Yamaha Portasound PSS-80 - dare to be square(wave)?

Yamaha Portasound PSS-460 FM keyboard - the 'Soundblaster' chip in action...

HOW TO circuit bent a Yamaha Portasound PSS-80 with 10 mods (by BAUM)

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Coffee Shop Music - Relax Jazz Cafe Guitar (Instrumental Background)

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Yamaha PS-400 - Full Review

[4K] Free VJ Loop Background. Pearl Stylish Waves Smooth Motion. Royalty Free Calm Motion Relax

The Yamaha PSS-140 - a vintage keyboard that sounds like a Sound Blaster card

Gentle music, calms the nervous system and pleases the soul - healing music for the heart and blood

Casio HT-700 Spectrum Dynamic mini synth

Yamaha SHS-10 Keytar Review

Triangle néon en mouvement : une danse de couleurs abstraites en 4K(Sans Audio)

Yamaha MK-100 Multi-Menu demo

Boucle de DJ illustration 3D avec des lumières rondes néon multicolores 4K

Yamaha PS-3 Review

YAMAHA PSS - 290 (sound and styles demonstration) Hi Q. sound

WELSON President [70's synth review]

Meet the little-known "Soundblaster" Keyboards

Amstrad Fidelity CKX100 - Computerphonic!

Yamaha PSS-480 - Part 1: The FM Synthesizer