This is an update on my QRSS Project of a previous post - not much to look at. So far, at this stage it is still on the breadboard, but seem to be very promising. It is much more stable than I would have thought considering the current state and temperatures that it has endured. It ran in this configuration for 8 days on one 9 volt battery, until the battery went down to about 2 volts - I forgot to check it's progress.
My goal is to include the modulator and design a PCB for a SMD configuration.