[GreenKeys] Unusual telegraph device

[Richard Knoppow]

    From the language on the instructions its British. 
Accumulator for battery and earth for ground are tip offs.

On 4/15/2018 4:49 PM, Jim Haynes wrote:
> 
> Seems like a good guess.  I'm aware of fax machines that used a wet
> chemical paper, but in those the roll of paper came wet and had 
> to be
> kept in a humidor.  Wetting the paper just before use seems like a
> much better idea.
> 
> On Sun, 15 Apr 2018, hwhall at compuserve.com wrote:
> 
>> I'm thinking the paper wetting isn't for gum but to activate 
>> chemicals
>> soaked into the paper & make the paper slightly conductive. 
>> Note that the
>> schematic the roller & pecker are electrically connected, and 
>> the paper
>> presumably moves between them, current might have caused 
>> chemicals to react
>> to leave marks on the paper.
>>
>> Wayne
>> WB4OGM

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL