[TenTec] Brass Racer Paddles

[Vincent A. Santis]

Hi,

I have an opportunity to buy a pair of Vibroplex Brass Racer Paddles. those 
mounted  on a triangular wood base. These are equipped with some 
electronics, a thumb wheel and provision for a 9v battery. Can someone 
explain the elctronics and also what might be a fair price for the paddles 
in good condition?
Thanks,

Vince Santis,N1VS
Winsted, CT
NEQRP # 598
PRP-L # 2372
FISTS# 8053
CC # 1161