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VCO153 project in board test phase
Hey folks, its been a while, but I have this thing in testing right now. This is an equivalent circuit to the IG00153. This differs from my MOTM-style modular 153 oscillator in that it is strictly the VCO IC with a ramp output, linear CV input, current bias input (FT) for octave select and exponential modulation (vibrato) input. It can use the original M-board FET and charge pump capacitor, or those can be removed and local ones installed. I made this mainly to see about replacing things at the chip level, but not relying on custom devices. It is 98% SMT parts, with only 3 parts left through-hole for the moment (mainly to swap things and see how the specs change). It no longer needs an input offset trimmer, or external frequency compensation of the input summing amp. The DIL-16 footprint in the middle of the board is used to install it into an actual IG00153 socket. Generally it is low-profile enough to fit between M boards (it does in my CS-50). It has internal temperature compensation of the charge switch and comparator, making it much more stable than the original device. The charge pump core circuit runs on its own internal 10V reference supply.
Eventually I want to craft the entire M-board from standard circuits. The waveshaper is done (it is the one I made for the 153 module). The EGs are done. The filters are done. I know how to build the VCA, thats next. In any case here is an image of the board, a bit larger than actual size. More later... Crow /**/ |
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Re: Should I keep my CS-50
However..... the good thing about your CS80/60/50s are, you can
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service them..... Todays synths are not like that...you would be looking for entire modules or entire synths on a chip to replace....from a Technicians view point.....you can keep it alive as long as you can diagnose problems, and find those special chips... -----Original message-----
From: Richard Atkinson rga24@... Date: Tue, 17 Mar 2009 03:25:47 -0600 To: yamahacs80@... Subject: Re: [yamahacs80] Should I keep my CS-50 Keep your CS-50, David!! MIDI or no MIDI, the CS-50 is a wonderful instrument in its own right. Yamaha's chips don't seem to be any more or any else reliable than any other manufacturer's. The problem with the CS-80 (and to a much lesser extent the CS-60) is the sheer number of components inside the device. Even if the chance of any one component failing is very small, on the CS-80 the meantime between failures is shorter because there are so many more chances for something to go wrong. More rolls of the dice, if you will. On Mar 16 2009, David wrote: Help me decide to keep my Yamaha CS-50. Im considering getting the to believe that perhaps Yamaha got it wrong in the engineering of 106 voice chip--the question I ask is it all worth it if each timeyou turn on the machineengineering side as the CS-60 or CS-80 looking at the postsfailure like the CS-60 and CS-80 |
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Re: Should I keep my CS-50
Keep your CS-50, David!!
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MIDI or no MIDI, the CS-50 is a wonderful instrument in its own right. Yamaha's chips don't seem to be any more or any else reliable than any other manufacturer's. The problem with the CS-80 (and to a much lesser extent the CS-60) is the sheer number of components inside the device. Even if the chance of any one component failing is very small, on the CS-80 the mean time between failures is shorter because there are so many more chances for something to go wrong. More rolls of the dice, if you will. On Mar 16 2009, David wrote:
Help me decide to keep my Yamaha CS-50. Im considering getting the midi retrofit and keeping it forever...............but |
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Re: Should I keep my CS-50
David
Thanks Stephen
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What maintainence is required apart from changing PSU tantalium caps every 15 years or so? On 17/03/2009, at 10:58 PM, Wavecomputer360 wrote:
The fact that the CS50 is the least fancy of the bunch makes it the |
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Re: Should I keep my CS-50
The fact that the CS50 is the least fancy of the bunch makes it the most reliable. So if it?s working well and gets maintained on a regular basis, keep it. Otherwise sell it to someone who might need it as an organ-donor (I?d get myself a 50 in an instant if I had the chance to buy one locally).
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Stephen ____________________________________________________________________ "Ambition makes you look pretty ugly, kicking squealing Gucci little piggy." (Thom Yorke/Radiohead -- "Paranoid Android") Stephen Parsick live in concert: Bochum Planetarium (Germany), 13th of December, 2008, 08:00 pm. Finally available: Stephen Parsick -- Traces of the Past Redux, reissued with three previously unreleased bonus tracks. For more info please check www.parsick.com For legal downloads please check: ----- Original Message -----
From: David To: yamahacs80@... Sent: Monday, March 16, 2009 7:50 PM Subject: [yamahacs80] Should I keep my CS-50 Help me decide to keep my Yamaha CS-50. Im considering getting the midi retrofit and keeping it forever...............but All this talk here about chips blowing up on CS-60 and CS-80 leads me to believe that perhaps Yamaha got it wrong in the engineering of these two models From the posts here the track record seems as bad as the Roland Juno 106 voice chip--the question I ask is it all worth it if each time you turn on the machine you worry about a chip failure? On the other hand the CS-50 does not seem as flawed in the engineering side as the CS-60 or CS-80 looking at the posts Have I got this right about the CS-50 ? Its not an engineering failure like the CS-60 and CS-80 thanks in advance David [Non-text portions of this message have been removed] |
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Re: Should I keep my CS-50
The CS50 is a good compromise in terms of usability and manteinance; Laurie is pretty right in this concern: the total number of sold CS polyphonics has to face the fact that many of the small units were used as spare parts for the big CS80 or the CS60 so there aren't many left; in any case if you keep the instrument in a good shape, meaning with it a dirt free, constant moistness and temperature room, keeping also the contacts clean , with an eye to the PSU and, if avaliable, a current stabilizer if you live in an old building, your CS-50 will last forever.
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M ----- Original Message -----
From: David To: yamahacs80@... Sent: Monday, March 16, 2009 7:50 PM Subject: [yamahacs80] Should I keep my CS-50 Help me decide to keep my Yamaha CS-50. Im considering getting the midi retrofit and keeping it forever...............but All this talk here about chips blowing up on CS-60 and CS-80 leads me to believe that perhaps Yamaha got it wrong in the engineering of these two models From the posts here the track record seems as bad as the Roland Juno 106 voice chip--the question I ask is it all worth it if each time you turn on the machine you worry about a chip failure? On the other hand the CS-50 does not seem as flawed in the engineering side as the CS-60 or CS-80 looking at the posts Have I got this right about the CS-50 ? Its not an engineering failure like the CS-60 and CS-80 thanks in advance David |
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Re: Should I keep my CS-50
there is no engineering flaw in a mid 70s instrument that still works.
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the only flaw was the dicontinuing of the chips.. .many companies will rise and fall within that similar?time period... I have had many disposable synths that came and went while this remained... -----Original message-----
From: David d2ba@... Date: Mon, 16 Mar 2009 11:50:02 -0600 To: yamahacs80@... Subject: [yamahacs80] Should I keep my CS-50 Help me decide to keep my Yamaha CS-50. Im considering getting theme to believe that perhaps Yamaha got it wrong in the engineering of 106 voice chip--the question I ask is it all worth it if each timeyou turn on the machineengineering side as the CS-60 or CS-80 looking at the postsfailure like the CS-60 and CS-80 [Non-text portions of this message have been removed] |
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Should I keep my CS-50
David
Help me decide to keep my Yamaha CS-50. Im considering getting the midi retrofit and keeping it forever...............but
All this talk here about chips blowing up on CS-60 and CS-80 leads me to believe that perhaps Yamaha got it wrong in the engineering of these two models From the posts here the track record seems as bad as the Roland Juno 106 voice chip--the question I ask is it all worth it if each time you turn on the machine you worry about a chip failure? On the other hand the CS-50 does not seem as flawed in the engineering side as the CS-60 or CS-80 looking at the posts Have I got this right about the CS-50 ? Its not an engineering failure like the CS-60 and CS-80 thanks in advance David |
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Re: difference betweeen a cs-50 and cs-60
Brady Groscost
sweet---i thought the pitch ribbon was only on the cs-80.
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--- On Thu, 3/12/09, David Rogoff <david@...> wrote:
From: David Rogoff <david@...> Subject: Re: [yamahacs80] difference betweeen a cs-50 and cs-60 To: yamahacs80@... Date: Thursday, March 12, 2009, 6:49 PM Also, the 50 is a four-octave keyboard. The 60 is five-octave and adds the pitch ribbon. Max Fazio wrote: CS-50= 4 voices, 1 synthline, only factory prestes/panel switch, no effects, relatively light and easy to mantain CS-60= 8 voices, 1 synthline, factory presets/panel switch+1 user preset (hidden micro panel under the up left lid), heavier, little more expensive to mantain due to doubled number of voices M ----- Original Message ----- From: Jo Jo Hillingsworth To: yamahacs80@yahoogro ups.com Sent: Friday, March 13, 2009 2:30 AM Subject: [yamahacs80] difference betweeen a cs-50 and cs-60 A cs-80 is a little out of my price range. can someone tell me the difference between a 50 and a 60? |
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Re: difference betweeen a cs-50 and cs-60
Also, the 50 is a four-octave keyboard. The 60 is five-octave and adds the pitch ribbon.
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Max Fazio wrote: CS-50= 4 voices, 1 synthline, only factory prestes/panel switch, no effects, relatively light and easy to mantain |
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Re: difference betweeen a cs-50 and cs-60
CS-50= 4 voices, 1 synthline, only factory prestes/panel switch, no effects, relatively light and easy to mantain
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CS-60= 8 voices, 1 synthline, factory presets/panel switch+1 user preset (hidden micro panel under the up left lid), heavier, little more expensive to mantain due to doubled number of voices M ----- Original Message -----
From: Jo Jo Hillingsworth To: yamahacs80@... Sent: Friday, March 13, 2009 2:30 AM Subject: [yamahacs80] difference betweeen a cs-50 and cs-60 A cs-80 is a little out of my price range. can someone tell me the difference between a 50 and a 60? |
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Re: Another CS80 contribution
NIce..mooody...tempermental...provocative and evocative template
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of sound. Thanks! --- On Thu, 3/12/09, Will Blair <billyblair@...> wrote:
From: Will Blair <billyblair@...> Subject: Re: [yamahacs80] Another CS80 contribution To: yamahacs80@... Date: Thursday, March 12, 2009, 2:52 AM I have to say that this is really worth listening to... For me, at least, this is how the CS80 should sound. ----- Original Message ----- From: Max Fazio To: yamahacs80@yahoogro ups.com Sent: Saturday, March 07, 2009 11:17 PM Subject: [yamahacs80] Another CS80 contribution Enjoy! . com/watch? v=mUuZ_iR3ZmA& feature=related M [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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Re: my afternoon with dave eggar
yea, mics were definitely not running. oh well. he's gonna record a piece i wrote for an album later this year, and he mentioned doing some improv on tape. maybe then? we'll see.....
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--- On Wed, 3/11/09, Tommy Priakos <tpriakos@...> wrote:
From: Tommy Priakos <tpriakos@...> Subject: Re: [yamahacs80] Re: my afternoon with dave eggar To: yamahacs80@... Date: Wednesday, March 11, 2009, 6:11 PM Awesome! RJ, ? We all have no doubt the CS-80 was able to stand out, no matter what chops the owner possesses. My CS-80 sense tells me the jam came together so unexpectedly that no recording was made, unless there's some device where you can go back and recapture the "evanescence" of that day! ? ; ) --- On Wed, 3/11/09, Jim Combs <jwcombs@bellsouth. net> wrote: From: Jim Combs <jwcombs@bellsouth. net> Subject: [yamahacs80] Re: my afternoon with dave eggar To: yamahacs80@yahoogro ups.com Date: Wednesday, March 11, 2009, 7:19 AM --- In yamahacs80@yahoogro ups.com, rj krohn <r_j_d_2.phila@ ...> wrote: so a childhood music friend of mine came over today with a buddy of his, who's name is dave eggar. he is apparently the "other half" of the musical group evanescence, as well as an accomplished cellist, solo artist, nyc session man extraordinaire( played snl this week w/ ray lamontaine). perfect pitch, julliard grad, blah blah blah-basically, much more of a "real" musician than i......one of those genius types..... Very cool RJ! My daughter is a/used to be a big fan of Evanescence (the half-life of coolness for a teenager is remarkably short these days, so hard to know if they're still on her cool list). And she used to play cello and stand up bass. So will tell her this story. Thanks for the share! -Jim, who used his CS-50 on a new recording by his alt folk band; a string patch on a faux spaghetti western tune called Yo No Puedo Hablar Espaniol. [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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Re: Another CS80 contribution
Will Blair
I have to say that this is really worth listening to... For me, at least, this is how the CS80 should sound.
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----- Original Message -----
From: Max Fazio To: yamahacs80@... Sent: Saturday, March 07, 2009 11:17 PM Subject: [yamahacs80] Another CS80 contribution Enjoy! M |
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Re: my afternoon with dave eggar
Awesome! RJ,
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? We all have no doubt the CS-80 was able to stand out, no matter what chops the owner possesses. My CS-80 sense tells me the jam came together so unexpectedly that no recording was made, unless there's some device where you can go back and recapture the "evanescence" of that day! ? ; ) --- On Wed, 3/11/09, Jim Combs <jwcombs@...> wrote:
From: Jim Combs <jwcombs@...> Subject: [yamahacs80] Re: my afternoon with dave eggar To: yamahacs80@... Date: Wednesday, March 11, 2009, 7:19 AM --- In yamahacs80@yahoogro ups.com, rj krohn <r_j_d_2.phila@ ...> wrote: so a childhood music friend of mine came over today with a buddy of his, who's name is dave eggar. he is apparently the "other half" of the musical group evanescence, as well as an accomplished cellist, solo artist, nyc session man extraordinaire( played snl this week w/ ray lamontaine). perfect pitch, julliard grad, blah blah blah-basically, much more of a "real" musician than i......one of those genius types.....Very cool RJ! My daughter is a/used to be a big fan of Evanescence (the half-life of coolness for a teenager is remarkably short these days, so hard to know if they're still on her cool list). And she used to play cello and stand up bass. So will tell her this story. Thanks for the share! -Jim, who used his CS-50 on a new recording by his alt folk band; a string patch on a faux spaghetti western tune called Yo No Puedo Hablar Espaniol. |
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Re: my afternoon with dave eggar
--- In yamahacs80@..., rj krohn <r_j_d_2.phila@...> wrote:
so a childhood music friend of mine came over today with a buddy of his, who's name is dave eggar. he is apparently the "other half" of the musical group evanescence, as well as an accomplished cellist, solo artist, nyc session man extraordinaire(played snl this week w/ ray lamontaine). perfect pitch, julliard grad, blah blah blah-basically, much more of a "real" musician than i......one of those genius types.....Very cool RJ! My daughter is a/used to be a big fan of Evanescence (the half-life of coolness for a teenager is remarkably short these days, so hard to know if they're still on her cool list). And she used to play cello and stand up bass. So will tell her this story. Thanks for the share! -Jim, who used his CS-50 on a new recording by his alt folk band; a string patch on a faux spaghetti western tune called Yo No Puedo Hablar Espaniol. |
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Re: my afternoon with dave eggar
Like Ralph Grierson once said, the CS80 is the only synthesiser which can stand up against an orchestra. There?s a natural feel and acoustic quality about that instrument I haven?t quite found on any other synthesisers I?ve played over the past twenty years.
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I hope you recorded this performance, just in case something magical happened. Stephen ____________________________________________________________________ "Ambition makes you look pretty ugly, kicking squealing Gucci little piggy." (Thom Yorke/Radiohead -- "Paranoid Android") Stephen Parsick live in concert: Bochum Planetarium (Germany), 13th of December, 2008, 08:00 pm. Finally available: Stephen Parsick -- Traces of the Past Redux, reissued with three previously unreleased bonus tracks. For more info please check www.parsick.com For legal downloads please check: ----- Original Message -----
From: rj krohn To: yamahacs80@... Sent: Wednesday, March 11, 2009 12:43 AM Subject: [yamahacs80] my afternoon with dave eggar so a childhood music friend of mine came over today with a buddy of his, who's name is dave eggar. he is apparently the "other half" of the musical group evanescence, as well as an accomplished cellist, solo artist, nyc session man extraordinaire(played snl this week w/ ray lamontaine). perfect pitch, julliard grad, blah blah blah-basically, much more of a "real" musician than i......one of those genius types..... so he had his cello, as he was down here for a gig, and he suggested jamming, so... we jammed. i naturally chose the cs80 over the hammond/rhodes/wurly/30+ other synths i have here. as he is a fan of microtonal music, he pushed things into a world exploring things outside of a 12-tone western perspective, yet still using that old western standard (albiet sparingly) as an occasional reference point. my buddy chuck played hand percussion. i've never been a big fan of "free jazz", but this afternoon was one of the most musically invigorating experiences ive had in a LONG time(years?). with use of the ring mod, aftertouch, ribbon, expression pedals, i was able to follow(and lead), right along with him. dynamically, were were able to breathe so fucking naturally, i couldnt believe it. ever had a musical rush that didnt wear off for hours afterward? there it was. and i dont think there was one other instrument i could have maneuvered as deftly. dave commented at how "perfect" the instrument was, and how much more inspiring it was (as a cellist, no less!) than a piano. cello, cs80, and hand percussion. texturally, it was just gorgeous. hopefully its clear im not touting any level of ability here(there a many people on this list with better "chops" than i), merely a testament to yet another day when the cs80 shone bright. just thought i'd share yet another story about the beauty of the instrument..... best, rj [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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Re: my afternoon with dave eggar
just thought i'd share yet another story about the beauty of the instrument.....
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Great story, RJ, now why don't you share also some audio bits of that happening (heart-shaped eyes while writing...) ?? M ----- Original Message -----
From: rj krohn To: yamahacs80@... Sent: Wednesday, March 11, 2009 12:43 AM Subject: [yamahacs80] my afternoon with dave eggar so a childhood music friend of mine came over today with a buddy of his, who's name is dave eggar. he is apparently the "other half" of the musical group evanescence, as well as an accomplished cellist, solo artist, nyc session man extraordinaire(played snl this week w/ ray lamontaine). perfect pitch, julliard grad, blah blah blah-basically, much more of a "real" musician than i......one of those genius types..... so he had his cello, as he was down here for a gig, and he suggested jamming, so... we jammed. i naturally chose the cs80 over the hammond/rhodes/wurly/30+ other synths i have here. as he is a fan of microtonal music, he pushed things into a world exploring things outside of a 12-tone western perspective, yet still using that old western standard (albiet sparingly) as an occasional reference point. my buddy chuck played hand percussion. i've never been a big fan of "free jazz", but this afternoon was one of the most musically invigorating experiences ive had in a LONG time(years?). with use of the ring mod, aftertouch, ribbon, expression pedals, i was able to follow(and lead), right along with him. dynamically, were were able to breathe so fucking naturally, i couldnt believe it. ever had a musical rush that didnt wear off for hours afterward? there it was. and i dont think there was one other instrument i could have maneuvered as deftly. dave commented at how "perfect" the instrument was, and how much more inspiring it was (as a cellist, no less!) than a piano. cello, cs80, and hand percussion. texturally, it was just gorgeous. hopefully its clear im not touting any level of ability here(there a many people on this list with better "chops" than i), merely a testament to yet another day when the cs80 shone bright. just thought i'd share yet another story about the beauty of the instrument..... best, rj |
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my afternoon with dave eggar
so a childhood music friend of mine came over today with a buddy of his, who's name is dave eggar. he is apparently the "other half" of the musical group evanescence, as well as an accomplished cellist, solo artist, nyc session man extraordinaire(played snl this week w/ ray lamontaine). perfect pitch, julliard grad, blah blah blah-basically, much more of a "real" musician than i......one of those genius types.....
so he had his cello, as he was down here for a gig, and he suggested jamming, so... we jammed. i naturally chose the cs80 over the hammond/rhodes/wurly/30+ other synths i have here. as he is a fan of microtonal music, he pushed things into a world exploring things outside of a 12-tone western perspective, yet still using that old western standard (albiet sparingly) as an occasional reference point.? my buddy chuck played hand percussion. i've never been a big fan of "free jazz", but this afternoon was one of the most musically invigorating experiences ive had in a LONG time(years?). with use of the ring mod, aftertouch, ribbon, expression pedals, i was able to follow(and lead), right along with him. dynamically, were were able to breathe so fucking naturally, i couldnt believe it.? ever had a musical rush that didnt wear off for hours afterward? there it was. and i dont think there was one other instrument i could have maneuvered as deftly. dave commented at how "perfect" the instrument was, and how much more inspiring it was (as a cellist, no less!) than a piano. cello, cs80, and hand percussion. texturally, it was just gorgeous. hopefully its clear im not touting any level of ability here(there a many people on this list with better "chops" than i), merely a testament to yet another day when the cs80 shone bright. just thought i'd share yet another story about the beauty of the instrument..... best, rj [Non-text portions of this message have been removed] |
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