Radio Theory and design
Wednesday, April 20, 2016
Building a toroid coil
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May can use this when we build a front-end for our receiver. Storing it here so I will not lose it.
Tuesday, April 19, 2016
Storing a couple of ideas for future projects.
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This simple two penny coupler could come in handy so I'm filing it while I have it handy. We had a discussion about making and using ...
Dual gate MOSFET amp prototype.(BF2040W)
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I put a 5 Volt regulator on the board. In the upper right corner the green is the filter capacitor. The strip closes to the front...
3 comments:
Examing the datasheet to see what the MOSFET biasing should be.
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Building prototype with 5V, 4V and 1V voltage divider. Next post.
Dual gate MOSFET cascode?
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Another look at the dual gate MOSFET. It could be a spin-off of a darlington pair. A darlington has two transistors on one chip. the base...
Friday, April 15, 2016
How many stages should a set have? The 1923 Popular Radio answer to selecting a radio.
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Wednesday, April 13, 2016
How to make an IF transformer for that odd frequency.
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Someone ask where to get IF cans another asked what the IF in an antique radio was. They are after parts to build that radio of their dream...
1 comment:
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