Microvoltmeter and micro-microammeter

D.C. valve microvoltmeter and micro-microammeter model 425A no. G201 01361, by Hewlett Packard, Boeblingen, West Germany, complete with mains lead, input lead and probe

Details

Category:
Electricity and Magnetism
Object Number:
1987-314
type:
voltmeter
credit:
Thorn EMI