PB-501 Logic Design Trainer
The low cost PB-501 Logic Trainer permits students of digital electronics to make efficient use of valuable laboratory time. Circuits such as clocks, switches and lights are permanent parts of the PB- 501 and need not be repeatedly constructed. Students build only those circuits which directly pertain to a particular experiment.

Everything required to design and experiment with logic circuitry is included in the PB-501. Power is supplied by either four 1.5V batteries or an optional AC adapter. The PB-501 is housed in a tough molded plastic carrying case with an integral hinged cover which stacks conveniently for storage.

Power:
4 “C” batteries (not included). Optional 6 VDC battery adapter,
300mA, unregulated Model 1200CA-1

Clock:
1 KHz user variable with external capacitor
Logic “1” output current 100 mA max
Logic “0” output current 100mA max

Pulsers:
Logic “1” output current 400µAmps
Logic “0” output current 16mA max

Logic Switches/Input Ports:
Dual Function: 8 switches buffered by two 4 bit tri-state buffers with separate enables Logic “1” output current 2.6 mA max, Logic “0” output current 24 mA max Enables Logic “1” input current 400mA @ 5VDC Logic “0” input current none required.

Logic Indicators:
Dual function: 8 LEDs driven by two 4-bit latches with separate enables

Output Ports:
Logic “1” input current 50µA @ 5VDC Logic “0” input current none required

Connectors:
All functions are permanently connected to a solderless tie point connector.Each tie point has 5 solderless connection points. Power and ground have 15 connection points each. All tie points are labeled.

Breadboarding:
One UBS-100 solderless breadboarding socket is permanently attached to the unit. The UBS-100 can accomodate up to eight 14 pin DIP ICs with 4 tie points per pin plus eight power rails with 25 tie points each, total 840 tie points

Dimensions:
2.562”H x 7.5”W x 10” D

Weight: (less batteries and adaptor) 1 lb. 6 oz.

Model Number 104-0501

PB-501 . . . . . . . $155.00