Re:Etch a circuit board with kitchen supplies
by Mister_X on Sunday November 11, 2018 @10:03PM
(#18430295)
Cool! So do I, from 1969, in my high school electronics class and it still works too.
It's for a variable audio oscillator that rises and is re-set by a micro switch.
I tuned it with a precision trim pot, to sound "like" a then new, electronic Police Siren, it was a big hit at school with all the guys.
Unfortunately, I used the case from my first Transistor Radio, which was an xmas present in 1962, a beautiful red and creme, Jupiter, 6 transistor radio, I regret cannibalizing it for the case, to this day.
It's for a variable audio oscillator that rises and is re-set by a micro switch.
I tuned it with a precision trim pot, to sound "like" a then new, electronic Police Siren, it was a big hit at school with all the guys.
Unfortunately, I used the case from my first Transistor Radio, which was an xmas present in 1962, a beautiful red and creme, Jupiter, 6 transistor radio, I regret cannibalizing it for the case, to this day.
Cream and white one here: https://www.radiomuseum.org/r/jupiter_6_transistor.html