Dekatrons formed the first generation of integral vacuum tube counter tubes. The basic topology was invented by Ericsson for telecom applications (rotary dial sensing, for e.g.) and soon various tube manufacturers offered similar units. Typical applications: test equipment (frequency counters, digital voltmeters), and in computer systems.
Manufacturer
Raytheon Manufacturing Company
Place Manufactured
U.S.
Identifying Numbers
Model number
CK4676
Other number
34 S18
Small numbers printed to the right of the model number
