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SHAPING TONE
The Triode stage of the circuit is located after the Pentode stage. The curve
shift of the Triode is much less extreme than the Pentode and adds nice second
order harmonics. In fact, when you increase the gain beyond a certain point,
the Triode stage brings up the harmonics at a rate of about 2:1 over the
fundamental, allowing you to add a ton of pleasing harmonics!
On either side of the VU meter you will find a 3 position switch labeled
"Boost/Tone" with a color changing LED located directly above it. In the center
position the circuit is inactive and the LED is unlit.
In the "tone" position, a tonal boost is added by revoicing the tube. The LED
will be red in this position. On the Pentode side, engaging the circuit adds a
broad mid boost centered around 1K and on the Triode side an "air" boost/shelf
starting at 10K.
In the "boost" position, engaging the circuit adds an overall boost without
changing the frequency esponse of the corrosponding stage. The LED will be
green in this position.
Triode Stage
Boost / Tone
DONT FORGET
Engaging either boost on the Triode side
disengages the Pentode boost
A N A LO G D E S I G N
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