PIRA 5L30.00 FILTERS AND RECTIFIERS

DCS #DEMONSTRATIONREFERENCEABSTRACT
5L30.00Filters and Rectifiers
5L30.10bridge rectifierPIRA 500
5L30.10bridge rectifier5L30.10Plug in diodes on a Wheatstone bridge circuit board are used to demonstrate unrectified, half wave, and full wave rectification. Show on an oscilloscope.
5L30.10bridge rectifierEo-10Half and full wave rectification with a plug in Wheatstone bridge board.
5L30.10wheatstone bridgeEo-8A Wheatstone bridge board with plug in elements.
5L30.10rectifier circuitDisc 18-11Diodes in a Wheatstone bridge configuration followed by two low pass filters.
5L30.11bridge rectifier33-2.4A circuit allows switching between unrectified, half, and full wave rectified configurations. A magnet bob pendulum and pickup coil provide a slow ac signal.
5L30.12diode rectifierA-80Use neon lamps to indicate rectification with a diode rectifier tube.
5L30.14thermionic rectifierA-79Kenotron type thermionic rectifier using a switch to change polarity of dc voltage.
5L30.16very low frequency rectificationA-25Rectification can be demonstrated with a rotary potential divider and a vacuum tube in one of the standard circuits. Other stuff too.
5L30.20blinky whirligigPIRA 500
5L30.20blinky whirligig5L30.20A small flashing light on the end of a string is whirled around.
5L30.20blinky whirlygigTPT 22(9),554An improvement on TPT,22(7),448, "AC made visible".
5L30.20blinky whirligigMb-9Blinking neon bulb on a cord is swung around in uniform circular motion.
5L30.20blinky whirligig7-2.4Swing a light bulb around and take a picture of it with a fan strobed Polaroid
5L30.21glow lamp swingerAJP 43(1),112Swing a GE A9A or Chicago Miniature Ne-23 neon glow lamp in a 3 foot radius circle. Use as a persistence of vision demo by holding it still.
5L30.21whirling glow lampE-13aA two watt neon glow lamp is mounted on a hand rotator.
5L30.25AC and DC with starch and iodine30-1.2Drawing an electrode across a starch/iodine solution gives a solid line with dc and a dashed line with ac.
5L30.30LC low pass filter33-2.5Ammeters measure the current before and after a LC filter while an audio amplifier detects ac before and after as the frequency is varied.
5L30.31current in an LC circuit33-3.3Lamps are in series in each branch of an LC circuit to show current distribution as inductance is changed.
5L30.34Fourier zeros LC circuitAJP 31(2),134No energy is deposited in a resonant high Q circuit at f=n/pulse width. Circuit given.
5L30.35mechanical analog of LC filter33-3.1A string and pulley arrangement provides an analog of a parallel LC filter. Reference: AJP 14(5),318.
5L30.36RLC filter33-2.6A RLC parallel filter with each component individually switched is used to show the effect of each component on audio frequencies.
5L30.50resonant cavity propertiesAJP 39(3),337Identical ultrasonic transducers are bonded to opposite parallel faces of a solid medium. One is pulsed with a rf voltage at the transducer resonant frequency and the other is the receiver. The frequency adjusted to a Fabry-Perot resonance.
5L30.70many circuitsTPT 3(5),199Nine simple circuits using diodes and transistors covering from rectifiers to a linear sweep generator.

ReferenceDescription
M-1Sutton
Ma-1Freier & Anderson
M-1dHilton
8-2.8Meiners
1A12.01University of Minnesota Handbook
AJP 52(1),85American Journal of Physics
TPT 15(5),300The Physics Teacher
Disc 01-01The Video Encyclopedia of Physics Demonstrations

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