- Keio Organs Lab - Keio Lab
(univox / maxikorg / K-3)
KORG 770
an early model from 1975
had 2 VCOs , lpf/hpf filter with resonance (not self oscillating set with "bright" switch - 3 positions), simple envelope (AD) but with various switches: sustain / release SWITCHES, so it is a sort of AD(S/R).., it has a nice ringmod - the 800DV consists of 2 channels, so in fact it has 2 filters (per channel), 2 VCOs etc.. but it's called "traveller" instead of cutoff ;)
and again "singing" for sustained sound (release/decay)- so the envelope is "special" ,too but not a full adsr (attack, singing level, mode+range ctrl) .. there was a smaller model called 770, it exaclty one channel of the 800dv.. -->
pic by theo bloderer @ bluesynths.com
it has 2 sub OSC and a ringmod on each channel.. (means one ringmod that uses each channel as input)
wave form changer (!?) and chrous on one waveform.. yes, it is really different, something misses or simply uses different words like expand and traveller (resonance, cutoff hpf + hpf) - good for voice kind of sounds..
Repeat Mode retriggers Env (AD)
for channel a and b same, alternating and holding one of the "voices" etc.. (has a mode switch for it)..
noise: white on one, pink on the other VCO
the DV means dual voice.
interessanter test und sounds zum 800DV von bluesynths.com - macher theo bloderer (german).. hier
...closer look at the Korg?
btw: the minikorg is NOT the 770.. it's the 700
see 800DV..
more info to come ;)
has 2 filters called traveller (lpf / hpf) and 3 position reso switch (no self resonance of course , called "bright")
ringmod (a cool one)
it's envelope uses "singing" and "percussive" instead of the more common ones.. means AD plus switchable Release..
Anleitung?
some Manuals and Schematics stuff about old korgs in english and even more in german can be found here
internally the resonance can be tuned a bit and behind the "chorus" waveform korg has a real PWM mod ready to play.. almost everything on the old korgs is just another name or "reduced" to some other words.. like singing or percussive or sustain for release, that may be because organ manufacturers used sustain as synonym for release.. anyway it is limited in some way.. get one if you love the very old korgs, kitaro, vangelis, maybe human league, old kraftwerk (ok, they are more moog and arp.. to my ears)..
and strange noise sounds ;)
...closer look at the Korg?
pic by theo bloderer @ bluesynths.com
Korg 770 pic thanks to aliens project / bernie - click to enlarge!
1976
very nice sound multiple kinds of ringmodulation (not on this model, the left side has a switch .. on some..) - 2 VCF and resonance "switchable" so no slider for reso but a switch ("bright" again). very unique. since the filters are lpf and hpf, the sliders cannot be set to "elimination" settings - it "locks" the other slider for no collision..
there is an S (korg 700s ) model that has the ringmod switch (on top left (here wooden blank panel)).. very cool to have.. since it has only one vco the is another hidden VCO that can be set to one tone or KB tracking with 3 positions for ringmod. (with/without keytrack) and noise (2 settings). yes, it is simple.. there is one simple sine LFO and "repeat" ..
Korg 700
this pic thanks to aliens project / bernie
...closer look at the Korg?
1974
quite famous synth used in a lot of synthpop tracks of the 70ies and early 80ies..
pic thanks to aliens project / bernie
here's one M-500 (another name for the micropreset) by myself
not much in it, but the old filter sound is still great..
simple envelope (2 sliders) and filter "traveller"
1979
sounds fat, anyway it's one ADSR envelope and one OSC, but it is fat, has a poly section also.
24dB/oct LPF.
below: Lambda.. read on..
click to enlarge..
it's almost a preset one - string synth (kind of) with 3 OSCs per Key (!!). the bass section has a filter the full poly synth (the rest) has one filter for all but lots of envelopes (per key!).. organ and piano sounds
1979
the 900
small preset kind of synth..
1975
..Sigma
