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In my experience - NANDulators with 12-15V supplies can be hard to wake if the charge capacitors are in the xxxuf range.

R

potential impedance mismatches

suggest you build bit by bit and test with a cheap oscilloscope
then join together bit by bit and test with a cheap oscilloscope
you'll see the above if they are th ...

as mentioned R

I did a 2 bit switch with a CD4532, TL074 and a DG409 in my 100mm standard.
Passes 4>1 or 1>4 under the control of a 4532 without clocking.
Something nice about unclocked LED indication!

R

V=IR if you don't have a resistance there's no circuit - voltage measurable or current seen.
10k is a standard load to give our 40106 output transistors an easy time. If it was 10 ohms they'd be tryi ...

Thumbwheel selector switch in a Lunetta environment = 4522B for preset decade down counter division

or 40102B for a pair

clock/n or frequency synthesis with 4046 -see EMM Harmonic Engine

R

The 6N2 is a 6.3V tube. You can't use 9V DC unless you use a 9 ohm 3W resistor (likely two 4.7ohms) to drop the voltage down at 300mA .Valves will burn through your batteries quickly, a dedicated 6V t ...

Suggest you breadboard the idea, to confirm that this will make worthwhile sound.
As an engineering procedure it could be informative; I found that ldrs aren't that musically suited to NANDulators f ...

The 2mm ones will be for the small bananas.
It's a french company.
http://www.electro-pjp.com/en/familles

You can ask if they have a US distributor - best to do a google translate of your questio ...

yes, tougher than pcb traces and they hold the plugs vertically as well as typical sockets.

R

I've been using these at 4mm in pcb holes.
I see they're available for 2mm.
Work fine, just a little solder time.

https://www.rapidonline.com/pjp-20052cd1000-economical-2mm-pcb-socket-17-1042

...

Interesting thinking!
I'm not saying this is of any use but I did play with the n-channel depletion fet LND150 as a LED driver.

R

What supply voltage are you using?

I had a strange experience with some square wave generation like this where the 40106s (HEF.... IIRC)I had at hand got burning hot at 15V. Never understood why b ...

I did it with 3 pcbs :mother/daughter/slider- used 4022 for 8 faders and 4040 for mega division. Jumpers rather than rotary.

As there's a lot of 4070 real estate sitting around looking for Chinese ...

I use those voltmeters on each rail; on lights with an additional safety feature.
If there's a fault, accuracy is not the issue, immediacy is.

For Grumble's application I like these
https://cpc.f ...

More inclined to covered terminals

Here's the icing for the cake
https://www.aliexpress.com/item/Mini-Digital-Voltmeter-Voltage-Tester-Meter-0-28-Inch-2-5V-30V-LED-Screen-Electronic-Parts/328548 ...

thick wire
Rod is better or the chassis itself.

Why do you need such a big drop?
Cost.
Big current 24V SMPS are cheap as are standard non-LDO regulators.
High frequency noise can be an issue w ...

The most important element in a modular is the ground, everything is referenced to that.
Secondly stiff power rails. Think that the power supply has impedances and rocks like an ac signal if you're n ...

That's a nice little Christmas gift Mr.Grumble!

Do you use Circuitmaker?

Don't like the look of this especially when DJ is making the claims

https://www.eevblog.com/forum/altium/busted-altium ...

Could be done with a cheap chinese CPLD development board; my adaption of Richarius's 4015 matrix used as such.

http://electro-music.com/forum/topic-69221

the last post is the actual programmi ...

oh interesting, I didn't realize it has the counter built in until I checked the datasheet
Yes, Mike seems to have brought to our attention to a very interesting device.
I look forward to seeing wh ...

Well, stick various pulses into clk and direction, in any relationship. Then use another pulse to sample and hold the output of W. Use A and B to figure range. Lunetta to pitch CV.

I'm pointing to ...

off the top of my head(as usual)

This looks like part of an interesting pitch quantizer with a paralleled gating system to cut out increments.

R

http://electro-music.com/forum/phpbb-files/eti_sequencer_759.pdf

File already here
There's at least three magazine projects, the Oberheim and SCI products...
Could do the link in a CPLD.

R

Doesn't someone in the market for the latest generation 'scope - buy the best Tek/Keysight/Rohde/LeCroy etc they can get/justify and will then offset the purchase against tax through their business?
...

Author	Message
Topic: 4093 - Strange Behaviour
piedwagtail Replies: 10 Views: 7368	Posted: Sat Jun 18, 2022 2:37 pm Subject: 4093 - Strange Behaviour Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 10 Views: 7368	In my experience - NANDulators with 12-15V supplies can be hard to wake if the charge capacitors are in the xxxuf range. R
Topic: AC Coupling, a mixer and a reverb..!
piedwagtail Replies: 9 Views: 5219	Posted: Tue Mar 08, 2022 2:11 pm Subject: AC Coupling, a mixer and a reverb..! Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 9 Views: 5219	potential impedance mismatches suggest you build bit by bit and test with a cheap oscilloscope then join together bit by bit and test with a cheap oscilloscope you'll see the above if they are th ...
Topic: adc 3bit flash ic
piedwagtail Replies: 8 Views: 6406	Posted: Sun Mar 06, 2022 9:44 am Subject: adc 3bit flash ic Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 8 Views: 6406	as mentioned R
Topic: adc 3bit flash ic
piedwagtail Replies: 8 Views: 6406	Posted: Sat Mar 05, 2022 7:20 pm Subject: adc 3bit flash ic Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 8 Views: 6406	I did a 2 bit switch with a CD4532, TL074 and a DG409 in my 100mm standard. Passes 4>1 or 1>4 under the control of a 4532 without clocking. Something nice about unclocked LED indication! R
Topic: mixing oscillators with diodes - help
piedwagtail Replies: 4 Views: 4152	Posted: Fri Jan 15, 2021 4:22 pm Subject: mixing oscillators with diodes - help Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 4 Views: 4152	V=IR if you don't have a resistance there's no circuit - voltage measurable or current seen. 10k is a standard load to give our 40106 output transistors an easy time. If it was 10 ohms they'd be tryi ...
Topic: Need ideas for what to do with this cool old part
piedwagtail Replies: 4 Views: 4928	Posted: Wed Sep 09, 2020 5:28 pm Subject: Need ideas for what to do with this cool old part Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 4 Views: 4928	Thumbwheel selector switch in a Lunetta environment = 4522B for preset decade down counter division or 40102B for a pair clock/n or frequency synthesis with 4046 -see EMM Harmonic Engine R
Topic: Substituting 6N2P tube in LMNC Safety Valve VCA
piedwagtail Replies: 4 Views: 5503	Posted: Sat Apr 11, 2020 9:06 am Subject: Substituting 6N2P tube in LMNC Safety Valve VCA Forum: DIY Hardware and Software
piedwagtail Replies: 4 Views: 5503	The 6N2 is a 6.3V tube. You can't use 9V DC unless you use a 9 ohm 3W resistor (likely two 4.7ohms) to drop the voltage down at 300mA .Valves will burn through your batteries quickly, a dedicated 6V t ...
Topic: NANDulator
piedwagtail Replies: 116 Views: 160326	Posted: Sat Oct 26, 2019 8:47 am Subject: NANDulator Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 116 Views: 160326	Suggest you breadboard the idea, to confirm that this will make worthwhile sound. As an engineering procedure it could be informative; I found that ldrs aren't that musically suited to NANDulators f ...
Topic: Need CMOS patcher with a lot of I/O. Ideas?
piedwagtail Replies: 40 Views: 33999	Posted: Mon Oct 07, 2019 10:20 am Subject: Need CMOS patcher with a lot of I/O. Ideas? Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 40 Views: 33999	The 2mm ones will be for the small bananas. It's a french company. http://www.electro-pjp.com/en/familles You can ask if they have a US distributor - best to do a google translate of your questio ...
Topic: Need CMOS patcher with a lot of I/O. Ideas?
piedwagtail Replies: 40 Views: 33999	Posted: Mon Oct 07, 2019 5:25 am Subject: Need CMOS patcher with a lot of I/O. Ideas? Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 40 Views: 33999	yes, tougher than pcb traces and they hold the plugs vertically as well as typical sockets. R
Topic: Need CMOS patcher with a lot of I/O. Ideas?
piedwagtail Replies: 40 Views: 33999	Posted: Sun Oct 06, 2019 1:30 pm Subject: Need CMOS patcher with a lot of I/O. Ideas? Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 40 Views: 33999	I've been using these at 4mm in pcb holes. I see they're available for 2mm. Work fine, just a little solder time. https://www.rapidonline.com/pjp-20052cd1000-economical-2mm-pcb-socket-17-1042 ...
Topic: Voltage controlled Resistance
piedwagtail Replies: 7 Views: 10609	Posted: Sun Mar 31, 2019 2:51 pm Subject: Voltage controlled Resistance Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 7 Views: 10609	Interesting thinking! I'm not saying this is of any use but I did play with the n-channel depletion fet LND150 as a LED driver. R
Topic: Noisy (ungrounded?) 40106
piedwagtail Replies: 10 Views: 11437	Posted: Thu Mar 28, 2019 4:14 pm Subject: Noisy (ungrounded?) 40106 Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 10 Views: 11437	What supply voltage are you using? I had a strange experience with some square wave generation like this where the 40106s (HEF.... IIRC)I had at hand got burning hot at 15V. Never understood why b ...
Topic: The DoubleDeka Ultrasonic VCO
piedwagtail Replies: 144 Views: 182625	Posted: Mon Feb 25, 2019 10:11 am Subject: The DoubleDeka Ultrasonic VCO Forum: DIY Hardware and Software
piedwagtail Replies: 144 Views: 182625	I did it with 3 pcbs :mother/daughter/slider- used 4022 for 8 faders and 4040 for mega division. Jumpers rather than rotary. As there's a lot of 4070 real estate sitting around looking for Chinese ...
Topic: Switching power supplies
piedwagtail Replies: 47 Views: 29328	Posted: Sun Jan 20, 2019 5:03 am Subject: Switching power supplies Forum: DIY Hardware and Software
piedwagtail Replies: 47 Views: 29328	I use those voltmeters on each rail; on lights with an additional safety feature. If there's a fault, accuracy is not the issue, immediacy is. For Grumble's application I like these https://cpc.f ...
Topic: Switching power supplies
piedwagtail Replies: 47 Views: 29328	Posted: Sat Jan 19, 2019 2:50 pm Subject: Switching power supplies Forum: DIY Hardware and Software
piedwagtail Replies: 47 Views: 29328	More inclined to covered terminals Here's the icing for the cake https://www.aliexpress.com/item/Mini-Digital-Voltmeter-Voltage-Tester-Meter-0-28-Inch-2-5V-30V-LED-Screen-Electronic-Parts/328548 ...
Topic: Switching power supplies
piedwagtail Replies: 47 Views: 29328	Posted: Sat Jan 19, 2019 7:59 am Subject: Switching power supplies Forum: DIY Hardware and Software
piedwagtail Replies: 47 Views: 29328	thick wire Rod is better or the chassis itself. Why do you need such a big drop? Cost. Big current 24V SMPS are cheap as are standard non-LDO regulators. High frequency noise can be an issue w ...
Topic: Switching power supplies
piedwagtail Replies: 47 Views: 29328	Posted: Sat Jan 19, 2019 4:53 am Subject: Switching power supplies Forum: DIY Hardware and Software
piedwagtail Replies: 47 Views: 29328	The most important element in a modular is the ground, everything is referenced to that. Secondly stiff power rails. Think that the power supply has impedances and rocks like an ac signal if you're n ...
Topic: Need CMOS patcher with a lot of I/O. Ideas?
piedwagtail Replies: 40 Views: 33999	Posted: Wed Dec 26, 2018 6:59 am Subject: Need CMOS patcher with a lot of I/O. Ideas? Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 40 Views: 33999	That's a nice little Christmas gift Mr.Grumble! Do you use Circuitmaker? Don't like the look of this especially when DJ is making the claims https://www.eevblog.com/forum/altium/busted-altium ...
Topic: Need CMOS patcher with a lot of I/O. Ideas?
piedwagtail Replies: 40 Views: 33999	Posted: Fri Dec 21, 2018 1:26 pm Subject: Need CMOS patcher with a lot of I/O. Ideas? Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 40 Views: 33999	Could be done with a cheap chinese CPLD development board; my adaption of Richarius's 4015 matrix used as such. http://electro-music.com/forum/topic-69221 the last post is the actual programmi ...
Topic: Digital Pot triangle wave generator
piedwagtail Replies: 9 Views: 8512	Posted: Mon Nov 26, 2018 11:15 am Subject: Digital Pot triangle wave generator Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 9 Views: 8512	oh interesting, I didn't realize it has the counter built in until I checked the datasheet Yes, Mike seems to have brought to our attention to a very interesting device. I look forward to seeing wh ...
Topic: Digital Pot triangle wave generator
piedwagtail Replies: 9 Views: 8512	Posted: Mon Nov 26, 2018 5:01 am Subject: Digital Pot triangle wave generator Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 9 Views: 8512	Well, stick various pulses into clk and direction, in any relationship. Then use another pulse to sample and hold the output of W. Use A and B to figure range. Lunetta to pitch CV. I'm pointing to ...
Topic: Digital Pot triangle wave generator
piedwagtail Replies: 9 Views: 8512	Posted: Mon Nov 26, 2018 3:07 am Subject: Digital Pot triangle wave generator Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 9 Views: 8512	off the top of my head(as usual) This looks like part of an interesting pitch quantizer with a paralleled gating system to cut out increments. R
Topic: Building a squencer with clocked logic and ram?
piedwagtail Replies: 7 Views: 7967	Posted: Fri Sep 14, 2018 9:02 am Subject: Building a squencer with clocked logic and ram? Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
piedwagtail Replies: 7 Views: 7967	http://electro-music.com/forum/phpbb-files/eti_sequencer_759.pdf File already here There's at least three magazine projects, the Oberheim and SCI products... Could do the link in a CPLD. R
Topic: Latest Gen Oscilloscopes WITHOUT Trial Software
piedwagtail Replies: 3 Views: 2542	Posted: Sat Aug 18, 2018 3:15 am Subject: Latest Gen Oscilloscopes WITHOUT Trial Software Forum: DIY Hardware and Software
piedwagtail Replies: 3 Views: 2542	Doesn't someone in the market for the latest generation 'scope - buy the best Tek/Keysight/Rohde/LeCroy etc they can get/justify and will then offset the purchase against tax through their business? ...