Author Archives: cjr486

By: Charlie Reynolds 1. Here are a few projects from the Digital Electronics Hall of Fame.  Find 3 that are compelling to you and write a little bit about each. Ethan Bailey’s project: Really interesting project! Loved how he uses a microphone to trigger the different control circuits letting you play the glockenspiel with no malletsContinue reading “Analog Week 13 Assignment”

By: Charlie Reynolds R1 value = 200k ohms https://www.multisim.com/content/RvNvTAgawFRdQr2hfDzjjf/555-monostable-multivibrator/open/ I found this circuit that utilizes a 555 timer operating in astable multivibrator mode. The astable multivibrator mode creates “free running waveforms which can be adjusted”. Using resistors in series, the different buttons can use different amounts of cumulative resistance to create 5 different tones.

By: Charlie Reynolds 1a) What do you like and dislike about them? What types of pedals do you find interesting, and that you wish you could learn more about? Try to pick out analog effects and not digital ones. I am not too familiar with boutique pedals, but have definitely seen some of the more popular brands suchContinue reading “Analog Week 11 Lab”

https://www.multisim.com/content/d5ceJE5wcvgtPpPL5cwWMM/week-10-lab-charlie-reynolds/open/

By: Charlie Reynolds 1) For this circuit… …if the sine wave you’re putting into the diode clipping circuit is loud enough to distort, the output signal will look like: a) 2) For this circuit… …if the sine wave you’re putting into the diode clipping circuit is loud enough to distort, the output signal look like: b) 3) AssumeContinue reading “ANALOG LAB WEEK 9 ASSIGNMENT”

Charlie Reynolds 1) With the oscillator we’re studying the comparator outputs a square wave and the integrator outputs a triangle wave. 2) With an integrator, if Vin is positive the output voltage ramps down (up/down). If Vin is negative the output voltage ramps up (up/down). 3) With a comparator, if the op amp’s + input is connected toContinue reading “Analog Lab Week 8 (remote assignment)”

Charlie Reynolds Capacitor Notes: Camera flash can use capacitors to charge up and discharge when voltage is needed 10 Ω –> 20000Hz 10000 Ω –> 20 Hz 2a) Corner Frequency = 1/(2*pi*R*C) 1/(2*3.14*10Ω * 1μF) = 15,923.6 ~ 20000 Hz 1/(2*3.14*10000 Ω * 1μF) = 15.92 Hz ~ 20 Hz 2b) Low Pass Filter: 2b)Continue reading “Analog Lab 6”

Charlie Reynolds DC Blocking: It is important to add a resistor and capacitor on the inputs and outputs of your circuit because it will block DC current from flowing through the circuit. Audio is AC current, so letting DC flow could potentially harm your input and output sources. Vout = Vin * (1 + R2/R1) —> 0.2VContinue reading “Analog Lab 5”

Charlie Reynolds Every oscilloscope come with essentially the same basic mechanics. Each oscilloscope has similar sections. Display: First, there is is the Display where after turning the oscilloscope on, the display graphs your signal’s amplitude over time. Vertical: Then, there is the Vertical section. This section controls how the voltage is being displayed on theContinue reading “Analog Lab 4”

Charlie Reynolds Part 1) Soldering Part 1a) Soldering Prep: Turn the soldering iron on and set the knob to its sweet spot between 4 and 5 (for the classroom irons). Once the tip is hot remove any lingering solder residue onto the damp sponge. Then, the iron will be ready to use on your components.Continue reading “Analog Lab 3”