This circuit is from old documentation, but it can be implemented with more modern equivalent components. The transistor can be the TIP31 with a heatsink and the 1N4002 diodes.
Using a new Maxim integrated circuit (www.maxim-ic.com) the amplifier shown in the figure can be...
This modulator can be used in a data link or other signals up to 200 kHz. Range can be achieced...
Found in a 90s 73 magazine, this circuit uses an unusual component today which is the XR2206. |...