gps
"Wizard of Woodstock" wrote in message
...
On Wed, 20 May 2009 20:53:26 -0400, "Eisboch"
wrote:
"Wizard of Woodstock" wrote in message
. ..
On Wed, 20 May 2009 17:25:21 -0700, "Calif Bill"
wrote:
"Wizard of Woodstock" wrote in message
m...
On Wed, 20 May 2009 02:46:50 -0400, "Eisboch"
wrote:
I think they should put new tubes in the old LORAN system transmitters
and
keep 'em running for a while.
There 'ya go - Tubes.
WHOO HOO!!!
~~ From a radio Luddite ~~
Last Loran I had did not have Valves.
You know - you could make the argument that transistors are nothing
more than solid state vacuum tubes.
Which would make them valves.
True, but in conventional wisdom, tubes are valves, transistors are simply
"solid state".
For Calif Bill's benefit, I wasn't referring to a LORAN receiver which is
most assuredly solid state.
I was speaking of the transmitters that are very likely to still use big
old
vacuum tube power amp outputs.
MORE POWER!!!
3CX3000A7 baby....
Funniest event during school at Keesler was during a TACAN class. We ran
the units on Low Power. Only 3000 volts on the tubes. About 3kw dummy
load. We had a Vietnamese MAP student in the class. Had absolutely no
common sense when it came to electricity! When you needed to work on the
unit, you turned the dial on the front of the drawer to zero. Open the
drawer and use a shorting bar to make sure all the caps are discharged. The
kid did not bother turning down the power, and opened the drawer and
proceeded to touch the shorting bar everywhere. Sparks bouncing off the 12'
ceiling and he never realized something was wrong or even different. The
instructor was in shock, the rest of us were in hysterics.
|