Clocks Types B401, B405

Summary This document provides technical specifications for the B401 and B405 series clock modules.

• B401 Variable Clock: This module features an RC-coupled oscillator designed for a wide range of frequencies. Users can adjust the frequency by selecting different capacitor terminals (J, K, L, or external) and fine-tuning with internal or optional external rheostats. It produces standard pulses.
• B405 Crystal Clock: This is a fixed-frequency oscillator utilizing a series resonant crystal to provide high stability (0.01% over a temperature range of -20°C to +55°C). It outputs 40-nanosecond pulses.

Both models offer specific power requirements and output configurations suitable for driving 10-mc inverter loads. Pricing is listed at $57.00 for the B401 and $100.00 for the B405.