At 07:54 PM 6/11/2017, Bill Stewart wrote:
>Is anyone using a Lysco xmtr? If so, just wondering what you do
>for antenna loading. I am using a 80/40m dipole, coax fed, and
>on forty can get a good dip at 100ma and a bit higher as I go up
>freq from 7050kc. On 80m can only get about 25ma max. I haven't
>tried the 160m inv. L yet, but will try that in a day or two. Would
>some type tuning network help? Tnx for any comments.
Bill: The Lysco rigs used a low Z tap off the plate tank coil.
Lysco also made L/C antenna tuners to help their rigs
tune random loads.
I would recommend a transmatch to help you with
your 80M situation. You might also check your
antenna with an analyzer. Lastly, there may be a
problem with one of the bandswitch wafers that
change the tap for each band.
If you have not yet looked at the 807 amplifier section
underneath the chassis, this is where the two plate
tank coils are. One is for 160/80 and the other is
for 40 through 10. If your amp stage has overheated
at any time during the last 66 years, the tank coil stock
may have sagged, causing a problem.
Keep the Lysco going... it was a unique rig for it's
time. And you can't beat that huge dial. :-)
Perry w8au