Total posts : 45366
Hi Guys! Thanks to Dave about using the 2 transformers
back to back to make an isolation transformer. I wish I
had understood that in 1968. And you sure are right
about not exceeding the specs of the transformers!
I forgot one story about the range of the Kt-195.
As I mentioned, mine was built wrong and it put out
the most on 2100 kHz (along with some other output
products.) We kept doing our radio shows anyway.
It was a real intermittent schedule and being on the
marine band or the 120 meter international broadcast
band (I think) didn’t bother us.
The KT-195 was on a counter in my parent’s rec-room (sp?)
A ten foot wire lay on the floor. (Cause in those days I
think the rule was ten feet and not 3 meters like it is now.)
The ten foot wire was a piece of 300 ohm twin lead. I was
just using one side. We would let a tape run, or a record.
I would take my Korrsonic (sp/) multiband portable radio
up to my room or over to my buddies house about 150
feet away. We heard it OK there.
What I didn’t know, and was later told by another really good
friend is that he was picking it up 3000 feet away on the far
side of the golf course (on the other side of my street) and across a pond at his house. It was S7 on the meter of a Knight R100A general
coverage receiver. In forty years,(and I am still in touch with both
friends) we have never been able to explain this long range with
the transmitting antenna lying on the rec-room floor.
All I can think of is that RF might have also been going into the
house wiring from the transmitter circuit and was being
radiated that way. Oh yeah, my friend 3000 feet away did have
a ninety foot outside wire receiving antenna.
I guess we’ll never really know!