Can anyone help with my year long search for a specific type of old battery? site address for battery collectors would be good. I seek nine single cells from turn of century for a marconi coherer reciever, they are known as typeQ dimensions are 2" square by 5" tall, they have a central screw terminal and a fly lead for neg connection. They were made by Obach and also Seimens. Good price for right goods. Please help.
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Bob
