Install The Fx Board; High Voltage B+ Adjustment - Trinity Amps Tube Effects Loop Builder's Manual

6. INSTALL THE FX BOARD

With all the wires connected, remove the nuts from the SEND and RETURN jacks.
Fit them through the previously drilled holes in the chassis. Use the fibre washers to set the depth of thread in
the hole. Screw on the jack nuts back on to hold the Fx PCB in place. Tighten.

7. HIGH VOLTAGE B+ ADJUSTMENT

Turn the amp on and if equipped with a Standby switch, place in Play
mode, ensuring that you have an adequate load connected to the speaker jack. Measure the B+ Fx board voltage
again, and compare to the previous measurement step 4. If the B+ has dropped more than 10VDC, it could
slightly affect the amplifier's tone and dynamics - the more the difference in the original voltage the more affect
it will have on tone. If this is the case, changing the B+ second stage dropping resistor to a lower value will allow
the B+ to return to its original value. In many amps the resistor(s) are 10K (1-3W) or in a range of 6.8K-22K.
Experiment with replacing the resistor with another that has a value that is 2-10K less.
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