On 9 Oct 2003 23:39:07 -0700, (OK1SIP) wrote:
Variometers are often used for tuning antennas at 136 kHz. See
http://www.sweb.cz/ok1fig/Small_vario.jpg ,
http://www.sweb.cz/ok1fig/Big_vario_02.jpg ,
http://www.sweb.cz/ok1fig/Big_vario_03.jpg or
http://www.g0mrf.freeserve.co.uk/variometer.htm .

BR from Ivan

Hi Ivan,

Those are some great variometers.

73's
Richard Clark, KB7QHC