30-06-2020, 08:15 AM
(This post was last modified: 30-06-2020, 08:17 AM by Murphyv310.)
Thanks Michael.
Later last evening I loosely coupled the signal from my modified Wellbrook loop and received at excellent volume from some Spanish stations then lo and behold Caroline on 648 came through, the tuning is pin sharp with no splatter from adjacent stations. I tried to do a video using the phone but the mic is too insensitive for decent audio off the headphones.
I'm thinking of using an Epad chip for detection as it's very high impedance so should not load the RF amp as much as a diode, what's your thoughts on that idea?
PS. Do you have any practical circuits for mixers
for the 1j42a?
Later last evening I loosely coupled the signal from my modified Wellbrook loop and received at excellent volume from some Spanish stations then lo and behold Caroline on 648 came through, the tuning is pin sharp with no splatter from adjacent stations. I tried to do a video using the phone but the mic is too insensitive for decent audio off the headphones.
I'm thinking of using an Epad chip for detection as it's very high impedance so should not load the RF amp as much as a diode, what's your thoughts on that idea?
PS. Do you have any practical circuits for mixers
for the 1j42a?
