UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - GPO Detector No3 Does anyone have any information.

Gridiron · 15th Oct 2019, 2:24 pm

A friend has recently given me a GPO test meter which I understand from posts on the forum was known as Detector No 4, I also have a couple of very early GPO meters which are labelled GPO No2 which date back to at least the early 1920's, presumably there would have been a number 3 meter, I was wondering if anyone has any information or has one of these? I'm assuming the first GPO meter would be one of those Q & I Detectors in a wooden case.
Mike.

15th Oct 2019, 2:24 pm	#1
Gridiron Heptode Join Date: Apr 2010 Location: West Midlands, UK. Posts: 663	GPO Detector No3 Does anyone have any information. A friend has recently given me a GPO test meter which I understand from posts on the forum was known as Detector No 4, I also have a couple of very early GPO meters which are labelled GPO No2 which date back to at least the early 1920's, presumably there would have been a number 3 meter, I was wondering if anyone has any information or has one of these? I'm assuming the first GPO meter would be one of those Q & I Detectors in a wooden case. Mike.