This transmitter for the 40 meter or 7 MHz band was found in a magazine 73 for radio amateurs of the 90s. The circuit has a power of ½ W.
Servo motors operate from the changes in the pulse width in a range between 1 and 2 ms. The...
This circuit was found in a publication of1994, originally obtained from the National...
This capacimeter was obtained in European documentation from the 1980s. The indicator instrument, a...