YAMAHA's toy went berzerk! The PSS-680 MUSICSTATION

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

YAMAHA PSS 680 - Review & Demo - Retro Classic From 1988 - HQ Audio

Yamaha PSS780 - A quick demo before I posted it... 3 years ago...

Yamaha PSS-680 demo.

Yamaha Portasound PSS-680 FM keyboard

Yamaha PSS-680 teardown and repair

Can I FIX this 1980s Synth / Keyboard Beauty?

My first synth. STILL AWESOME! Yamaha PSS-480 from 1988

BOOcast - Synth of the Month: Yamaha PSS-480

Yamaha Portasound PSS-580 FM keyboard

Yamaha PSS-480 - Part 1: The FM Synthesizer

Bad Gear - Yamaha ReFace DX

Yamaha Portasound: The amazing evolution of the PSS series

Making Wizard Music on my PSS 680

Pssing Acid Tutorial - Loops and Realtime tweaking on Yamaha Pss-480 Pss-580 Pss-680 Pss-780

Yamaha PSS-480 - Part 3: The Synth Editor

Yamaha PSS 680 | Yamaha PSS 680 demo

Lofi Tip - Hidden Monosynth Mode on Yamaha pss-480 pss-580 pss-680 pss-780

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

Supernatural Darkness - Flying Fortress melody on Yamaha PSS-680