrator - a small regulated power supply from 450 Volt to 10 kV
BH6520B - embedded controller for power supplies
BH9000A - Multiple Output DC Power Supply
BH9914A - GPIB embedded controler
BH12810 - microwave prescaler with ratio 1:10 or 1:20 or 1:40
test instruments services
services index
damaged OCXO Marconi 2022D
various OCXO tests
various VCO tests
Liu Hui analog panel frequency meter SM-72
digital multimeters tests - AC measurement
digital multimeters tests - DC measurement
links to external WEB sites
external links
Bohemia House UK Ltd , provides full contract electronic design and manufacturing services to OEM's
Computer Asylum, a vintage collection of computers and test instruments
A simple photo galery software created in PHP and MySQL. It contains some photos from my trips.
Some our photos on Pinterest