crumar / roland questions.

[Goddard, Duncan]

>>>I recently purchased a Roland RS-09, and it's missing the main volume
knob. 
> The pot is there, but, no knob. This keyboard is from the same era as the 
> sh-09, I think. The design is similar......<<<
> 
can't roland supply one? congrats on finding one of these under-rated
synths- they are "limited", in some views, to cheesy organ and string
sounds, have a short keyboard (is it 4 octaves even?) and no midi, but I
loved the one we had back in 1981. the chorus is great, especially since you
can run other things through it- we used it on 12-string acoustic a lot. I
wish I could find one now.

>>>I have a crumar peformer, I've bugged you all before about it, but, I
have 
> another little problem. The tuning pot in the back is a piece of junk. I 
> cannot get it to 440. It seems to "jump" pitches.....<<<
> 
I've got one of these too; again, under-rated- the strings are wonderfully
gritty and cheap-sounding, and the thing is built like a tank. I had to
replace most of the faders (it had been in a garage) but the rear tuner
gives no trouble. I reckon it probably is a dead spot on the pot; the
symptoms may be a little different than you'd expect because of how the
thing works. it's more like an organ than a synth- maybe someone else on the
list has seen the schematics or knows something about the design, but I have
a feeling that there's a master oscillator and lots of dividing circuits, at
least one for each note. this would explain the notchiness of the tuning
adjustment, especially if the pot's got a dead spot.

d.


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