Re: Big Triode,little knowledge

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "cougercat by way of Terry Fritz <twftesla-at-uswest-dot-net>" <felix1063-at-home-dot-com>

Hi James,

The best way would probably be to connect a thru line watt meter good for
3500 watts to the output connector and  then connect a 50 ohm dummy load to
the watt meter.  Turn the puppy on without the signal generator signal.  You
should have a 0 reading on the watt meter.  Then hook up the fixed frequency
signal generator and you should see the output go up....to a max. of 3000
watts.

Depending on how much "drive" you are applying via the "fixed signal source"
will determine how much power you have on the output.

You might also want to determine the frequency of your signal source by
using a frequency counter by using a calibrated scope.

Multiply the horizontal sweep time (usually in microseconds) by the number
of centimeters on the screen and divide into 1 to get the frequency.

Using a frequency counter would be easier though.

The minimum frequency of operation for your amp is 2 MHZ which is rather
high for TC's.

Good luck

--jeff


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, April 26, 2001 3:29 PM
Subject: Big Triode,little knowledge


> Original poster: "James T by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<jamest2000-at-att-dot-net>
>
> Hi all VTTC junkies,
>   I hope to join your ranks soon. I lucked out at an auction and bought
> a Henry Radio model 2000d, 3000 watt RF Generator.  This unit is
> complete with high voltage supply, filament supply, tube socket and
> cases for everything. It looks to me as if this unit was designed for
> continious duty and still working. Very heavy duty. Everything is silver
> and brass. Even the mounting bolts and nuts are brass.
>   So the most important question. I need to test the 3CX3000A7
> transmitter triode. How does one accomplish this? I have a scope and
> fair skills at non-RF electronics. I have no tube knowledge. I always
> wanted a "toob" coil. Here is my chance, if it works.
>  I have a web page with photos and schematic of the beast at:
> http://home.att-dot-net/~jamest2000/henry.htm
>   Any advice would be greatly appreciated. Reply on or off list.
> <a href="mailto:jamest2000-at-att-dot-net">jamest2000</a>
>
> Thanks,
>  James T
>
>
>
>
>
>