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)

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.

STEP-BY-STEP TROUBLESHOOTING

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.