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Using Varactor Diodes for FM Signal Generation

AAC - Sun, 08/31/2025 - 20:00
Learn how a varactor diode's variable capacitance, together with an LC tank circuit, can drive a voltage-controlled oscillator (VCO) to create FM waveforms.

Weekly discussion, complaint, and rant thread

Reddit:Electronics - Sat, 08/30/2025 - 18:00

Open to anything, including discussions, complaints, and rants.

Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.

Reddit-wide rules do apply.

To see the newest posts, sort the comments by "new" (instead of "best" or "top").

submitted by /u/AutoModerator
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New to this and was trying parts out, the gf calls it a weapon of mass irritation.

Reddit:Electronics - Sat, 08/30/2025 - 10:03
New to this and was trying parts out, the gf calls it a weapon of mass irritation.

Iv never actually messed with the electronics, iv only ever handled the programming.

submitted by /u/Bobert_DaZukin
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Toshiba Intros 1800 V Photorelay for High-Voltage EV Batteries

AAC - Fri, 08/29/2025 - 23:00
The photorelay aims at 800 V battery management systems in electric vehicles and energy storage applications.

When you need DIP but only have SMT

Reddit:Electronics - Fri, 08/29/2025 - 22:12
When you need DIP but only have SMT

Needed to test a circuit on a breadboard that needs a RRIO Op Amp. Didn't have any DIP ones on hand, so "dead bugged" a surface mount MCP6001 to an 8-pin IC socket.

submitted by /u/PleasantCandidate785
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Self made amp circuit

Reddit:Electronics - Fri, 08/29/2025 - 19:11
Self made amp circuit

Amp Output.. If I succeed in making it, I'll upload it to Reddit and YouTube.

submitted by /u/Time_Double_1213
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