The source impedance from your instrument/amplifier signal, coupled with the capacitance
of the cable, creates a low pass filter.
random things I made and things I learnt making them
Month: June 2018
Not another MC34063 switch mode power supply….?!
This design uses the “classic” MC34063 switching regulator IC to invert the input voltage rail to a negative voltage, simultaneously stepping up/down the output depending on the position of the rotary dip switch. The resistors in this design are set for -3.3v, -5V, -9V and -15V.
AC Theory Cheatsheet
Inductance is the relationship between the current and the magnetic field generated in a coil. Each is proportional to the delta of the other. [latex] {\large \frac{L = ( d^2 n^2)}{l + 0.45d} } [/latex] [latex]d2[/latex] is diameter of coil in meters [latex]n[/latex] is number of coil turns [latex]I[/latex] is length of coil in meters…