DIYbanter - View Single Post - Will RF output (transmitter) be the same wattage as audio output?

Michael A. Terrell

wrote:
On Monday, March 13, 2017 at 3:40:12 AM UTC-4, wrote:
"LOL! I remember when I was just getting started in TV repair
and my dad had a 40s radio in the shop for repair. In horror,
I saw him put his finger on the "plate" cap of the IF tubes as
a poor man's signal tracer. Of course, my first experience with
a true plate cap was my finger on a horizontal output tube..

I bet you learned some respect for eletricity.

For me it was the cathode of a damper tube, which has even more.
That SOB burned my finger all the way to the bone, and cauterised
it at the same time. The "one hand" rule did not save me from
that, but really if I completed a circuit to anythihg at the time
I could have been history, way back then. Actually that does not
sound so bad these days, but that is not the point. Youngers who
want nto this business need to know that there are more than five
volts in the world.

They need 4 or 5 years of union electrical school. It sure helped me.

Did it teach you how to wire the HV power supply in a high power TV
transmitter? Have you ever worked with 10 KV shielded cable? Years ago I
was installing a TV transmitter when the local building inspector told
me that I had to hire a local wire monkey. There was no one in tea area
that did industrial level work, so I showed him the HV cable and asked
which of the GOBs was bonded and insured for $1 million to cover any
damage to the equipment.

I showed him the table covered with the factory installation and
asked him to read the top left corner where it said "Electrician,
connect power here". All of the switchgear was bolted to a 4'x10' sheet
of 1/4" steel plate. He insisted that it had to be taken out and screwed
to a sheet of 1/2" plywood. There was over a ton of transformers and
switches that would have snapped plywood into pieces. He was not
qualified to inspect anything bigger that a small store or one of the
thousands of Condos in the area. He had no idea who the FCC was, or what
a FCC Construction Permit was. He was as clueless about the FAA permit
for the tower or the lighting requirements.

Then I handed him my copy of the NEC and asked him to show me the
relevant sections for industrial and studio wiring. He tossed it on the
table, cursed me out and said he would be right back with a 'Cease and
Desist Order to stop work on the new TV station. He never came back.

--
Never **** off an Engineer!

They don't get mad.

They don't get even.

They go for over unity! ;-)