Thursday, September 19, 2013

vwn transmitter, VFO & AM modulations scheme

1 comment:

  1. sir i build a vwn transmitter but it is not working properly .it pulls the vfo while pressing the key. i kept the vfo in a metal box.what can i do sir help me sir my call sign is qth is chidambaram 150 km towards south of i have to pass the general grade exam also. i want to build the cw tx as my first tx.thanks you sir and 73.