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You can find many very circuit ideas at ePanorama.net circuits page.
In addition to this links to interesting electronics design related articles worth to check out can be posted to the comments section.
1,916 Comments
Tomi Engdahl says:
https://en.wikipedia.org/wiki/Common_base
https://www.quora.com/Why-the-common-base-amplifier-is-not-commonly-used-as-an-audio-amplifier
Tomi Engdahl says:
https://www.electronics-tutorials.ws/power/unijunction-transistor.html
Tomi Engdahl says:
https://www.edn.com/a-negative-current-source-with-pwm-input-and-lm337-output/#google_vignette
Tomi Engdahl says:
https://www.ic-components.com/blog/comprehensive-analysis-and-applications-of-the-7805-voltage-regulator-ic.jsp
Tomi Engdahl says:
https://en.wikipedia.org/wiki/TL431
Tomi Engdahl says:
https://www.edn.com/a-high-performance-current-source/#google_vignette
Tomi Engdahl says:
https://www.edn.com/pwm-programmed-lm317-constant-current-source/#comment-33041
Tomi Engdahl says:
https://www.newtoncbraga.com.br/banco-de-circuitos/22582-teste-de-cristais-cir3594.html?fbclid=IwY2xjawJeN-9leHRuA2FlbQIxMQABHuLF_B-zV7qIP6pGbcrfXG9tdnFKHCWnXE5kY1AZbMi9Po2S3j4Pw85koOqr_aem_uokOMsH1p1yWn1SHvanwpw
Tomi Engdahl says:
WIMA in Mannheim has discontinued the production of MKS capacitors!
( https://www.diyaudio.com/community/threads/wima-mks-and-more-caps-discontinued-eol.425402/ )
Tomi Engdahl says:
https://www.edn.com/another-simple-flip-on-flop-off-circuit/#google_vignette
Tomi Engdahl says:
https://www.edn.com/did-you-put-x-and-y-capacitors-on-your-ac-input/#google_vignette
Tomi Engdahl says:
https://www.planetanalog.com/a-short-primer-on-x-and-y-capacitors-in-ac-power-supply/
Tomi Engdahl says:
https://www.edn.com/lm4041-voltage-regulator-impersonates-precision-current-source/
Tomi Engdahl says:
https://hackaday.com/2025/04/21/biasing-transistors-with-current-sources/