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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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19th Nov 2017, 6:34 pm | #1 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,853
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TEST SET PORTABLE No2 MK.11
Just acquired this wee gem of a WD multimeter yesterday, 6" x 4.25" x 3". Sturdy Bakelite case with a rear battery compartment for a 12V dry battery.
Inside the front lid is a black etched paxolin sheet with the instructions & a circuit diagram. ( A sod to read, and photograph). Initial tests show it to be jolly accurate DC Volts, mA, & Ohms - wise. Full title is as shown above. Moulded into the inside of the rear battery cover & casing is :- B.P.L. LTD 1941 On the meter's scale plate is :- BALDWIN INSTRUMENTS CO. LTD No 10615 1942. Written in white on the inside of the rear cover is :- Z4 WY 3253 According to Grace's Guide back in 1947 Baldwins made precision test equipment. I've had a shufti at the VMARS huge document archive list, but couldn't find anything specific. Also have done a Google trawl, but again - nowt. The circuit diagram tells me that the 12V battery is a :- BATTERY DRY, REFILL 8CELL No1 MK1. Any help or advice most welcome, please. Regards, David |
19th Nov 2017, 9:11 pm | #2 |
Dekatron
Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,107
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Re: TEST SET PORTABLE No2 MK.11
I saw that beast on ebay, very nice. Can't be too many of them about.
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19th Nov 2017, 10:02 pm | #3 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,853
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Re: TEST SET PORTABLE No2 MK.11
This wasn't an eBay purchase - found it in a local collectables shop.
My wife, a keen photographer, has managed a better macro picture than my effort, of the instructions & circuit diagram. Regards, David |