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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Data sheets also often have sample schematics that can help get you started using a new chip.

Tom Bug’s BugBrand electronics page. Check each oscillator out one at a time, by listening to each output separately.

In addition to changing them manually, 4006 can also use one oscillator to control another oscillator. 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.

Handmade Electronic Music Routledge, ; chapter Or wire in a pot variable resistor to control the pitch.

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After experimenting and finalizing your design, you can transfer it to one of our Oscillator boards to make it more gig-worthy. You can get some pretty complex sounds with just a few basic building blocks, repeated a few times.


You should be able to hear the first oscillator switching the tone of the second oscillator back and forth between low to high. Replace the resistor with a photocell.

Ov course, you might have something different by now…. Try using variable resistors and start monkeying with the rate of the first oscillator, then the frequency of the second… then both.

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SO those are some basics: This tutorial shows how to build oscillators on a solderless breadboard. Once we start stringing circuits together, one circuit controlling another circuit… oh, boy. You can also change the 41006 value… swap in some different ones and see what happens. So we have oscillators, and we can 41006 their frequency by changing the values of either the resistor or capacitors.

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.

CMOS – CMOS – Six inverting Schmitt trigger

Start with what you had for the last circuit, then:. Or, hold the two resistor leads in your fingers and squeeze to change your skin resistance.


All 3 oscillators signals are now mixed together, out to the amp. We can do the same thing here. Oscillators produce AC signals, which we can amplify and hear as tones. BTW, most chips do different things and have different pin-outs. Oscillators can also control other oscillators, making more complex tones. The 3 k resistors on the right are the mixer resistors.

So you can get 6 oscillators out of one chip. We want to mix all three oscillators together.


Get all 3 oscillators happy before continuing. 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. 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 easiest.