"Wild_Bill"

I bought a Peavey Mace VT guitar amp (bare, no enclosure) which has a power
output capability of about 150 watts, by way of a power section utilizing 6
each, 6L6GC tubes, arranged in 3 paralleled pairs (2 sets of 3), feeding
the center-tapped output transformer.

I'd like to just use 2 tubes (~ 50W) for the power section, but don't know
if the power circuit would need to be modified for only using 2 of the
tubes.

** No mod is needed.

But the speaker load impedance will need to be 3 ( or 4 ) times the
currently rated value.

If it is 4 ohms now, then the ideal is 12 ohms, 16 ohms is near enough.

So, get two 8 ohm guitar speakers of about 30 watts rating and connect them
in series.



...... Phil