All of the software apps that Reg G4FGQ developed and made available to us are still alive at
A friend obtained the right to keep them available to the public from Reg's daughter shortly after his death. Reg published a veritable plethora of amateur radio and RF related software over the years. As a tribute to his expertise, thoroughness and accuracy, I've never encountered a bug in any of the software that I've used.
What the mike does is amplify sounds by resonance, but there is vertually no directionality. You need multiple in phase sounds to get directionality. The shotgun mike only has separate discrete sounds which do not combine in phase.
Yep. Also Olson electronics stores, and mail order from Allied Radio (Knight Kit!) and Burnstein-Appelbee and more; Newark electronics will call (call them up, order, and show up with cash, at age 14 they thought you were a runner for dad's shop). One of my bigger surprises was getting uA741 op amps (mil overruns and other surplus) at a surplus house in Mountain View for $0.50 each in the mid to late
1960s. And Motorola, NS, GE, RCA, TI, Fairchild and other semi. mfgs. making all kinds of experimenters kits. Growing up in silicon valley was great.