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K
0 Ohm resistor
I have actually seen a resistor in an old television that had apparently overheated and the carbon inside had become crystalized. It measured 0 ohms on my multimeter. A real 0 ohm resistor! -
K
1t4 Single tube receiver schematic clarification?
This info may help, for those who want to build the radio to tune the MW AM broadcast band: 'The coil is wound on a pencil form and is 70 turns of Litz wire. More or less turns on the coil will allow the radio to tune different stations.' 'The chassis is made from thin aluminum and... -
K
1t4 Single tube receiver schematic clarification?
The Super Widget circuit is a variant of the Ultra Audion circuit which was stumbled upon by Lee deForest due to a wiring error. It is an early regenerative circuit, meaning it is very sensitive. I have seen this type of circuit being used as high as 40 meters and have heard of it being...