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Ever wonder about owning gold. No, I do not mean jewelry. I mean owning gold bullion or at least double eagle coins or krugerands. Every now and then you will hear ads on the radio about what a really good investment gold can be. The perfect way to diversify your investment portfolio. What they do [...] I recall how neat is was to see the alien in Terminator to pop in and out of view using his invisibility shield (or whatever it was called). Before long our military will be able to do just that. Sony has developed a thin flexible TV screen that can be worn like a t-shirt. All [...] The biggest single improvement that can be made to the simple GG RF amplifier is the addition of a tuned input. The tuned input improves linearity while also reducing the drive requirements. I recently found a tuned input design by ZL1AXB that does this as well as eliminating the filament choke required by tubes using directly heated [...] About five years ago or more I bought a used ICOM-737 for less than half the price of a new one. It has worked fine for over four years and I would consider it the best of any transceiver I have ever had the privilege of operating. About a year ago it began to [...] |
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