WTD: Specs on M72 cell (battery)

Mar 20, 2005 4 Replies

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GS 21 years ago

This (or these?) was used in the General Radio 1232-A tuned amplifier. The holder is a cylindrical tube and the battery or cells are slid into it to contact a strip for + on one end......pretty much similar looking to what would take D-cell's except only slightly smaller O.D. Cylindrical tube appears to be 1.25 I.D. x 7" long (Batteries would occupy approx 6.5" of that...spring and rear cover the rest).

The only indicator of what they were is "M72 CELLS" on the cover (Mallory?) Nothing found in my Google searches, online cross-references, or in catalogues I have back into the mid 70's.

Any help appreciated - Thanks

Gord - VE1AJF

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Travis Jordan 21 years ago

Mallory RM-4R (unfortunately, NLA)

The power supply voltage is 12V. You could just use a set of ten 1.2V rechargeables that will fit in the holder.

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GS 21 years ago

Thanks much Travis......The battery voltage was exactly what I wanted! It'll be interesting to look up the specs for those old cells anyway.

Gord

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Travis Jordan 21 years ago

Hi Gord -

I also found this today while doing some more research on those cells. It may be of use to you.

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Travis

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GS 21 years ago

Howdy again Travis - SURE APPRECIATED the link to that manual for the

1232-A! Saved a copy and will pass 'er on when I'm able to for others.

My junk box is open to you ;)

73 - Gord VE1AJF

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