Proto-Board Station
- Lifetime guarantee on sockets
- Built-in function generator and triple output power supply
- 8 channel logic monitor
- 8 selectable logic switches
- High and low buffered logic indicators
The PB503 is a complete design workstation, including instrumentation, breadboarding and a rugged DC regulated triple power supply. The instrumentation features a 100KHz function generator with sine, square and triangle waveforms, plus a TTL output for generating clock pulses. Also standard are two digital pulsers operated by debounced push-button switches and eight logic state indicators which operate as individual logic probes. This unit contains multiple features in one complete test instrument, saving hundreds of dollars needed for individual units. The PB503 design station takes up just over 1 square foot of desk space, while delivering the functionality of a full test bech of performance. The removable breadboarding area has a total of 2520 uncommitted tie points, enough space for circuits containing 24 IC's of 14 pins or equivalent. The breadboarding sockets have an unlimited lifetime manufacturer's guarantee. The power supply offers three DC regulated supplies, one fixed at +5v and variable from 1.3 to 15v. All three supplies are short-circuit protected, automatically current limiting the output to a safe level. Operates at 115V, measures 16 x 11-1/2 x 6-1/2" and weighs 7 lbs. Comes complete with manual and 3-year manufacturer's warranty.

| 123-955 | |
| Output | |
| Fixed DC Output | +5V @ 1.0A |
| Variable DC Output | +5V to 15V @ 0.5A |
| Variable DC Output | -5 to -15V @ 0.5A |
| Function Generator | |
| Frequency Range | 0.1 Hz to 100KHz |
| Output Voltage | 0 to ±10V (20V, P-P) |
| Output Waveforms | Sine, square, triangle |
| TTL. Output Impedance | 600 ohms (except TTL) |
| Output Current | 10mA maximum, short circuit protected |
| Logic Indicators | Eight LEDs active high, 1.4 volt (nominal) threshold, input protected to ±20 volts |
| Debounced Pushbuttons | (Pulsers) Two-push button, open-collector output pulsers, each with one normally open, one normally closed output. Each output can sink up to 250mA |
| Potentiometers | One 1k ohm, one 10k ohm, all leads available and uncommitted |
| BNC Connectors | Two BNC connectors, pin and shell available and uncommitted |
| Switches | Two SPDT slilde switches, all leads available and uncommitted. 8-pole DIP switch: one side of all eight switches separate, available and uncommitted |




