FiveFish VT-73, Assembly Manual

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Copyright © 2017 FiveFish Audio VT-73 Hybrid Tube Mic Preamp Assembly Guide
3.9 Solder all 3mm LED indicator lamps from bottom of board. These LED lamps are optional and not required.
You can arrange the LED colors any way you want. But for consistency, use the same color arrangement on all mic preamp
kits you’ll build.
A typical color arrangement may be
GREEN - for phantom power switch,
BLUE - for 20dB Pad,
YELLOW - for polarity reverse,
RED - for +12dB Boost
IMPORTANT: LONG LEG of the LED must
be oriented at the BOTTOM position as
shown.
NOTE: LEDs are installed from the bottom.
Bend LED legs as shown on photos.