It's something like this:
Voltage sampler, 1N series diode detector based 10Kw RMS meters.
Then, take the negative feedback off one side of a popular two transistor amp (2X2290, Texas Star DX250) and see > 500 watts PEP.
The 350 model (twin 2879s) will show near 1000 watts, PEP on these harmonicomoeters.
People actually do this, and put the B+ lead to the amp on some type of switch / solenoid... "Thing won't unkey, but hey, it's doin a thousand!!!!!!.. I put this here foot switch in the positive lead (read this as old style headlight dimmer, footboard based) and use it to unkey the thing. Man, I never had a two pill doin a gran before!!!".
Make sense?
--Toll_Free
toggle quoted message
Show quoted text
On Tue, 16 Jan 2007 10:48:30 -0800, Harold Mandel <ka1xo@...> wrote:
[snip]
Take an amp, change a couple caps to make the harmonic-o-meter swing
farther to the right, and call it 'your' design.
[snip]
The snippet above implies a device to measure harmonic
content. Where can I get one?
If let's say I run across a 25KW (Bird Watts) amp,
and I can get one of these harmonicometers, will it
SUM the energy in, let's say the First through Thirteenth
harmonic so I can show it to my 11M eyeball-QSO
drinking buddies as maybe being 50 or 60 KW?
Oooooo, the possibilities here for more "commercial"
sales.
Hal
6L6GB
--
*Ratings are for transistors, tubes have guidelines*
