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Coupling & Bypass Capacitors
https://sound-au.com/articles/coupling-caps.htm#:~:text=The%20voltage%20across%20the%20cap%20at%20any%20low,1%2F2%20to%201%2F3%20of%20the%20minimum%20wanted%20frequency.
Coupling & Bypass Capacitors
https://sound-au.com/articles/coupling-caps.htm
The value is usually not especially critical, and there are a few general guidelines that can be applied in the vast majority of cases. There is only one formula that's really needed - at least for coupling capacitors ... C = 1 / ( 2π × f × R ) or ... f = 1 / ( 2π × C × R )
Coupling Capacitor Calculator by V-Cap
https://www.v-cap.com/coupling-capacitor-calculator.php
For the Human beings with audio systems manufactured on Earth, that would be 1/10th of 20 Hz, or 2 Hz. If you enter the number "2" into the -3db frequency field, the capacitor calculator will automatically calculate your optimal value so you will have great sound from 20 Hz and higher. Compare the results from the two calculators:
What coupling capacitor values are common | diyAudio
https://www.diyaudio.com/community/threads/what-coupling-capacitor-values-are-common.190750/
That short list is actually somewhat what I already had in mind, I was thinking the 0.01-0.33 uF range and the 0.1 to 0.47 uF range. Was mostly curious about the 1 to 6 uF range as my current preamp circuit I use has 3.3 uf cap coupling it to the driver tube, I assumed the large value was so that one could adjust cutoff etc based on the dual triodes and the interstage …
What is a Coupling Capacitor? - Learning about Electronics
http://www.learningaboutelectronics.com/Articles/What-is-a-coupling-capacitor
The value of the coupling capacitor depends on the frequency of the AC signal being passed through. Capacitors are reactive devices, meaning they offer different impedance (or resistance) to signals of different frequencies.
Capacitor Selection for Coupling and Decoupling …
https://passive-components.eu/capacitor-selection-for-coupling-and-decoupling-applications/
Types of capacitors for coupling applications When selecting a capacitor for coupling/DC blocking applications, the key parameters to consider include impedance, equivalent series resistance, and series resonant frequency. The capacitance value primarily depends on the frequency range of the application and the load/source impedance.
Increasing Coupling Capacitor Values in Tube …
https://audiokarma.org/forums/index.php?threads/increasing-coupling-capacitor-values-in-tube-amp-preamp-rebuilds.744091/
I noted that in the Tronola articles, the coupling cap in an Eico phono section was changed from a 0.05 ceramic to a 0.1 µf film cap. This made sense and improved the LF response. So sometimes it is beneficial, but as Binary Mike and others advise, it's best to understand the theory AND perform quantitative tests before drawing conclusions or making …
Coupling Capacitor Calculator
https://www.ampbooks.com/mobile/amplifier-calculators/coupling-capacitor/
The coupling capacitor CG blocks the high DC voltage at the plate of the driving tube while allowing audio signals to pass. Unless bass attenuation is desired, the capacitor needs to be large enough to induce very little signal attenuation at bass frequencies. (82Hz is the lowest note on a guitar with standard tuning.) It shouldn't be too large, however, or unwanted effects like …
ecp audio diy: Some Notes on Coupling Capacitors
http://diy.ecpaudio.com/p/some-notes-on-coupling-capacitors.html
the value of coupling capacitors | All About Circuits
https://forum.allaboutcircuits.com/threads/the-value-of-coupling-capacitors.149324/
C=1/ (w* (R1+R2)) where. R1 is the equivalent input resistance (which may be the source resistance for example), R2 is the output 'load' resistance, C is the coupling cap value, w is the angular frequency 2*pi*f with f the frequency in …
How to choose coupling capacitors in an audio circuit ...
https://eevblog.com/forum/projects/how-to-choose-coupling-capacitors-in-an-audio-circuit/
A shotgun mic is not hifi so the capacitor does not need to pass low audio frequencies. The value of a coupling capacitor is calculated with the lowest frequency you want that will have a loss of 3dB and the load resistance. A 1uF capacitor will have a low frequency of 100Hz when it feeds a load of 1.6k ohms, 10Hz into 16k ohms.
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