Uploaded March 2024 | Updated September 2026, 3 weeks ago

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What I had in the 1970's is pictured below.
reverb.com/uk/item/1385251-vintage-tandy-radio-shack-science-fair-synthesizer-diy-ss-circuit-electronic-organ-kit-1960-s-1970-s

And look what you can get now for just £90

amzn.to/3VfFiiT