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BAR AND GAUGE PSAW (1210 B )
For illustrating expansion by heating and contraction by cooling. Comprising a mild steel bar 110x10mm, on rod with wooden handle, overall length 280mm approx, with metal cast gauge, sliding fit over ends of bar with hole 10mm bore, in one arm.
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RING AND BALL, GRAVESANDE PSAW (1210 )
An apparatus for demonstrating thermal expansion, comprising of a captive brass ball secured to a mounted brass ring by a chain. Ring mounted rod with wooden handle. The ball passes through the ring when cold but will not pass through when heated, ball dia 25mm.
Same as above but ball dia. 19 mm
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1211 C STETHOSCOPE PSAWA highly sensitive stethoscope with rubber tubing.
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STROBOSCOPE PSAW (1211 B )
Simple model, hand driven to show the student stroboscope effects.
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RIPPLE TANK CONTROLLER PSAW (1211 A-C )
This unit provides two fully independent, continuously variable d.c. outputs of 0 to 5 V for the stroboscope motor and ripple tank motor. It also has a fixed a.c. output to operate a 12V 21W illuminant. Supplied with a detachable mains lead.
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RIPPLE TANK PSAW (1211 A )
For demonstration or small group work, it generates straight and circular wave forms. It comes complete with all the accessories required to perform investigations and experiments into reflection, refraction and interference effects. A low voltage power supply source is required for
illumination and the propagation of waves. The tank is formed from a tough plastic surround with a perspex base. The unit also includes a ‘Beach’ feature which eliminates any unwanted reflections.
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Rubber Hammer PSAW (1213 B )
For striking tuning forks.
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Wooden Hammer PSAW (1213 A )
For striking the tuning forks.
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Rubber Pad PSAW (1213 )
For striking the tuning fork.
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Rubber tube coil for 10 meter PSAW (1214) A. 6 MM
B. 8 MM
C. 10 MM
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Rubber tube pressure type coil for 10 meter PSAW (1215) A. 6 MM
B. 8 MM
C. 10 MM
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Resistance Box Plug Type Manganin Coil PSAW (1216 A)Specifications are same as described on 151, consisiting of 12 mm (approx. ½”) thick rectangular brass block and resistance coils and made from doubled silk covered manganin wire. Accuracy ± 0.05%
A. |
0.01-1 ohms
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B. |
0.01-10 ohms
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C. |
1-50 ohms
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D. |
1-100 ohms
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E. |
1-500 ohms
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F. |
1-1000 ohms
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G. |
1-5000 ohms
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H. |
1-10000 ohms |
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Resistance Box Plug Type Constantan Coil PSAW (1216)Precision quality consisiting of 12 mm (approx. ½”) thick rectangular brass block, non inductive, double covered eureka constantan wire is wound on bakelite spool, enclosed in a teak wood box. Accuracy ± 0.1%.
A. |
0.01-1 ohms
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B. |
0.01-10 ohms
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C. |
1-50 ohms
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D. |
1-100 ohms
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E. |
1-500 ohms
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F. |
1-1000 ohms
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G. |
1-5000 ohms
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H. |
1-10000 ohms |
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Resistance Box Dial Type PSAW (1217)
A.
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One dial |
B.
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Two dial |
C.
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Three dial |
D
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Four dial |
E. |
Five dial |
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Resistance Box Plug Type Manganin Coil PSAW (1217) Specifications are same asdesribed on page No. 33,consisting of 12mm (approx.1/2”) thick rectangular brass black and resistance coils and made from doubled silk covere Managing wire. Accuracy ±0.05%
A. |
0.01-1 ohms
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B. |
0.01-10 ohms
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C. |
1-50 ohms
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D. |
1-100 ohms
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E. |
1-500 ohms
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F. |
1-1000 ohms
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G. |
1-5000 ohms
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H. |
1-10000 ohms |
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