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rgb disco led
curavon01
209 views
A 5mm clear lens LED pre-wired for 12V which does a little repeating alternating sequence between the red, green and blue chips in the package. It is running from the PP3 ...
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rb_alt_led.mp4
curavon01
175 views
A 5mm 12V pre-wired flashing LED which alternates between red and blue colours. The resistor is fitted in the wiring. Here it is working from the PP3 9V battery shown.
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rotating_air_ioniser.mp4
curavon01
153 views
A demonstration of using a high voltage generator to drive a rotating emitter using negative air ion propulsion. The black box contains a Cockroft diode-capacitor ladder d...
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ring_modulator_first_try.mp4
curavon01
11 views
An authentic "diode and transformers" ring modulator circuit used to recreate the Dalek voices.
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The Useful Components Solderless Radio Kit
curavon01
590 views
A demo of the completed Useful Components Six Transistor TRF Radio Kit.
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emi_autofix_100_rdf.mp4
curavon01
97 views
Operating an EMI Autofix 100 on LW be
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Fresnel Lens and Sunshine Firelighting
curavon01
1,555 views
Setting Fire To Paper Using a Plastic Fresnel Lens and The Sunshine
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neon_bargraph_action_in-9.mp4
curavon01
553 views
An IN-9 neon bargraph indicator driven from a D.C. variable voltage through a 10k resistor. 10mA FSD.
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IN-12A Nixie Tube Demo
curavon01
704 views
IN-12A Nixie Tube Demo Count (Russian version of IN-12A)
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Heathkit AFM-1 Valve Tuner with Magic Eye
curavon01
645 views
Tuning across the band with a Heathkit AFM-1 Valve Tuner
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