| Description |
A six-decade resistance substitution box designed for use in educational establishments.
|
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
|
A compact power supply offering 2, 4, 6, 8, 10, and 12 volts at currents of up to 5A. Both dc and ac outputs may be used simultaneously up to the rated output. The output is protected by a push button cut-out. The unit is 2A fused on the back panel and comes complete with a moulded mains lead and plug. 4 units are designed to fit in a shallow Gratnell tray.
|
Pack of 10 24V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.
|
Designed for use with electronic modules, transistors, amplifiers etc. (IPC-0572-P). where the current required is not more than 1A, this power supply provides a smoothed and regulated DC output voltage with a ripple typically less than 50mV. Output up to 15VDC positive and negative (with respect to zero) in 5 stepped ranges: 5, 6, 9, 12 and 15VDC. The outputs are from three 4mm sockets: positive, zero and negative, colour coded red, blue and black respectively. The outputs are switched by means of a rotating knob. Overload and short circuit protection is built in. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish.
| By connecting an ac power source to one of the coils and reading the voltage from the other coil transformer action (either step up or step down) may be readily demonstrated. The efficiency of the transformer may be studied –does the efficiency change if the laminate top is not firmly fixed? What happens if it is not present? Other more esoteric effects such as Magnetostriction may also be studied. |
| Content |
- Simulates resistances from 1Ω to 999,999Ω in 1Ω steps
- The required resistance is set by selecting the correct value from six rotary decade switches which clearly indicate the value selected by the student
- An additional 1kΩ resistor is provided connected between one of the terminals of the internal resistance and a third terminal so the unit can be used as an accurate potential divider
- All outputs are on 4mm terminals with 4mm sockets
- Housed in a tough ABS box with non-slip rubber feet
- Voltage rating 250V
- Power rating 600mW
- Dimensions 110 x 75 x 50mm
- Designed and manufactured in the UK
|
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
|
Specification
- Input Supply voltage 230V dc
- Supply frequency 50Hz
- Mains fuse Rear panel 2A, 20mm quick blow Mains plug 3A
- Output Voltage 2, 4, 6, 8, 10, 12V ac nominal 1, 3, 5, 7, 9, 11V full wave rectified dc nominal
- Maximum output current 5A ac or dc
- Manufactured in the UK
|
Pack of 10 24V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.
| Description: Dual Regulated PSU
Part Number: IPC-0572-P
Electrical Supply: 220-240VAC, 50-60Hz
Dimensions: 179 x 190 x 85mm overall
Mass: 2.3kg
DC Output Voltage Range: 5, 6, 9, 12 and 15VDC (both negative and positive)
Maximum DC Output Current: 1A |
A demountable transformer kit is an ideal way to demonstrate transformer action. The kit comprises three coils, one with 300 turns, one with 600 turns and one with 1200 turns. These slide onto a laminated steel frame to form several possible transformer configurations.
|
