#tl072 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #tl072, aggregated by home.social.
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I found the culprit... It's the #TL072 that goes into phase reversal because the gate and trigger signals are -12V when low.
After swapping it with a #LM358, the output signals for trigger and gate, including the LEDs work as intended.
This took a lot of time to find out, but I've gained some knowledge now.
#PhaseReversal #OpAmps #BugFixing -
Today's #soldering project done: a #mixer with three inputs using a #TL072 #opamp. I have a layout planned for a slightly bigger #perfboard with four to six inputs.
#diysynth -
Finally got my Kwelatones TL072 Audio Amp boxed and ready for some tunes! 🥳
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Finally got my Kwelatones TL072 Audio Amp boxed and ready for some tunes! 🥳
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Finally got my Kwelatones TL072 Audio Amp boxed and ready for some tunes! 🥳
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Finally got my Kwelatones TL072 Audio Amp boxed and ready for some tunes! 🥳
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Finally got my Kwelatones TL072 Audio Amp boxed and ready for some tunes! 🥳
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It works!
Audio test was successful, quiet audio in -> loud audio out. Whoop, whoop!
Left/right balance testing confirmed that I had not got that reversed. Only mistake seems to be with the volume pot, as I have to turn it anti-clockwise to increase the volume. I think I will have to fix that 🤔
Other observations are a bit of hiss, and some mains hum from the laptop.
Next, a box to live in and then I can connect it to my RC2040 🥳
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It works!
Audio test was successful, quiet audio in -> loud audio out. Whoop, whoop!
Left/right balance testing confirmed that I had not got that reversed. Only mistake seems to be with the volume pot, as I have to turn it anti-clockwise to increase the volume. I think I will have to fix that 🤔
Other observations are a bit of hiss, and some mains hum from the laptop.
Next, a box to live in and then I can connect it to my RC2040 🥳
-
It works!
Audio test was successful, quiet audio in -> loud audio out. Whoop, whoop!
Left/right balance testing confirmed that I had not got that reversed. Only mistake seems to be with the volume pot, as I have to turn it anti-clockwise to increase the volume. I think I will have to fix that 🤔
Other observations are a bit of hiss, and some mains hum from the laptop.
Next, a box to live in and then I can connect it to my RC2040 🥳
-
It works!
Audio test was successful, quiet audio in -> loud audio out. Whoop, whoop!
Left/right balance testing confirmed that I had not got that reversed. Only mistake seems to be with the volume pot, as I have to turn it anti-clockwise to increase the volume. I think I will have to fix that 🤔
Other observations are a bit of hiss, and some mains hum from the laptop.
Next, a box to live in and then I can connect it to my RC2040 🥳
-
It works!
Audio test was successful, quiet audio in -> loud audio out. Whoop, whoop!
Left/right balance testing confirmed that I had not got that reversed. Only mistake seems to be with the volume pot, as I have to turn it anti-clockwise to increase the volume. I think I will have to fix that 🤔
Other observations are a bit of hiss, and some mains hum from the laptop.
Next, a box to live in and then I can connect it to my RC2040 🥳
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The kit soldering and build is complete... Next I need to test it with some audio and then house it in the small tin, or maybe something a little bigger 🤔
Initial testing so far has just been connecting the 2x 9v batteries and switching it on. The power led illuminated, as hoped for!
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The kit soldering and build is complete... Next I need to test it with some audio and then house it in the small tin, or maybe something a little bigger 🤔
Initial testing so far has just been connecting the 2x 9v batteries and switching it on. The power led illuminated, as hoped for!
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The kit soldering and build is complete... Next I need to test it with some audio and then house it in the small tin, or maybe something a little bigger 🤔
Initial testing so far has just been connecting the 2x 9v batteries and switching it on. The power led illuminated, as hoped for!
-
The kit soldering and build is complete... Next I need to test it with some audio and then house it in the small tin, or maybe something a little bigger 🤔
Initial testing so far has just been connecting the 2x 9v batteries and switching it on. The power led illuminated, as hoped for!
-
The kit soldering and build is complete... Next I need to test it with some audio and then house it in the small tin, or maybe something a little bigger 🤔
Initial testing so far has just been connecting the 2x 9v batteries and switching it on. The power led illuminated, as hoped for!
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I have now soldered all the PCB components. Off board potentiometers, audio sockets and power connectors next.
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I have now soldered all the PCB components. Off board potentiometers, audio sockets and power connectors next.
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I have now soldered all the PCB components. Off board potentiometers, audio sockets and power connectors next.
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I have now soldered all the PCB components. Off board potentiometers, audio sockets and power connectors next.
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I have now soldered all the PCB components. Off board potentiometers, audio sockets and power connectors next.
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Op-Amp Contest: Virtual Ball-in-a-Box Responds to Your Motions - With the incredible variety of projects submitted to our Op-Amp Contest, you’d alm... - https://hackaday.com/2023/06/07/op-amp-contest-virtual-ball-in-a-box-responds-to-your-motions/ #analogcomputer #accelerometer #classichacks #miniaturecrt #ballinbox #contests #opamps #tl072
