PCB estilo Manhattan (Oscilador Colpitts)
Assembly of a Colpitts oscillator, using a ceramic resonator, made on a Manhattan-style PCB. Oscillator at a frequency of 455KHZ (BFO)
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#122: Electronic Circuit Construction Techniques: review of some prototype circuit building methods
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Simple 455 kHz BFO for SSB and CW Reception
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Mr. Orestes from Votuporanga-SP's Cobra 148ex
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Manhattan Prototyping - Level shifter Shootout
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Determining the resonant frequency of a ceramic resonator
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From Raw Crystal to Crystal Oscillator - Crystals go to War in 1943
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EEVblog 1752 - Texas Instruments SCREWED UP the NE5532!
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#123: Build a crystal oscillator from schematic thru prototype construction and testing - DIY
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Build 455KHz Alignment Signal Generator
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Building Pierce Gate Oscillator for 455kHz IF Alignment
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Simple External BFO for SSB/CW reception on your SW radio 簡易外付けBFO
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#129: How to cut circuit board PCB material - a couple of favorite methods I use...
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America Had No Radio Crystals in 1941 — So Engineers Cut 30 Million From Brazilian Quartz
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Making a sharp 455 KC IF filter with 4 cheap single 455 KC ceramic filters schematic & demo (pt. 1)
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Mais dicas de montagem do BFO TenTec 1050
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Reflex radio receiver - AM - 550 - 1600 KHZ - Homemade.
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We power up a giant Thyratron tube
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MOSFET vs Transistor vs Relay: Most People Get This Wrong
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A Small General Purpose AF Power Amplifier (LM386 Replacement)
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