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copper ring
This copper ring is the main or only part to the splitter and combiner circuit..This one is going to be the splitter which takes the single driver RF signal from the 1296 transmitter and splits or divides the signal equaly to feed the two cavity amps..
Date: 09/11/2008
Views: 645
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Splitter N conn
This view is the back of the splitter showing all the N connections..One input, two outputs, and a reject or isolation port which is hooked to a 50 ohm load...
Date: 09/11/2008
Views: 779
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Splitter testing
This view shows the testing of the circuit, the two output wattmeters and one wattmeter in the rejection port.
Date: 09/11/2008
Views: 600
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Copper ring-2
Another view of the copper ring, a metal cover will eventually cover the ring for shielding..
Date: 09/11/2008
Views: 610
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RF splitter-3
Here is a close up view of the RF driver splitter mounted on the chassis and its connecting cables and isolation load.
Date: 09/16/2008
Views: 558
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RF splitter-2
A rear view of the amp and the splitter installed..
Date: 09/16/2008
Views: 630
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RF splitter
Another view of the splitter on the amp chassis..
Date: 09/16/2008
Views: 567
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Splitter box
Well this is the actual testing of the input splitter on the amplifier, you can see all the power supply cabling to both sides for the first time and the wattmeter in the rejection port for the test and tuning..
Date: 09/23/2008
Views: 542
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Dual Power
A front view of the two power supplies side by side..
Date: 09/23/2008
Views: 573
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PRE TEST
This view shows the two power supplies and all the cables and cooling lines hooked up just before the switch was thrown to fire everything up...
Date: 09/23/2008
Views: 689
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Water cooling
The single water tank with two pumps in it for cooling both sides for this short test..Eventually there will be two seperate tanks and a cooling radiator system added..
Date: 09/23/2008
Views: 574
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Idling LEDs
The bargraph display showing both cavity units idling before RF drive was started..
Date: 09/23/2008
Views: 581
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Testing LEDs
A bit of a blurry pix showing both cavities putting out some RF power right around 100 watts each..The drive was kept low to test the input splitter so that the individual outputs of the amp wouldnt overdrive and smoke the two RF dummy loads..The input sp
Date: 09/23/2008
Views: 574
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220VAC monitoring
This pix shows my clamp on AC current meter probe to watch the 220VAC primary circuit to see what it was doing during the test...Quite the power hog, with both amps idling the primary total current draw was 8.3 amps, when the amps were being driven lightl
Date: 09/23/2008
Views: 585
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Testing
So here the twins sit, all fired up with high voltage of about 1800 VDC each and filaments warmed up ready to go..The two wattmeters are monitoring the individual amp outputs, the next step is building the output combiner so that the output RF is all in o
Date: 09/23/2008
Views: 594
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Combiner-1
A test of the output combiner circuit..
Date: 09/28/2008
Views: 495
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Combiner-2
Another pix of the combiner showing the wattmeters monitoring the combined output and the RF to the rejection port..
Date: 09/28/2008
Views: 636
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