| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 5L30.00 | Filters and Rectifiers | | |
| 5L30.10 | bridge rectifier | PIRA 500 | |
| 5L30.10 | bridge rectifier | 5L30.10 | Plug in
diodes on a Wheatstone bridge circuit board are used to demonstrate unrectified,
half wave, and full wave rectification. Show on an oscilloscope. |
| 5L30.10 | bridge rectifier | Eo-10 | Half and full wave rectification with a plug in Wheatstone bridge board. |
| 5L30.10 | wheatstone bridge | Eo-8 | A Wheatstone bridge board with plug in elements. |
| 5L30.10 | rectifier circuit | Disc 18-11 | Diodes in a Wheatstone bridge configuration followed by two low pass filters. |
| 5L30.11 | bridge rectifier | 33-2.4 | A circuit
allows switching between unrectified, half, and full wave rectified configurations.
A magnet bob pendulum and pickup coil provide a slow ac signal. |
| 5L30.12 | diode rectifier | A-80 | Use neon lamps to indicate rectification with a diode rectifier tube. |
| 5L30.14 | thermionic rectifier | A-79 | Kenotron type thermionic rectifier using a switch to change polarity of dc voltage. |
| 5L30.16 | very low frequency rectification | A-25 | Rectification
can be demonstrated with a rotary potential divider and a vacuum tube in
one of the standard circuits. Other stuff too. |
| 5L30.20 | blinky whirligig | PIRA 500 | |
| 5L30.20 | blinky whirligig | 5L30.20 | A small flashing light on the end of a string is whirled around. |
| 5L30.20 | blinky whirlygig | TPT 22(9),554 | An improvement on TPT,22(7),448, "AC made visible". |
| 5L30.20 | blinky whirligig | Mb-9 | Blinking neon bulb on a cord is swung around in uniform circular motion. |
| 5L30.20 | blinky whirligig | 7-2.4 | Swing a light bulb around and take a picture of it with a fan strobed Polaroid |
| 5L30.21 | glow lamp swinger | AJP 43(1),112 | Swing
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. |
| 5L30.21 | whirling glow lamp | E-13a | A two watt neon glow lamp is mounted on a hand rotator. |
| 5L30.25 | AC and DC with starch and iodine | 30-1.2 | Drawing an electrode across a starch/iodine solution gives a solid line with dc and a dashed line with ac. |
| 5L30.30 | LC low pass filter | 33-2.5 | Ammeters
measure the current before and after a LC filter while an audio amplifier
detects ac before and after as the frequency is varied. |
| 5L30.31 | current in an LC circuit | 33-3.3 | Lamps are in series in each branch of an LC circuit to show current distribution as inductance is changed. |
| 5L30.34 | Fourier zeros LC circuit | AJP 31(2),134 | No energy is deposited in a resonant high Q circuit at f=n/pulse width. Circuit given. |
| 5L30.35 | mechanical analog of LC filter | 33-3.1 | A string and pulley arrangement provides an analog of a parallel LC filter. Reference: AJP 14(5),318. |
| 5L30.36 | RLC filter | 33-2.6 | A RLC parallel
filter with each component individually switched is used to show the effect
of each component on audio frequencies. |
| 5L30.50 | resonant cavity properties | AJP 39(3),337 | Identical
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. |
| 5L30.70 | many circuits | TPT 3(5),199 | Nine simple circuits using diodes and transistors covering from rectifiers to a linear sweep generator. |