From: Daniel C Halbert (firstname.lastname@example.org)
Regarding unstable VFO's: W7EL suggests making sure that the VFO
inductor and capacitor are grounded at the same point. This avoids
circulating currents which can get into the VFO tank. For instance,
don't just rely on the metal chassis to connect the variable cap frame
to the grounded end of the inductor.
This hint helped me greatly in getting chirp out of an Ugly Weekender.
It sounds like you may have already achieved something close to this
with your adding of extra wire.
Dan Halbert, KB1RT
Search QRP-L Archives
QRP-L Archive |
[ 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 ]
This archive was generated by hypermail 2b29 on Fri Jun 02 2000 - 11:26:54 EDT