Hamilton-Kolby BF-PRN-10 Amplifier

The Hamilton-Kolby BF-PRN-10 Amplifier is a premium quality, hand-made small combo amplifier built in the 50's black panel tradition. Powered by a pair of 6V6GT beam power tubes, this amplifier delivers a surprising amount of power for its rated 12 watts. It's modeled after Fender's Princeton Reverb -- the smallest amplifier they made in the 1960s with an integrated spring reverb unit and a super-smooth, bias-modulating tremolo circuit.

  • finger-jointed pine cabinet
  • lacquered tweed covered; oxblood grille cloth
  • eyelet-board construction
  • hand-wired circuitry
  • chassis-mounted brass-and-steel controls
  • 10" ceramic magnet speaker
  • AA1164 vacuum tube circuit
  • Accutronics spring reverb
  • SwitchcraftTM jacks



Power Output: 12 RMS Watts into 8 ohms
Circuit: "AA1164" Class AB push-pull
Speaker: 10" Jensen C10Q
Reverb: integrated Accutronics-type spring tank

Construction: Plated steel chassis; Hand-wired, point-to-point vulcanized fiber circuit board with brass eyelets. Pine finger-jointed cabinet; lacquered tweed covering.

Inputs: 1 Channel, 2 1/4" jacks;
Outputs: 8 ohm speaker, internal and external, 1/4" jacks
Controls: Volume, Treble, Bass, Reverb, Speed, Intensity. Power On/Off, 1A "Slo-Blo" Fuse.
Dual Footswitch for Reverb and Vibrato

Height: 16"
Width: 20"
Depth: 9" at base; 8-1/2 " at top
Weight: 28 lbs.
Power Consumption: 120VAC, 100W

Tube Complement - Amplifier Section:
3 12AX7 Low-Noise Dual Triode
1 12AT7 Dual Triode
2 6V6GT Beam Power Tetrode
1 5AR4/GZ34 Rectifier

Tolex or tweed cabinet covering
Deluxe Leatherette amplifier cover
Customer specified loudspeaker
Customer specified NOS or boutique tubes

Made in U.S.A.
Specifications subject to change without notice.

BF-PRN10 Amplifier

Hamilton-Kolby BF-PRN-10 Amplifier shown in Laquered Tweed covering with leather handle

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Hamilton-Kolby Custom Electronics
Acton, Massachusetts, USA


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