DSB QRPP micro transceiver in 21 Mhz

This is a diagram of a very simple design of micro transceiver 21 Mhz built only 2 ICs (SA612 and LM386) and several discrete components, structures can easily be neglected and another frequency with recalculation and resetting the freewheeling circuit and change a quartz resonator.

Miro, LZ4NY