Search found 1731 matches

by cornutt
Fri Dec 16, 2016 4:43 pm
Forum: HELP!
Topic: [SOLVED] Juno 106 issue: no saw wave
Replies: 9
Views: 3665

Re: Juno 106 issue: no saw wave

I'll take a look at the schematics this weekend. But yes, the DCOs are saw core, so if the pulse wave is working, the saw has to be working. (The pulse waves are working, right? Not just the sub-oscillator? The reason I ask is because the sub-oscillator isn't derived from the saw; it's derived direc...
by cornutt
Fri Dec 16, 2016 4:20 pm
Forum: General Synthesizers
Topic: Simple "waveshape-core" question
Replies: 24
Views: 1829

Re: Simple "waveshape-core" question

Selfoscillating filters are also good sources of clean sines. Depends heavily on the filter, though. Yeah, in my experience, OTA filters are probably the best at doing that. Which sort of makes sense, because the OTA filter is probably the thing that is closest to a "pure" resonant circuit in the v...
by cornutt
Fri Dec 16, 2016 4:16 pm
Forum: General Synthesizers
Topic: Electrolarynx /others as musical instruments? (answered)
Replies: 7
Views: 1039

Re: Electrolarynx or other non medical musical instruments?

The Sonovox was often used to produce radio station identifications and tags back in the '60s.
by cornutt
Thu Dec 15, 2016 8:35 pm
Forum: General Synthesizers
Topic: New DIY Build - "Sparta" Semi Modular Analogue Synth
Replies: 29
Views: 6096

Re: New DIY Build - Semi Modular Analogue Synth

How do you plan to implement the plug-in VCAs? I recall that one of the Studio Electronics boxes had that, and it was a planned feature for the Waldorf Stromberg.
by cornutt
Thu Dec 15, 2016 8:11 pm
Forum: General Synthesizers
Topic: Simple "waveshape-core" question
Replies: 24
Views: 1829

Re: Simple "waveshape-core" question

WRT triangle core, some triangle core oscs in modular land only have a strange sort of "reversing" soft sync, which sounds kinda fun but can be a real pain for synced LFO applications... I guess hard sync is trickier with a tri core? Not entirely sure... Apparently, sine waves are easier to get cle...
by cornutt
Tue Dec 13, 2016 9:49 pm
Forum: General Synthesizers
Topic: Simple "waveshape-core" question
Replies: 24
Views: 1829

Re: Simple "waveshape-core" question

To add a bit to that: Most VCOs use a sawtooth core circuit. Other circuitry takes the sawtooth wave output by the core and transforms it into whatever other waveforms the VCO produces. Triangle core VCOs are said to have certain advantages in terms of waveform accuracy, but they are more difficult ...
by cornutt
Fri Nov 04, 2016 8:56 pm
Forum: HELP!
Topic: Oberheim Matrix 6 Display Problem
Replies: 4
Views: 2255

Re: Oberheim Matrix 6 Display Problem

plexicube wrote:The short would be in the display itself, or in the driver chip?
I think it's more likely to be in the display itself, but it could be either. If you are handy with a scope, and can find a pinout for the driver IC, you could check it.
by cornutt
Thu Nov 03, 2016 9:47 pm
Forum: HELP!
Topic: Oberheim Matrix 6 Display Problem
Replies: 4
Views: 2255

Re: Oberheim Matrix 6 Display Problem

That's a vacuum fluorescent display and it operates at rather high voltages internally. I'm guessing there is a short somewhere between two driver lines. I'm a bit pessimistic about whether it is fixable, and replacements are hard to find.
by cornutt
Thu Nov 03, 2016 9:26 pm
Forum: General Synthesizers
Topic: Yamaha CS-80 (x2) from Zappa's estate
Replies: 38
Views: 7185

Re: Yamaha CS-80 (x2) from Zappa's estate

scottrod wrote:
:shock:

That photo just officially degassed me for a CS-80.
It does resemble the guts of a Wurlitzer theater organ...
by cornutt
Thu Nov 03, 2016 9:14 pm
Forum: General Synthesizers
Topic: Editor/Librarian for Roland Juno 106?
Replies: 10
Views: 3192

Re: Editor/Librarian for Roland Juno 106?

Got it. Yeah, that sort of thing is really awkward to do with the 106 due to its MIDI limitations.
by cornutt
Wed Nov 02, 2016 8:28 pm
Forum: General Synthesizers
Topic: Editor/Librarian for Roland Juno 106?
Replies: 10
Views: 3192

Re: Editor/Librarian for Roland Juno 106?

I'll be the guy to ask the stupid question: for editing, why wouldn't you just use the panel controls? As for patch downloading and uploading, because the 106 is a very early MIDI implementation, a patch editor can transmit and receive sets of parameters, but you have to do the loading and saving ma...
by cornutt
Wed Nov 02, 2016 8:16 pm
Forum: General Synthesizers
Topic: Need help with vintage synths please!
Replies: 16
Views: 4217

Re: Need help with vintage synths please!

True for violin. Not for piano. Ever been to Preparatory grade recitals? I rest my case :) Yes, and ouch. The worst part is when it's the kid of someone you work for, and you have to sit there and smile... :shock: To get back to the topic: Now that the OP has been properly beaten about the head and...
by cornutt
Wed Nov 02, 2016 7:36 pm
Forum: General Synthesizers
Topic: Your lifelong equipment list
Replies: 84
Views: 13674

Re: Your lifelong equipment list

Automatic Gainsay wrote: Haken:
Continuum
You had a Continuum? What did you think of it?
by cornutt
Fri Oct 28, 2016 6:38 pm
Forum: HELP!
Topic: Yamaha DX7 Faulty/Defectuous powerplug/internal transformer
Replies: 49
Views: 19316

Re: Yamaha DX7 Faulty/Defectuous powerplug/internal transfor

Back in the day, most phonographs had a separate ground wire that you connected to a terminal screw on the amp. Because the output level of a phono cartridge is so low, it was pretty much essential to get noise and hum down to bearable levels.
by cornutt
Fri Oct 28, 2016 6:31 pm
Forum: General Synthesizers
Topic: Your lifelong equipment list
Replies: 84
Views: 13674

Re: Your lifelong equipment list

I'm amazed at the trading some of you guys have done. I'll bet you get to try out some amazing synths that way. I have a hard time letting go of stuff that I like, so I usually wind up keeping it until it dies. The only things I've sold were some rack effects and a few MOTM and Dotcom modules.