Reverse-engineering the Apollo spacecraft's FM radio

If you ever wanted to use the sound of the Apollo transmissions creatively, the Lunar Module [1] is possibly the most niche of Eurorack modules.<p>[1] <a href="https:&#x2F;&#x2F;ajhsynth.com&#x2F;Lunar.html" rel="nofollow">https:&#x2F;&#x2F;ajhsynth.com&#x2F;Lunar.html</a>

Very methodical narration - pleasure to follow!<p>I wonder if the reverse-engineered modules ended up functional, or the objective was only to determine the missing pin part.<p>Was the silicone used to simply immobilize the mounted components or for other purposes like cooling, fire retardation?

Is this also the technology that allowed the president to have a real time phone call with astronauts on the moon?

Is it a surprise they didn&#x27;t use PCBs? I thought by the 50s and 60s PCBs were an established technology.