Re: GPO TR35 No4 test meter
Commonly known as a Detector No. 4.
When I joined Post Office Telephones in 1967 some of the older members of staff were still using these. They preferred them over the new fangled Meters Multi-Range.
Used for simple fault finding on line plant and subscribers' equipment.
__________________
Graham. Forum Moderator
Reach for your meter before you reach for your soldering iron.
|