AM Transmitter - Multi-Band AM DSB Transmitter for Hams

This is a circuit diagram for an AM transmitter that emits the two sidebands of equal strength to the main carrier signal, and the main carrier is removed. This makes it approximately three times as strong as a regular AM transmitter, in which only 1/6 of the carrier's main signal power is present in each sideband.

The circuit has a microphone input, which uses an op-amp 741 circuit for amplification. I'm sure that with some tweaking and reduced gain it would be possible to feed line-level audio/music.

Since the reception of a DSB signal requires a bet-frequency oscillator on the receiver (if the carrier is missing), it will not be picked up on a regular AM receiver. However, there is an adjustment that increases the carrier level in the output, so it will be possible to adjust this so that the transmitter's signal can be received on a regular AM receiver. At least, that's my understanding of it anyway. See the post for all of the gory details.

The AM transmitter circuit looks very clean, with all component values included.