Search found 311 matches

by tardishead
Mon Jul 06, 2020 5:15 am
Forum: Music Tech DIY
Topic: 8/16 Step CGS Programmer
Replies: 6
Views: 124

Re: 8/16 Step CGS Programmer

Yes I built them at the same time
I did use 2n39.. transistors in stead of the BC types but I don’t see how that would make a difference
Would voltage followers help?
by tardishead
Mon Jul 06, 2020 3:53 am
Forum: Music Tech DIY
Topic: 8/16 Step CGS Programmer
Replies: 6
Views: 124

Re: 8/16 Step CGS Programmer

In 1x16 mode only the master current source is enabled via the switch
by tardishead
Mon Jul 06, 2020 2:18 am
Forum: Music Tech DIY
Topic: 8/16 Step CGS Programmer
Replies: 6
Views: 124

Re: 8/16 Step CGS Programmer

Bump
by tardishead
Sun Jul 05, 2020 5:55 pm
Forum: Music Tech DIY
Topic: 8/16 Step CGS Programmer
Replies: 6
Views: 124

8/16 Step CGS Programmer

I'm a big fan of this circuit I built one 16 step programmer over 15 years ago and I wanted to build another 2x8 that could be switched to 1x16 I built the 2 modules which work great on their own but then I tried to combine them via a 14p 2t switch. I have used Molex crimp connectors to connect the ...
by tardishead
Sat Jul 04, 2020 4:11 am
Forum: Modular Synth General Discussion
Topic: FM and bells, chimes, metallic tuned instruments
Replies: 8
Views: 256

FM and bells, chimes, metallic tuned instruments

I'm familiar with the idea of using FM to create bells and chimes but wondered how to create something more sophisticated. Say a vibraphone,Marimba, Kalimba or Glockenspiel. Is there any rule of thumb when designing intervals for the 2 FM frequencies? And sometimes FM would not necessarily be involv...
by tardishead
Wed Jun 10, 2020 2:46 pm
Forum: Modular Synth General Discussion
Topic: Strings and saw waves
Replies: 84
Views: 2448

Re: Strings and saw waves

Ah I wrote my reply onto an older version of the thread That graph is very different hey! But it must be weighted differently? I mean if you play the lowest note on a violin it does not sound bass and boomy and has a lot of higher frequencies. But anyway the comb like effect is very interesting. I'm...
by tardishead
Wed Jun 10, 2020 1:24 am
Forum: Modular Synth General Discussion
Topic: Strings and saw waves
Replies: 84
Views: 2448

Re: Strings and saw waves

FWIW Checked my save on the 296e and my jump off point had the 300Hz and 700Hz peaks at around -6db and 0db respectively with sharp cuts in between (-30 to -60 dB). The ramp up to 2khz to 4 kHz maxed out at prob between +4 to +7db. Those measures rely on the accuracy of the 296e’s vertical scale, a...
by tardishead
Tue Jun 09, 2020 5:32 pm
Forum: Modular Synth General Discussion
Topic: Strings and saw waves
Replies: 84
Views: 2448

Re: Strings and saw waves

It also did get me wondering whether some form of spectral transfer between an actual violin sample and the oscillator stack would be helpful? Probably cheating though at that point :wink: Well that would be awesome because the amplitude axis on the Sound On Sound figure has no scale. I could not s...
by tardishead
Sun Jun 07, 2020 2:58 am
Forum: Modular Synth General Discussion
Topic: Strings and saw waves
Replies: 84
Views: 2448

Re: Strings and saw waves

I'm intrigued by Fricko's mention of the resonant peaks of classic violins. But approx how strong are these peaks 3db? Sound on Sound had this figure for response of violin https://dt7v1i9vyp3mf.cloudfront.net/styles/news_large/s3/imagelibrary/f/fig02boverallvspectrum-BDMpiVRJsJss_KAKUxyj4NqPvS3WeXz...
by tardishead
Sat Jun 06, 2020 5:37 pm
Forum: Modular Synth General Discussion
Topic: Strings and saw waves
Replies: 84
Views: 2448

Re: Strings and saw waves

Really intrigued by a lot of the stuff in this thread and enjoying incorporating some new techniques. Mixing the pulse in with saw waves really works for me. Adds way more realism IMO A bit confused about the use of noise as a FM source. Should noise be proportional to volume. As string gets louder ...
by tardishead
Thu May 28, 2020 3:55 am
Forum: Modular Synth General Discussion
Topic: Strings and saw waves
Replies: 84
Views: 2448

Re: Strings and saw waves

perhaps a bit of portamento to model it as fretless ... Typical portamento-glide wil be backwards or missing correct relationship. Expo = slow to start building as 'distance' is covered, ending quickly. Linear = constant change rate. Neither is what actually happens. You need S-shaped transitions. ...
by tardishead
Fri May 15, 2020 4:45 am
Forum: Music Tech DIY
Topic: LED bar displays scanner
Replies: 2
Views: 115

LED bar displays scanner

I’m looking at options for LED bar displays for a scanner I’m building. Something like Knight Rider ha! I only have 8 stages I’ve seen the usual bars standard 2.54mm spacing with vertical mounted LEDs which are a bit small but there are wider ones with horizontal LEDs. Unfortunately I can’t find 8 s...
by tardishead
Sun Apr 26, 2020 12:50 pm
Forum: Music Tech DIY
Topic: CGS514
Replies: 52
Views: 2151

Re: CGS514

I’ve been building CGS stuff for 20 years Never had any issues with Ken’s stuff mainly because of the included schematic even though a lot of people moan about CGS stuff I bought a batch of about 10 new PCBs from Elby to see that they had all changed to “better” versions and none of the schematics w...
by tardishead
Sat Mar 28, 2020 5:06 pm
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

Since tardishead still hasn't let us know his intent for the circuit this may matter. Umm I certainly tried to about 10 posts ago! To be able to turn on a continuous logic high to reverse a sequencer or switch a Serge BI DI SWITCH for example I guess if the slowness is audible that might cause prob...
by tardishead
Sat Mar 28, 2020 3:35 pm
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

Is this what you're after? http://tinyurl.com/u2huwmp tardishead did you see my interactive example? Graham Hinton , curious to hear your thoughts on it. Yes absolutely It looks elegantly simple! I already have 2 discrete inverters in my modular I presume I canI replicate this with them?
by tardishead
Sat Mar 28, 2020 3:04 pm
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

Yes absolutely
It looks elegantly simple!
I already have 2 discrete inverters in my modular
I presume I canI replicate this with them?
by tardishead
Sat Mar 28, 2020 12:35 pm
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

msboude wrote:
Sat Mar 28, 2020 11:22 am
Yep yep! I guess I should have stated that the doepfer does a gate out that will stay high..
Really that’s interesting
I bet there aren’t many dividers out there that do that
by tardishead
Sat Mar 28, 2020 11:07 am
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

A simple clock divider like the doepfer can be used as a toggle at its /2 output. Yeh I've got a CGS pulse divider but the output divisions are all the same pulse width as the clock they're dividing. Not a continuous high voltage like I need (until next trigger). Thats why I suggested the 4017 togg...
by tardishead
Sat Mar 28, 2020 10:40 am
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

I see where you get your name.. you address someone giving you shit... but dont address the people that are actually helping you and drawing out circuits you dick. Ummm I do apologise! I really appreciate it. I am actually trying to learn and understand the options given by everyone. I answered the...
by tardishead
Sat Mar 28, 2020 3:47 am
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

Better questions get better answers. What are you actually trying to do Ok sorry I thought I had explained this. I want to use a trigger to toggle between 2 states, a continuous high and continuous low. Certain functions require a continuous high voltage to turn on Reverse function on a sequencer A...
by tardishead
Fri Mar 27, 2020 1:09 pm
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

Are you trying to toggle a signal or a switchbutton? There are differences. I want to use a trigger to toggle between 2 states, a continuous high and continuous low. 4017 is another way of doing it right? Just reset on the 3rd count so it toggles between 2 positions, take the output from one positi...
by tardishead
Fri Mar 27, 2020 5:32 am
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

I found this circuit. Forgive my ignorance - it will turn on with a trigger but will it turn off with the next trigger?
Image
by tardishead
Thu Mar 26, 2020 4:24 pm
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Re: Logic Toggle Latch

EATyourGUITAR wrote:
Thu Mar 26, 2020 3:51 pm
CD4013 with the not Q connected to data input. clock input is your button or your input. Q OUT is your output. use the Set and Reset pins if you need a reset button in a specific state.
Great thanks
So I presume I should buffer the output with a transistor?
by tardishead
Thu Mar 26, 2020 12:59 pm
Forum: Music Tech DIY
Topic: Logic Toggle Latch
Replies: 43
Views: 727

Logic Toggle Latch

I need to build a simple toggle latch
What is the easiest way?
I thought use a 4027 JK Flip flop - short J and K inputs and connect clk to V+ if I don’t need it clocked?

Go to advanced search