1980s Casio PT-7 w/ Original Box

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"main features:

29 tiny soft touch foil keys on a detachable slim line keyboard with short cable
built-in speaker

8 notes polyphony

separate knobs for main and rhythm volume

tempo knob

6 preset rhythms {waltz, samba, swing, slow rock, pops, rock} selected by a slide switch

8 OBS preset sounds {piano, elec. piano, organ, pipe organ harp, accordion, clarinet, violin} selected by a 4-step slider + switch

main voice CPU "HD44140, 3G 13" (56 pin SMD) with timbres based on multipulse squarewave tones with different digital envelopes, those are differently low pass filtered through capacitors. It makes very warm and pleasant timbres, but envelope release phase is truncated too soon, which makes piano- like tones less natural.

rhythm IC "NEC D8048C 316, 8322X7" (40 pin DIL, same like in Casio MT-40 that outputs trigger pulses for analogue drums).

analogue percussion {base, snare, open cymbal, close cymbal, clave}; cymbals and snare use transistor noise.

jacks for AC adapter & headphone"

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Access Virus TI2 Desktop Digital Synthesizer

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Kawai k5000s SN 592995

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"The K5000 was Kawai's top of the line music workstation digital synthesizer when it was released back in 1996. It's a bold and elegantly designed synth with a large LCD display, realtime controls and incredible sounds! The look and functionality is rivals the competition from the time...the Korg and Kurzweil .

The K5000S (pictured above) adds 12 dedicated knobs for hands-on control of filter, LFO and envelope parameters. There are 4 user-definable knobs and 2 assignable switches. The K5000S also has a 40-pattern arpeggiator on-board with 8 user-definable patterns too! K5000's have been used by Kraftwerk."

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RITM-2 soviet analog synthesizer

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"Vintage analog synthesizer, a clone of the Moog synthesizer, copied and making by the former USSR engineers. Synth specs: LFO, VCO, Mixer, Noise, Filter, Contour Generator, VCF, VCA, Pitch."

You can find demos of the RITM-2 in previous posts here.

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Vintage Korg BPX-3 Bass Unit Synthesizer Module SN 4010220

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You can find a demo of the KORG BPX-3 here.

"Vintage Korg BPX-3 Bass Unit Synthesizer Module Made In Japan. Cosmetically, it has seen better days. The 1 button is not fully attached and could be glued into place (still works)."

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Limited Edition Yamaha DX-7 Synth Lapel Pin

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"2" inch enamel pin modeled after the Yamaha DX7 by audio relics"

Check out additional synth lapel pins here. Also see the Synth Bling label.

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Yamaha DX5

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"If you are reading this the chances are that you know exactly what this keyboard is all about, but essentially this is 2 DX7s in a box with a bigger keyboard. I still have the manual and a couple of data cartridges including the DX7 master that has 'master group' + 'keyboard & plucked group'. The other cartridge is a 3rd party product and full of FM sounds from the era. The real joy of this board is that you can double the sounds, slightly detune one bank and the whole thing sounds enormous . For me this is the pick of the DX range."

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TOY #9 CASIO SK-2100 Sampling Keyboard 1987 | HQ DEMO

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AnalogAudio1

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This appears to be the first one featured on the site.

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KORG OPSIX ALTERED FM #SYNTHESIZER | Functions, EFXs and Sound Demo

SOULKEYS

"The #korg #opsix is so intuitive and have really powerful FM sound engine. Got the chance to play around with this #fmsynthesizer and want to share with you. Thank You for watching."

OP-Z Ambient soundscape #2 Winter calmness

Johan Wave

"OP-Z Ambient soundscape #2 Winter calmness. Op-z is sequencing Labs, by Spitfire audio via midi. The sound is called lap steel resonance. I use a few chords and the random effect on some steps to create this soundscape. Sequence programmed on the chord track. Piano played randomly afterwards in Logic (on my computer keyboard). Effects: Internal reverb and Valhalla delay. Hope you like this."