IV-11 VFD Tube Clock

This is the central documentation page for IV-11 VFD Tube Clock.

Step-by-step Assembly VIDEO Guide

How to Troubleshoot

During Soldering/Assembly

  • Follow the soldering tutorial video or Assembly Instruction closely.
  • Do NOT skip steps.
  • Test the voltages as directed. If they are incorrect, stop and figure out the problem. Do not proceed until the voltages test okay.


If it's not working after assembly:
  • Check all IC's to make sure 1) they are at the correct location; 2) they are in correct direction
  • Check diodes to make sure their polarity is correct.

Measure TP1 and TP2

  • TP1 should be around 1.3V, and TP2 should be around 26V. If not, something is wrong with your power supply portion.