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| Page 1 of 53 [1306 Posts] | Goto page: 1, 2, 3, ..., 51, 52, 53 Next |
| Author | Message |
|---|---|
 Topic: Several IC circuits from one battery. |
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| Grumble Replies: 1 Views: 83 |
Posted: Tue May 06, 2025 2:50 am Subject:
Several IC circuits from one battery.
Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta |
| Best practice is to connect a capacitor say about 100nF close to the supply pins of each ic and a large one (about 100uF) where the power supply enters the board.
You might want to connect a small fi ... |
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| Topic: Build Pictures 2025 |
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| Grumble Replies: 24 Views: 3826 |
Posted: Mon May 05, 2025 6:52 am Subject:
Build Pictures 2025
Forum: DIY Hardware and Software |
| I think the inside is better looking as the outside đđđ»
Nice job! |
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| Topic: Op Amp to split sequencer voltage? |
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| Grumble Replies: 8 Views: 478 |
Posted: Sun Apr 20, 2025 11:55 am Subject:
Op Amp to split sequencer voltage?
Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta |
| If you go here:
https://www.falstad.com/circuit/circuitjs.html You can build circuits and test them out, so you can play with resistor values etc. That said: The attennuverter is a very smart circu ... |
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| Topic: Op Amp to split sequencer voltage? |
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| Grumble Replies: 8 Views: 478 |
Posted: Fri Apr 18, 2025 4:06 am Subject:
Op Amp to split sequencer voltage?
Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta |
| For the right three opamps I'd use three attennuverters so you can have a volume setting and invert the signal with the same potentiometer | |
| Topic: A very persistent and hard to identify grounding problem |
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| Grumble Replies: 1 Views: 265 |
Posted: Mon Apr 07, 2025 1:27 pm Subject:
A very persistent and hard to identify grounding problem
Forum: DIY Hardware and Software » The Repair Shop |
| I had a similar hum problem. I have to add that almost all my patchcords are made from a single wire.
The idea is that output impedances are low and voltage amplitudes are high. So what I did was co ... |
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| Topic: Build Pictures 2025 |
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| Grumble Replies: 24 Views: 3826 |
Posted: Thu Mar 06, 2025 11:25 am Subject:
Build Pictures 2025
Forum: DIY Hardware and Software |
| Yes, it does have send returns for extern fx, some from the eurorack, or a fx case I have.
My studio doesnât need much space, the small euro case you can see on the picture already has 12 outputsâ ... |
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| Topic: Build Pictures 2025 |
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| Grumble Replies: 24 Views: 3826 |
Posted: Tue Mar 04, 2025 12:08 am Subject:
Build Pictures 2025
Forum: DIY Hardware and Software |
| Not realy a build picture, but a repair picture this time.
This 24 channel mixing table was donated to me since it was defective. But after a morning working on it I found 2 false soldering points a ... |
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| Topic: 2024 Build Pictures |
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| Grumble Replies: 22 Views: 3648 |
Posted: Thu Sep 26, 2024 2:43 pm Subject:
2024 Build Pictures
Forum: DIY Hardware and Software |
| My MODDER is an ESP32 based module to convert the input signal according to a chosen conversion.
I really like the functionality of your module. In fact, I may adapt your idea to my Arduino-based ... |
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| Topic: 2024 Build Pictures |
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| Grumble Replies: 22 Views: 3648 |
Posted: Sun Sep 08, 2024 2:12 pm Subject:
2024 Build Pictures
Forum: DIY Hardware and Software |
| sure, look at 1.40 | |
| Topic: 2024 Build Pictures |
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| Grumble Replies: 22 Views: 3648 |
Posted: Sat Sep 07, 2024 12:08 am Subject:
2024 Build Pictures
Forum: DIY Hardware and Software |
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My MODDER is an ESP32 based module to convert the input signal according to a chosen conversion.The input signal in this patch comes from the O&C module on the left (an Attack-Decay signal). ... |
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| Topic: Wanted: CD4062 |
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| Grumble Replies: 7 Views: 1620 |
Posted: Fri Jul 12, 2024 4:40 am Subject:
Wanted: CD4062
Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta |
| Srry, can't help you here | |
| Topic: June Solstice Concert |
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| Grumble Replies: 28 Views: 5592 |
Posted: Thu Jun 27, 2024 10:58 am Subject:
June Solstice Concert
Forum: electro-music.com » Streaming Radio Station |
| Unfortunately I wasnât able to attend to this last solstice event (I totally forgot it due to my vacation) but luckely there are downloads to listen.
Thanks! |
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| Topic: Panel design? |
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| Grumble Replies: 2 Views: 857 |
Posted: Mon Jun 17, 2024 8:15 am Subject:
Panel design?
Forum: DIY Hardware and Software |
| I print my panels with (mostly) two colors pla+
The characters are embossed so when the printer starts printing the characters, I pause the printer and change color. For the design I use Fusion 360 ... |
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| Topic: Wanted: CD4062 |
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| Grumble Replies: 7 Views: 1620 |
Posted: Fri Jun 07, 2024 10:05 pm Subject:
Wanted: CD4062
Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta |
| If you are patient, I can look at home in my collection.
Recently I got a lot of different icâs from a befriended engineer, but it will take at least till juli 2024 before I can check it out. The ... |
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| Topic: can I use my dotcom psu for euro? |
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| Grumble Replies: 3 Views: 628 |
Posted: Tue May 14, 2024 11:50 pm Subject:
can I use my dotcom psu for euro?
Forum: DIY Hardware and Software » The Repair Shop |
| Just set it to 12 volt and your set. | |
| Topic: Making money with YouTube - personal experience |
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| Grumble Replies: 8 Views: 26544 |
Posted: Fri Apr 26, 2024 11:23 pm Subject:
Making money with YouTube - personal experience
Forum: Reviews, Editorials and Commentary » Commentary and Editorials |
| There are also companies/people who copyright claim the music you post on YouTube.
You can fight this claim, but that will take some weeks. During these weeks you receive no money (if you normally d ... |
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| Topic: Paia EK-7 Digitizer (4 Bit ADC) |
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| Grumble Replies: 10 Views: 14646 |
Posted: Thu Dec 21, 2023 3:45 am Subject:
Paia EK-7 Digitizer (4 Bit ADC)
Forum: DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta |
| Why donât you use a TLC0820, that is an 8 bit flash ADC.
Sample time max. 2.5uSec, 5 volt supply. Use the 4 highest bits⊠|
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| Topic: Issues constructing Reverse Avalanche Oscillators. |
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| Grumble Replies: 6 Views: 3652 |
Posted: Thu Sep 28, 2023 11:09 pm Subject:
Issues constructing Reverse Avalanche Oscillators.
Forum: DIY Hardware and Software |
| First thing I noticed when glancing over the schematic is the 100k pot at the cv input.
This is far to large impedance since it is in series with the led(s) Why donât you use the spare opamp to bu ... |
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| Topic: audio to gate using Arduino? |
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| Grumble Replies: 3 Views: 1839 |
Posted: Wed Aug 30, 2023 2:39 pm Subject:
audio to gate using Arduino?
Forum: DIY Hardware and Software » Arduino |
| I wouldnât use an Arduino for this, my strategy would be to first use a full wave rectifier, followed by a low pass filter and send that into a comparator.
Or for a more sophisticated solution: ht ... |
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| Topic: The sound of 24 DX7's and one YMF704 |
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| Grumble Replies: 1 Views: 1804 |
Posted: Sat Aug 19, 2023 11:03 am Subject:
The sound of 24 DX7's and one YMF704
Subject description: the sounds, not the looks Forum: Online Music |
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This is a demo of 3 Minidexed DX7 and one module around an YMF704. Read all about the Minidexed DX7 at https://github.com/probonopd/MiniDexe... MiniDexed is a FM synthesizer closely modeled on t ... |
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| Topic: cd4046be vco quieter than ne556n vco on my breadboard |
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| Grumble Replies: 3 Views: 1690 |
Posted: Thu Jul 13, 2023 2:09 pm Subject:
cd4046be vco quieter than ne556n vco on my breadboard
Forum: electro-music.com » Help |
| 4046 output at 10 volt = 2mA
556 at 15 volt Sink 100 mA Typ, Source 10 mA Typ That will explain the difference in volume when using a low impedance loudspeaker. |
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| Topic: PT2399 issues going from breadboard to PCB |
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| Grumble Replies: 10 Views: 3852 |
Posted: Wed May 31, 2023 12:00 pm Subject:
PT2399 issues going from breadboard to PCB
Forum: DIY Hardware and Software |
| Problem is, I'm not at home and won't be for at least a month, so I'm doing this on my smartphone.
So I hope that another forum membet will chip in... |
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| Topic: PT2399 issues going from breadboard to PCB |
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| Grumble Replies: 10 Views: 3852 |
Posted: Wed May 31, 2023 10:05 am Subject:
PT2399 issues going from breadboard to PCB
Forum: DIY Hardware and Software |
| In the drawing named ATTEMPT 2 - BREADBOARD CIRCUIT PCB LAYOUT.png (top drawing) the potmeters are differently drawn as in the lower drawings.
The middle pin of the potmeters are the wiper of the pot ... |
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| Topic: PT2399 issues going from breadboard to PCB |
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| Grumble Replies: 10 Views: 3852 |
Posted: Wed May 31, 2023 7:12 am Subject:
PT2399 issues going from breadboard to PCB
Forum: DIY Hardware and Software |
| On both the schematic pictures the 5 volt coming from the regulator isnât going anywhere but to +pin of the 47uF capacitor. | |
| Topic: Analog step sequencer design |
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| Grumble Replies: 1 Views: 1328 |
Posted: Thu Apr 27, 2023 10:21 pm Subject:
Analog step sequencer design
Forum: DIY Hardware and Software » Developers' Corner |
| A schematic would be very helpful if not necessary in answering your question. | |
| Page 1 of 53 [1306 Posts] | Goto page: 1, 2, 3, ..., 51, 52, 53 Next |
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