I have used a Tail Twister to rotate the KT34XA on my tower for the last 33 
years. It has had to be replaced once. For many years I used a Science for 
the Blind audible meter reader as my directional indicator. About 5 years 
ago I had my antenna man install the Idiom Press Rotor EZ circuit board into 
the control box. This provides automatic braking delay, and allows the 
direction to be set by turning the knob (which is no longer used for 
calibrating the meter) to the desired direction, then pressing the center 
lever switch. We also added the RS232 option to this board, so I can use my 
computer to set the heading, as I am often doing during the 20-meter net.
73,


Lloyd Rasmussen, W3IUU, Kensington, MD
http://lras.home.sprynet.com
-----Original Message----- 
From: Jim Gammon
Sent: Saturday, April 18, 2015 11:47 PM
To: [log in to unmask]
Subject: Audible rotor direction indicator

I don't think I have commented on this thread, but back in 1975,
I had a HamAm rotor that turned my HighGain TH6DXX 6 element
beam.  There was no way for a blind person to know the direction
the antenna was pointing because the rotor meter was of course
under glass and probably had a very small needle.  A friend at
the time, built a small device, seems it was a voltage controled
oscillator with a pointer knob on top that rotated freely 360
degrees.  I would set the pointer in the direction I wanted to
point the beam and hit the keys on the rotor.  When the tone in
the speaker inside the attached box nulled out, I knew I was
pointing northwest or where ever I needed to point.  I am not
aware of any similar audible rotor indicators out there today.
Jim WA6EKS