IV-11 VFD Tube Clock
This is the central documentation page for IV-11 VFD Tube Clock.
User Manual in English (PDF)
Schematic of the IV-11 VFD Tube Clock (PDF)
Bill of material BOM (PDF)
Assembly Instruction (PDF)
Drawing of the top acrylic sheet (PDF)
Step-by-step Assembly VIDEO Guide
How to Troubleshoot
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 TP3
TP1 should be around 1.3V, and TP3 should be around 26V. If not, something is wrong with your power supply portion.