My first one of those occurred when I was probably 9 years old.
My dad took me with him to a radio-tv repair shop, back when they
had those. We were hanging out talking to Bill, the shop owner
when I started feeling a large tv CRT sitting face down on a
wooden box. WELL Bill told me that, "Son, you better not touch
that because you can get one heck of a shock from that." I said
in my youthful wisdom/arrogance, well, how can I get a shock from
this thing when it's not even plugged in? About that time, I
touched the hole where the b plus voltage wire connects and that
old CRT unloaded on me. I bet I jumped a foot off the ground.
Of course, Bill said, "I told you that would happen!" Needless to
say, they got a good laugh out of that. 73, Jim WA6EKS
----- Original Message -----
From: John Miller <[log in to unmask]
To: [log in to unmask]
Date sent: Fri, 24 May 2013 21:25:12 -0400
Subject: Re: Shocking experiences!
Yeah, bleeder resisters don't last forever and you have no way of
knowing if
they're any good or not until it's too late sometimes.
----- Original Message -----
From: "Steve" <[log in to unmask]
To: <[log in to unmask]
Sent: Friday, May 24, 2013 6:44 PM
Subject: Re: Shocking experiences!
I've developed a healthy respect for plate caps.
I remember when a ham neutralized my old Hallicrafters rig with
TV sweep
tubes, i.e. probably only 600 volts on the plate cap. He
touched the tip
of
a screwdriver to the plate cap and it made a helluva an arcing
noise.
When a friend brought over the AL811A I purchased and was
hooking up a
jack
for my tuning aid, you could hear the caution or fear in his
voice as he
worked inside that amp, even with the power disconnected. You
never know
if
those bleeder resistors are really working and I think that
thing runs
1800
volts on the plates.
Steve, K8SP
----- Original Message -----
From: "Jim Gammon" <[log in to unmask]
To: <[log in to unmask]
Sent: Friday, May 24, 2013 2:46 PM
Subject: Shocking experiences!
Reminds me of the time another blind ham and I were "exploring"
inside his TR-4 Drake and I got across the b plus voltage. I
have no idea why we were poking around in there with the power
on. Those rigs even had an enclosed box containing the high
voltage circuits but, in the case of that particular rig, it was
open. Man, what a shock-o-runi! Jim WA6EKS
----- Original Message -----
From: Colin McDonald <[log in to unmask]
To: [log in to unmask]
Date sent: Fri, 24 May 2013 12:23:35 -0600
Subject: Re: acessible radios
ah yes, the swan 270A lol.
pretty neat rig with the built in power supply and all tubes in
a
very small
package for the time.
I was given a 270 when I was about 14 or 15 I think so I could
have a decent
radio to listen on.
Of course, I had to golden screw driver the thing...one of those
sessions I
found the big coil near the power tube that carried 700 volts on
it...my
finger touched it and I was thrown a couple feet back...little
burn on the
finger too.
It wasn't transmitting thank god so it wasn't as bad as it could
have been.
Anyway, always liked that rig and when I sold it along with the
SBE64? it
was still transmitting at least 100 watts on most bands.
I had tuned it way back then down into the 11 meter band of
course and it
went right down to about 26.5MHZ or so.
73
Colin, V A6BKX
----- Original Message -----
From: "Buddy Brannan" <[log in to unmask]
To: <[log in to unmask]
Sent: Friday, May 24, 2013 9:14 AM
Subject: Re: acessible radios
I had a National NCX3 for a short while that I tuned the same
way. =
Except the power supply hum was loud enough that I didn't have
to put my =
ear to it. Or maybe my ears were young enough. Sure wouldn't
mind having =
another of those, or better, an NCX5.=20
Dave mentioned the Swan 270. I have one of those, got it last
year, but =
no idea if it transmits. Receives fine though. I have a D104,
but again, =
no idea if it still works or if the crystal element's gone or
what. So, =
two variables.=20
--
Buddy Brannan, KB5ELV - Erie, PA
Phone: (814) 860-3194 or 888-75-BUDDY
On May 24, 2013, at 9:30 AM, Howard Kaufman <[log in to unmask]
wrote:
A friend of mine who is a Dr. saw me do it, and gave me a
stethoscope =
to=20
make it easier.=20
|