Comment on How do I select a transformer?
acannan@programming.dev 2 months agoSorry for the ambiguity, I intend to use this for audio applications (specifically I want to shift 20 kHz to 100 kHz down to human hearing range, tunable by a pot.
Given the price and low supply I think I’ll go ahead and try to wind my own transformers–thanks for the video, seems perfect!
nilclass@discuss.tchncs.de 2 months ago
Great, good luck with that :)
Another thing that comes to mind: for audio purposes another technique used in ring modulators for audio effects is to use a mosfet switch to mix the signal with a square wave. This has more byproducts than mixing with a pure sine, but is a lot easier to do. Since you are downconcerting, it should not matter at all if you use a square wave, since the byproducts will all be (higher-order) harmonics of the local oscillator, which you’ll filter out anyway.