222-MHz Progress

(As of March 21, 2004)

I have a commercially built amplifier for 222 that I got from PAC.  It was supposed to cover the 222-MHz band but not without significant modification.  I have a preamp built, and still need to work on the 2 element quad feed but I am very close to QRV.  The amplifier currently will only put out 320 watts.  I have another modification in mind to beef this up a bit.   It should be double that.   Take note of the before and after pictures to see what I actually had to do to get this amp on 222.  I had to extend both the input tuning and output tuning lines.

1before.jpg
1before.jpg
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2after.jpg
2after.jpg
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3inbefore.jpg
3inbefore.jpg
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4inafter.jpg
4inafter.jpg
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5stub.jpg
5stub.jpg
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6overview.jpg
6overview.jpg
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7preamp.jpg
7preamp.jpg
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8preamp2.jpg
8preamp2.jpg
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MVC-007a.JPG
MVC-007a.JPG
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overview.jpg
overview.jpg
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testbench.jpg
testbench.jpg
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tuningdisks.jpg
tuningdisks.jpg
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view1.jpg
view1.jpg
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view2.jpg
view2.jpg
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