Sweet Spot

18W/25W Sweet Spot with full EQ, vibrato, and reverb uses 6V6s or 6L6s.

Specifications

Output Power	18 watts (6V6 power tubes) or 25 watts (6L6 power tubes with plug-in solid-state rectifier).
Tube Complement	(4) 12AX7s, (2) 6V6 or 6L6 and (1) GZ34.
Class	AB push-pull with adjustable fixed bias.
Equalization	Treble, Bass and Mid/Raw controls.
Reverb	All-tube driven 3-spring medium-delay Accutronics tank in a heavy vinyl bag with shielded cables.
Vibrato/Tremolo	Deeper vibrato than original Princeton Reverb.
Chassis	Thick 14 ga aluminum for low weight, low noise, no corrosion.
Circuitry	Hand-wired point-to-point with tinned solid-core PVC wiring, G-10 glass epoxy circuit board with brass eyelets. Carbon film resistors, Mallory M150 and CDM silver mica tone capacitors, Switchcraft jacks, Carling switches, Belton micalex 9-pin sockets, and ceramic octal sockets.
Topology	Design is loosely based on the Fender Princeton Reverb™ but with many enhancements such as a standby switch, MID/RAW control, bright switch, fixed bias phase inverter, deeper vibrato, adjustable power tube bias and bias measurement jacks.
Cabinet	Finger-jointed pine with black Tolex covering and black/white/silver sparkle grill cloth. Tolex covered rear screw-on panels, rubber feet, black rubber (steel reinforced) carrying handle with chrome caps and screws and bottom chrome corners.
Speaker(s)	Eminence Copperhead 10" in the 1x10 combo. Eminence Red, White and Blues 12" in the 1x12.
Special Features	Bright switch, RAW mid/gain boost control, rear panel bias measurement jacks, bias adjustment pot, fixed bias phase inverter and a lightweight aluminum chassis.