RF Burn Hazard, Do not touch antenna while transmitting....
Mad Dog
some adjustments to the antenna.....#$%^%&*&^%$$
Damnit Man dont do that again, burn cream and a band-aid cures all.
The voltage drop on transmit has been cured to say the least.....
You may be a Trucker if the power supply for for your CB burns diesel fuel.
--
714 Sandpile,
The Mad Dog wavin' good bye
Jerry Oxendine
Mad Dog,
I'm not laughing at you, but WITH you. My Mom used to tell me that when
I did something goofy, but it didn't seem that way to me!
I've had RF burns, as have many people who deal with transmitters and
antennas. I KNOW how they hurt because they go right to the BONE!
Here's two--I gotta give you a chance to laugh back! OK? Many years
ago I had an AM mobile transmitter that used a DC Dynamotor to provide
the HV to the Plate. Back then, you could find dynamotors for a buck! I
had burned out the stator bearings and they were howling like crazy. It
was actually cheaper to buy another surplus mil. unit than to rebuild
the old one. So I went to a hamfest and dutifully located a nice dyna-
motor still in the box. Fifty cents, and I was ready to fix my rig. I
got home and, finding that none of the leads were marked, I proceeded
to trace out the 4 wires--2 for 12V, 2 for 625V @ 175 mills. I had
gotten used to hearing the bearings squall, so when I hooked up the 12V
leads, the new unit was SOOO quiet, I forgot to turn it off. I hooked
up the HV ground, and.......grabbed hold of the 625V line. I was
vibrated, defibrillated, escalated (it felt like I was about to lift
off!) and ......it BURNT the hell outta me! OUCH! DAMN! $%&*$#@ SONUVA!
Won't ever forget THAT one! LOL! As a matter of fact, I still have
that %^&$#@ dynamotor sitting on the shelf in the furnace room--just as
a reminder.
The other one was when I, too, was installing an HF mobile in a friend's
vehicle. The antenna was on the side of the truck behind the cab and
it was high enough I had to use a wooden stepladder--for obvious
reasons. I told my friend(?) NOT to key the rig until I told him to.
After twiddling awhile, and several trips up and down the ladder to
check the SWR and get out of the near field, I went back up, grabbed the
whip and ZAP! HOT! So hot, I lost my balance and sorta fell, sorta
jumped off the ladder, landing on my feet. Made my legs sore for sev-
eral days. HOT DAMN YOU, MORRIS, I TOLD YOU NOT TO KEY THAT %^$#@*$
RADIO"!.....you get the idea.
OK, you can go Hee Hee, now.
73
Jerry
Scott (Unit 69)
enough to zap the hell out of you with legal wattage! I KNOW!
Mike Yetsko
'cool'.
It was nothing but a little neon bulb that you clipped onto
the tip of your CB antenna.
Now, remember that it takes about 67.5v to trigger a neon
bulb!
Whenever I needed to add just a bit of length to a whip that
someone trimmed just a wee bit too short, I just clipped on
a neon bulb. Most people liked it.
Mike
Scott (Unit 69) <upp...@hotmail.com> wrote in message
news:3AE661BE...@hotmail.com...
JAMES HAMPTON
Maaany years ago I was over at a friend's house. We were both kids (I was
16 at the time) and he wanted to see what was inside the octal socket on the
back of the rig (an old Johnson Ranger). Another mutual friend was in the
shack. I opened it up for him. Later, we were on the air and I noticed I
forgot to put the cover back on it. I was going to put it back on but
remembered the power was on. I tapped the cover on the shelf - ahhh ...
it's ok, it is made of plastic (right!). I put a bear hug on the
transmitter with one arm (it was 90 degrees in the shack, I had on a
tee-shirt, and I was dripping wet with perspiration) and proceeded to put
the cover back on the ZZZZAAAAAAAPPPPPPP! 650 volts DC knocked my across
the room and momentarily unconscious. My pals were standing over me really
nervous when I opened my eyes and said F**K! The one guy laughed and said
'he's ok'. That really rocked my socks!
BTW, worst RF burn I ever got was when I didn't look at what I was reaching
for and hit the line of a 5,000 watt commercial AM station (WWHG, Hornell,
NY - 1320 AM) - that laid back a chunk of skin probably 3/8 wide and over
1/16 deep. No bleeding (cauterized instantly), but what a smell!
That's why I limit my play to a 5 watt 440 FM rig!
73 from Rochester, NY
Jim
Mike Yetsko
cable once. I was running a Swan 500C, over 400W
output. Anyway, as I adjusted the rig in tune, suddenly
my finger felt funny. I got an RF burn 'around' my finger
under my ring. Took a LONG time to heal, and hurt
like the devil. The whole back corner of my rig looked
like it was backed with fluorescent blue cotton back
by the finals.
Mike
JAMES HAMPTON <j.r.h...@worldnet.att.net> wrote in message
news:egKF6.3875$AU4.3...@bgtnsc04-news.ops.worldnet.att.net...