A Little video on how I am displaying the SWTPC psych tone, a rare piece of 70's synthesiser history! do check out this video for more information :- https://www.youtube.com/watch?v=3-iTcMpbOFE Where I get hold of it and make all the necessary modifications to make it friendly to be displayed. Support Patreon :- https://www.patreon.com/lookmumnocomputer Paypal :- https://www.paypal.me/lookmumnocomputer ARCHIVE COPY :- https://worldradiohistory.com/UK/Practical-Electronics/70s/Practical-Electronics-1978-01.pdf other issues here :- https://worldradiohistory.com/Practical_Electronics.htm #synth #tech #history