RE: [ElektorFormant] problem with formant pro vco (new design)
2006-04-08 by Kris Bishop
Nice name Waht can I do for you my friend. I had loads of problems with this thing but got there in the end, Would you believe that most of my issues were bad
Messages
Browse messages
Page 4 of 8 · 357 messages matched
RE: [ElektorFormant] problem with formant pro vco (new design)
2006-04-08 by Kris Bishop
I ll reply here and on personal, as the group is here so that people like us can search problems first then ask. I ll help, but moving house so I can only
problem with formant pro vco (new design)
2006-04-07 by ganesha
Hi, I m building the formant pro vco from the book of Hans-Joachim Helmstedt. But I m having a problem that I cannot solve myself. Is there anyone who has
12bd filter, Please help
2006-02-25 by Kris Bishop
Hi folks, Well I m about to move house and lost the argument to keep my synth handy. It will be reinstated as soon as possible however in the mean time I was
formant-elektor vco cem3340
2006-01-06 by iorobyy
Hi guys! I m Roberto from Venice-Italy and i m new in this forum. I m a diy modular synth builder and i m starting to restore and to re-build some modules of
741cp 741cg any difference?
2005-12-23 by the19thbear
hi... i was just wondering if there is any difference between the 741cp and the 741cg... or if they both work in a formant.... thanks.
RE: [ElektorFormant] formant stopped working!!!
2005-10-25 by Kris Bishop
First of all chill, These things are made to test you. All will be fine ;-) First, remind me is this the old formant or the mss2000 version? Second how are you
formant stopped working!!!
2005-10-23 by markfrancombe
OH GOD GUYS...! After a long while carefully removing modules one by one from an old Formant that was dusty and dodgy.. but worked... I fitted new front panels
Re:[ElektorFormant] Re: PSU's suggestions? (OLD THREAD)
2005-09-30 by castef@nomade.fr
I agree with you. A simple resistor is sufficient to see if there is no short circuit, but the unit will not works correctly with such a PSU. I also use
Re: PSU's suggestions? (OLD THREAD)
2005-09-30 by laurence2715
Problem with fitting a resistor in series with the supply rails is that the output side of the resistor no longer remains regulated. A better method would to
Formant Front Plates....
2005-09-29 by Rob & Kathleen
Hi, All i have been tearing an old formant apart, and found that the frontplates are in bad condition. The holes are bigger than original, some are more oval
post the pic in the photos section Jens!!!!
2005-09-29 by markfrancombe
post the pic in the photos section Jens!!!! Attatchments are removed Jens, you must goto http://photos.groups.yahoo.com/group/ElektorFormant/lst and post your
Big formant modular for sale. Now with pictures.
2005-09-29 by Jens walther Jacobsen
Hi Group I have mention it in last week in a reply to an answer. But here it is in all its glory: Big wall to wall Formant modular synth for sale. Build in
Re: Price?
2005-09-28 by Keld Sørensen
Well Jens how about posting the pic - just showing the rest of us how your formant looks? Keld (also from Denmark) ... means ... added ... front ...
RE: [ElektorFormant] Price?
2005-09-24 by Jens Walther
Hi Ole and Group I have a big Formant for sale, and I am situated in Denmark. Big means big. 5 VCO, 6 LFO, 3 VCF, 4 ADSR, 4 VCA, Ring, 2 mixers etc. Nice added
Price?
2005-09-23 by olejeppesen1976
Hello group! I have found a Formant in quite a bad shape. The owner wants 1000 Euro. Is that a fair price, would you think? Best wishes, Ole, Denmark
Re: [ElektorFormant] New member and in need.
2005-08-14 by Dirk Vanden Berghe
Belg? Nederlander? synthesizer11 wrote:Hi group, Just joined and already a post. I bought a formant recently. It was in a bit of a
New member and in need.
2005-08-14 by synthesizer11
Hi group, Just joined and already a post. I bought a formant recently. It was in a bit of a state cosmeticly, but I managed to patch it up a bit. I took a pick
Re: [ElektorFormant] Re: HELP with hot problm...FIXED!!!!
2005-08-13 by harrybissell
... No, you re a hero. Others will see your iron resolve to fix the problem and take courage from your example. wanker would have said screw synthesizers.
Re: HELP with hot problm...FIXED!!!!
2005-08-13 by markfrancombe
FIXED IT!! Well PSU is fixed! What I did.. advice to idiots like me.. I had decided that I would NOT be using the COM module in my refurbish (so anyone wants
Re: HELP with hot problm...Ilve update
2005-08-13 by markfrancombe
(DOH! no edit in Yahoo... and DANG no warning when you leave webpage and come back and your half writing message is gone... 2nd time im writing this... no
Re: HELP with hot problm...
2005-08-13 by markfrancombe
Thanks Kris.. I need all the help I can get (maybe we should take this off list? Dont wanna annoy the old pros s???) ... I think it must be one of the old
RE: [ElektorFormant] HELP with hot problm...
2005-08-11 by Kris Bishop
Hi, Unfortunaelty my adsr worked fine so report was very limited with details about it. Is it a new module MSS2000 or the old one. Lets take it easy and look
Re: HELP with hot problm...
2005-08-09 by markfrancombe
Thanks for the reply harry... ... None taken ..because.. er.. no I dont! ... Hmm seems so... strange because it WAS ok (before I pulled the synth apart to fix
Re: [ElektorFormant] HELP with hot problm...
2005-08-08 by harrybissell
You don t need a MODULE... what you need is a dummy LOAD. (no offense) Do you know how to use Ohms Law ??? I ask because you can
HELP with hot problm...
2005-08-08 by markfrancombe
OK I have tidied up my Old Formant PSU, Hurrah.. looks nice, stuck my (misunderstood) voltmeter on the wires and I get +15 where it should be +5 where THAT
Re: [ElektorFormant] Re: ...but dont forget my PSU post.. (now Help with Voltmeter...?)
2005-07-26 by Laurie Biddulph
Hmmm, MESS!!! I think my bowl of spaghetti at the weekend was tidier than that!!! Looks like a nice little project!!!! Best Regards (Mr) Laurie Biddulph Elby
Re: ...but dont forget my PSU post.. (now Help with Voltmeter...?)
2005-07-26 by markfrancombe
Thanks Laurie, Lots of good advice, I Think the PSU is basically OK, it IS powering the synth right now... but it is a mess!!! Take a look at the photos I
Re: [ElektorFormant] Re: ...but dont forget my PSU post.. (now Help with Voltmeter...?)
2005-07-26 by Laurie Biddulph
Hi, The 5V regulator can be as simple as using a 7805 (3-legged device) and a couple of capacitors. The purists out there will shirk at this approach but for
Re: ...but dont forget my PSU post.. (now Help with Voltmeter...?)
2005-07-26 by markfrancombe
Laurie Biddulph wrote: If I recall correctly, the VCOs ... trivial ... can be ... ahhGh! tHIS WAS EXACTLy what I didnt wanna hear...I
RE: [ElektorFormant] Re: PSU's suggestions? (OLD THREAD)
2005-07-26 by Kris Bishop
Hi, It s fine to use a third party psu for this system, I currently have one from RS. Just make sure the power ratings are ok. To give you an example I had a
Re: [ElektorFormant] ...but dont forget my PSU post.. (now Help with Voltmeter...?)
2005-07-26 by Laurie Biddulph
I have a homemade PSU but CAN state that the Formant WILL work with ANY good, stable power supply that generates +15V and -15V at up to around 500mA (depends
...but dont forget my PSU post.. (now Help with Voltmeter...?)
2005-07-26 by markfrancombe
..as I suspected, my other and more pressing post is left cold and quite.. Im gonna stick it here again... vey bad form I know... but this list is a bit quiet,
THANKS GUYS
2005-07-26 by markfrancombe
HURRAH!.. You guys Rock!!! (as a staid Englishman living in Norway, I ve never said that before... IT FELT GOOD!!) M
Re: [ElektorFormant] correct IC's for ADSR
2005-07-26 by anthony.quintelier@hogent.be
Hello, It s there, under linear integrated circuits, opamps, ua or lm 741, in fact it s the most common operational amplifier that you can find. get the dil-8
Re: [ElektorFormant] correct IC's for ADSR
2005-07-26 by harrybissell
Yes its the cheapest and most common grade of 741 H^) harry
correct IC's for ADSR
2005-07-25 by markfrancombe
Oh and while Im here... incase I have blown my ADSR, can somone tell me what the IC s are? In the manual its says uA 741C, MC1741 CP(MINI DIP) this means
Re: PSU's suggestions? (OLD THREAD)
2005-07-25 by markfrancombe
Thanks for the advice.. I will definately give the resistor idea a go... As for having a voltmeter... well I DO have one, but to be honest, I really don t know
Re: [ElektorFormant] Re: PSU's suggestions? (OLD THREAD)
2005-06-22 by castef@nomade.fr
Hello, a good way to avoyd this kind of problem is to increase the internal resistance of your power supply. You can insert a resistor of a few hundred ohms in
FORMANT original parts
2005-06-19 by dirkyformant
I ve got some used spares for sale: 1 VCF frontplate 1 ADSR frontplate 1 Keyboard INTERFACE frontplate 1 80% populated VCF pcb 1 Interface pcb 1 Interface
Re: [ElektorFormant] Re: PSU's suggestions? (OLD THREAD)
2005-06-18 by Dirk Vanden Berghe
Hi Mark, congratulations first. And to the girlfriend too please. 15Volts is 15Volts no matter what PSU you use. Most probable your ADSR was due to blown
Re: PSU's suggestions? (OLD THREAD)
2005-06-18 by markfrancombe
Hi again, Time has passed and, my Formant overhaul took a short break because: a) I bought a few Blacet modules and have been building them and.. b) Discovered
Two types of Formant front panels: What is the original?
2005-05-30 by biotron02
Hello, I have two types of elektor formant front panels: one of aluminum with black color and without elektor formant logo. the other one of iron, obscure
Additional Prints, Descriptions
2005-05-28 by stecki2
Hi everyone, does anyone have copies of the additional modules released in the book of Richard Aicher ? Or is there an existing list of all formant modules
VCO voltage (regarding compatability with Blacet)
2005-05-21 by markfrancombe
Do any of you fine fellows also possess Blacet stuff in addition to Formant? Ive just built a Blacet Miniwave, and (if you guys know the miniwave)ive been
Re: [ElektorFormant] I need to buy a cheap power supply
2005-05-19 by Kris Bishop
I bought one from RS that has +15 and -15 v with 1.5 amps on each. It s tiny and only cost £40. works a treat and now my synth is up and running, all tuned
Odl Formant PCB numbers
2005-05-19 by Terje Winther
Are there anyone here who knows where I can get a list of old Formant PCB numbers, and what they refer to? I know that i.e. EPS. 9723-1 is the PCB number for
Re: VCO´s
2005-05-19 by laurence2715
Check the dynamic impedence of the psu, if one vco works allways on it s own, then that state s that there is an issue with the psu not delivering enough
VCO´s
2005-05-19 by stecki2
Hi, i finally got the old formant system repaired, and it run´s.. But from time to time the oscillators won´t start . Means, if i switch off and on again,
Re: [ElektorFormant] I need to buy a cheap power supply
2005-05-19 by Dirk Vanden Berghe
... derive 5Vdc with 7805... sorry Dirk Vanden Berghe wrote:I use switch mode PSU s, 2 seperate 15Vdc units, one for +15, one for -15.