Back in October 2022 I posted details on the blog of a of a "High Performance AM, CW & SSB Modulator for The G6LBQ Irwell HF Transceiver" this module was somewhat experimental and for me a practical introduction to the MC1496 modulator IC. The module contained no microphone amplifier stages as it was my intention to add these as a separate module at a later date.
To view my 2022 Modulator blog post article click here.
In
this blog post I get to grips with the microphone pre-amplifier and share some of my design methods and thought processes along the way. Note It is not my intention to provide a step-by-step guide to the design but more of an insight and reference.
The success of this module is crucial in order that I can continue development on the final transmit stages and achieve finished project status.
