So lately I have been digging through some old photos and came across these; an amazing example of the super rare and legendary distortion pedal, Astro Amp's "Astrotone" (by Universal Amplifer Corp). Somehow this pedal survived all the way through the mid-60s and into the 2020's, where I assume it now resides in some other pedal nerd's collection...
Probably the most interesting thing about this is what we can read from the instruction manual and it's emphasis on the fact that it uses silicon transistors instead of germanium; Temperature Instability? NO MORE! I'm not sure how common this was for music gear in 1967, but it does seem like a legitimate selling point. I'm also into the final hyperbolic sales pitch that states the pedal "will last and sound better than any distortion generator you have heard before!".
Thanks for reading!