I have been doing some troubleshooting of my
Minima VFO, for some reason it is not "talking" with my Minima CPU module. My friend
Jeff - KO7M as provided some suggestions for resolution that I am working on.
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My Minima VFO As Built |
Just for fun, I took some
Microscope Photos while reviewing the circuit and PCB layout for errors. Here are a few for your review.
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Si570 From Pins 4 and 5 Perspective |
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The 3.3 Volt Regulator - SOT-89-3 and Its Output 0805 Filter Caps |
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Power Indicator with its attending limiting Resistor The Resistor and LED are size 0603 |
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Binocular Core Output Transformer This is 32 AWG Wire |
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SMA RF Output Connector |
I enjoy working under the Microscope, there are many things that otherwise we would not see.
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Comments Welcome !
ReplyDeleteWhich microscope do you use?
ReplyDeleteJohn,
ReplyDeleteI have the SM-3T, see: http://wa0uwh.blogspot.com/search/label/SM-3T
It is also available with Twin Beams, which I think Jeff purchased.