[NJARC] Removing acid (powder) in old radios

[Nick Senker]

Vacuum or blow as much powder out ot the chamber as possible, then make a paste of baking soda (bicarbonate) with water and brush on, then rinse.  This is less powerful than ammonia but is safer to use. Your feedback would be appreciated.  Nick Senker

-----Original Message-----
>From: Pmalvasi at aol.com
>Sent: Aug 5, 2006 11:39 AM
>To: njarc at mailman.qth.net
>Subject: [NJARC] Removing acid (powder) in old radios
>
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> 
>On this 100th anniversary of the invention of LSD I have a question about  
>removing dried battery acid in old radios.  I recently acquired a pair  of BC 
>611 Walkie Talkies. One had the original batteries installed and the  round one 
>long ago leaked and exploded out of its tubular  casing. I fact so much so 
>that it ruptured the side of the housing of the radio  (but amazing thanks to 
>superb Motorola design the interior is partioned off  to the radio board which 
>are  immaculate!)  It took quasi-major excavation work to remove  the shell now 
>fused to the inside of the case but I did it - leaving  lots of powdered 
>battery juice all over.  I was able to  brush much of it out and away but residue 
>remains. And some of the  powder is all over the contacts and wiring in the 
>lower section which  contains the clever connections to the earpiece and 
>microphones (also  cleverly well isolated in the housing).
> 
>Is there any chemical which is safe to use to get rid of that stuff  properly 
>or should I use the old soapy warm water treatment?
> 
>Last question, probably better suited to green radio list, is the drab  green 
>paint available? Fortunately the outter of the cases of each is  amazingly 
>sound but a few dings - which I may leave anyway. I sense these have  been 
>stored in a very dry place as even the original green cloth carrying  straps are 
>quite sound and their color still good.
> 
>73 Pete W2PM
>
>Pete Malvasi
>(201)  819-1065
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