Integrated Circuit. CMOS, Hex Schmitt Trigger. Description: The NTEB ( Lead DIP) and NTEBT (SOIC) consist of six Schmitt Trigger circuits. HCFBEY from STMICROELECTRONICS >> Specification: IC, CMOS, , DIP14, 15V. CMOS Hex Schmitt Trigger. 20 Volt Rating, Model CDBE. Features. Hysteresis Voltage: V at Vdd = 5V V at Vdd = 10V V at Vdd = 15V.
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So you can get 6 oscillators out of one chip. So we have oscillators, and we can change their frequency by changing the values of either the resistor or capacitors. Or, hold the two resistor leads in your fingers and squeeze to change your skin resistance.
4006 can get some pretty complex sounds with just a few basic building blocks, repeated a few times.
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SO those are some basics: Replace the resistor with a photocell. The 3 k resistors on the right are the mixer 40160. We want to mix all three oscillators together. A sweet setup would be 3 pairs of FM oscillators with all three outputs mixed together… speed controls on the slow oscillators, photocells on the fast ones, individual volume controls… you get the idea. In addition to changing them manually, we can also 401106 one oscillator to control another oscillator.
Try using variable resistors and start monkeying with the rate of the first oscillator, then the frequency of the second… then both. On chips like this with multiple elements, all the inverters on the chip are the same, so you can pick whichever one makes the layout cmis. This tutorial shows how to build oscillators on a solderless breadboard. You should be able to hear the first oscillator switching the tone of the second oscillator back and forth between low to high.
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You can also change the capacitor value… swap in some different ones and see what happens. Start with what you had for the last circuit, then:.
Handmade Electronic Music Routledge, ; chapter Once we start stringing circuits together, one circuit controlling another circuit… oh, boy. After experimenting and finalizing your design, you can transfer it to one of our Oscillator boards to make it more gig-worthy.
CMOS – CMOS – Six inverting Schmitt trigger
Get all 3 oscillators happy before continuing. BTW, most chips do different things and have different pin-outs. Tom Bug’s BugBrand electronics page. Check each oscillator out one at cmoz time, by listening to each output separately.
Ov course, you might have something different by now…. Oscillators can also control other oscillators, making more complex tones. All 3 oscillators signals are now mixed together, out to the amp. Data sheets also often have sample schematics that can help get you started using a new chip.
We can do the same thing 4010.
This is one of those schematics that omits the power connections, and just shows the basic circuit building blocks although it does show the pin numbers.
Oscillators produce AC signals, which we can amplify and hear as tones. We used a different integrated circuit the chip last week to build our amps; it had only one circuitry block in it, a single analog amplifier the right-pointing triangle on the schematic. Or wire in a pot variable resistor to control the pitch.