VHT Special 12/20 Head - Manual (Page 7)

1. Power Switch: This switch turns the amplifier on or off.
2. Pentode/Standby/Triode: The Triode setting reduces the amplifier’s maximum output power to approximately one-half of the Pentode set-
ting. Triode setting produces a richer and smoother tone, with earlier breakup than the Pentode setting. The middle position is Standby mode.
3. Watts Control: The Watts control adjusts the output tube’s operating voltage and maximum output power. Maximum output power ranges
from less-than 1 watt (fully counterclockwise) to 12 or 20 watts (fully clockwise).
4. Jewel Light: This light will be illuminated when the Power Switch is in the On position; the jewel light will be off when the Power switch is in
the Off position.
CONTROL PANEL FEATURES
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