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#1
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19 Set Control Unit Batteries
I’m in the process of restoring the control unit for my 19 set. Are the batteries pictured 1.5v, and if so, can anyone direct me to where I can find proper period looking replacements?
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V/R James D. Teel II Edmond, Oklahoma Retired Police Sergeant/Bomb Tech 1943 Willys MB/ITM jeep 1942 SS Cars No1Mk1 LtWt trailer |
#2
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Hi James,
Yes, they are "Cells, Dry, X, Mk.II" originally, those are the post-WW2 cardboard cased version (one variety, anyway), Battery, Dry, 1.1/2 Volt, No.12 (WB 0200, NBA 300 or 6135-99-910-1135). The modern contents are a 1.5 volt size 'F' dry cell (original cells were actually square section and wrapped in tarred paper, modern ones are circular cells in cardboard cases and wax-dipped.) I don't believe there is any modern production of this unit. (What we need is someone with a 3D printer to mass-produce a casing that will take a 'C' cell in a holder that can be "dressed up" as a WW2-style item.) Best regards, Chris. |
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What is the input voltage range that the radio can handle?
Might be worth it to mock up a top, and replace the innards with a Lithium-whatever battery pack and have power forever..
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Charles Fitton Maryhill On., Canada too many carriers too many rovers not enough time. (and now a BSA...) (and now a Triumph TRW...) |
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I picked up a pair of those remote control units form the local surplus store back around 1979. I was in the militia then, and the old signals Sergent went into the back room and brought out some reasonably fresh batteries for the units. I'm not sure what else they were used in back then, but they were still in use with some piece of equipment or another.
Come to think about it, I have a portable desklamp hiding somewhere which also uses those same batteries if I recall correctly. I saw those go surplus in the 1980s, so likely the batteries were still around for use in those. |
#5
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Quote:
Switchboard U.C. (6-line or 10-line) uses three of them, the 10-line Magneto Switchboard (W.D.) used a pair for the "night alarm" (plus another pair in the operator's Telephone Set 'J'). It's possible that they're not completely obsolete yet, though adapters were made to fit a pair of 'D' cells in Telephone Sets J & L by the manufacturer, and modern field telephones tend to use C or D cells. Chris. |
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To follow through with Rob’s comments a bit, I have a pair of these dated 04/77 and 02/78 made by Union Carbide in Toronto. Plain beige cardboard with black printing, identified as “CF BATTERY BA-300/U”. I have never seen any dated beyond the 1980’s.
Wartime production batteries I used to have were made by WILLARD BATTERY. Identical in construction but in olive green waxed cardboard with black trim and printing. A very ornate design compared to the bare bones look of the postwar product. The brass terminal assemblies are still available and beige Manila cardboard is very close to the look of the postwar product. It would not be difficult to dummy working D Cell driven replicas. David |
#7
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Quote:
The 6 volts is used to operate the keying relay at the 'local' (to the set) end, and extra cells can be added if the line circuit has too much resistance for it to operate reliably. Chris. |
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Quote:
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Charles Fitton Maryhill On., Canada too many carriers too many rovers not enough time. (and now a BSA...) (and now a Triumph TRW...) |
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