[Elecraft] Re: Elecraft Digest, Vol 8, Issue 22/CW

earl baillley earlbailley at centurytel.net
Sun Dec 26 14:55:01 EST 2004


>  23. RE: FW: [Elecraft] CW (Ron D'Eau Claire)

When I couldnot  find any Vibroplex bugs with slow springs at their store in 
NY I would generally take a full size(Blue Racers automatically excluded) 
one aboard my boat and grind the flat spring that connects the weight arm to 
the paddles. A little circular indentation ground on both sides of the 
spring would bring down the speed with the two weights relatively near the 
end of the weight bar. To go fast slide the weight up. To work KPH slide 
them back down again.

Some bugs seemed to have a natural speed resonance and equally important for 
ship use was the dash feedback that came into our thumb as most often we 
would not have anything aboard with which to monitor orselves unlesss we 
were a lucky boat with 2 HF receivers.

On the LF rig electronic bugs were useless until hv transistors came out as 
the key up voltage could exceed 500v.That keying relay also limited the 
speed as it had a large fraction of an inch as spacing. No monitor necessary 
as the LF rx was a regen.

Ask me if I miss it!

73

Earl W7TK 



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