Offering to the DX'er/contestor a near mint Ameritron 10-160m instant on (no warm up) AL1200 amplifier reconfigured for sustained higher output levels. The filter capacitor board has been retrofitted
(The following amplifier makes a suitable driver for a g-g 8160) 85w will drive a 3cx1200A7 to the point where it is beginning to run out emission. R L MEASURES, AG6K. 805-386-3734 r@somis.org ______
85w will drive a 3cx1200A7 to the point where it is beginning to run out emission. R L MEASURES, AG6K. 805-386-3734 r@somis.org Hmmm, there is quite a significant increase in the output power of this
How much anode-I? There is no max grid-current rating for the 3cx1200A7. 3-500Zs will continue to make more power up to about 550mA of anode current, but they begin to get non-linear c. 420mA. R L ME
There is no max grid-current rating for the 3cx1200A7. WOW, this tube is better than I thought it was. _______________________________________________ Amps mailing list Amps@contesting.com http://lis
The Eimac data sheet (Reference Data from the web) gives a 50 watt grid dissipation rating. I don't have the constant current curves to see what that works out to but the grid of a 3-500Z is rated fo
P = I x E comes pretty close. R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/li
50W is the max diss. rating. P = I x E R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/m
That's fine but as I said: "I don't have the constant current curves" which means I do not have any way to determine the peak (or even average through the full RF cycle) cathode to grid voltage in th
At 2000w out with 120W of drive and 250mA of indicated Ig, grid dissipation is only about 30W with a peak emission current at the crest of the cycle of about 4 amps. Contrary to authoritative guesse
According to what I read in Care and Feeding ... ..., average griddissipation is approximately = to average grid/cath.-V multiplied by average (meter-indicated) grid-I. I presume that average grid-ca
Tom -- So why do Eimac's published constant current curves on the tube begin to deviate from a straight line when the anode current exceeds 2.5a peak? Are you sure there's a 4A curve on the published
Rich, This stops right now! You will not badger anyone who offers data and support on this reflector as you have done so time and time again. If you have technical PROOF that contradicts the data off
<<Tom -- So why do Eimac's published constant current curves on the tube begin to deviate from a straight line when the anode current exceeds 2.5a peak?>> Odd-order IM distortion is the result of a t
See below; ** REPLY SEPARATOR ** Running a tube at other than the specified tolerances shown on the published curves by the manufacturer can and will void warranties. Once the line starts to deviate,
Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Date: Sun, 25 Jun 2006 07:19:56 +0200 (CEST)
This all leads me to wonder if someone, somewhere, has got a simulation program into which you can feed the tube characteristics and get out the parameters such as intermod, input impedance, grid dis
Running a tube at other than the specified tolerances shown on the published curves by the manufacturer can and will void warranties.> Eimac is long QRT on 3-500Z tubes, but they had a rating system
See Below; ** REPLY SEPARATOR ** I'm not refering to Eimac but the numerous other suppliers and manufacturers. This since Eimac no longer manufactures the 3-500Z as far as I know. You send one in for
Eimac's tube calculator software disagrees with that guess and predicts 20 watts. 73 Tom Hey Tom, It's nice to see you back in here!!!!!!!!!!!! It's been a long time since we've seen any postings fro
It is great to see Tom back here after many years and many subscribers hope he keeps coming back. You will not turn the amps list into your personal vehicle to beat up on W8JI and W0ID. Your constant