1955 Fender Princeton Tweed Vintage Tube Amp Narrow Panel Big Box 5F2 Circuit w/ Jensen
The circuit couldn't be more simple and pure, with single Volume and Tone knobs and a Class A circuit design, powered by a single 6V6 power tube. The tone is articulate, dynamic and commanding, with the sizzle and churning overdrive of a Champ, but with more tonal range and fuller low end. The top end response is just right, and the amp doesn't get too trebly, making the tone control quite usable for dialing in exactly as much zing and snap as you desire.
The circuit retains the original Triad transformers, Stackpole pots, carbon comp resistors, and red Astron "dynamite" capacitors. The Stackpole pots both date to the 41st week of 1955, soldered to the original "domino" resistor. The power supply caps and smaller electrolytics have been replaced with high quality modern Spragues. The tubes include a vintage GE 5Y3 rectifier and matched 6V6 power tube, with a GE 12AX7 in the preamp. The speaker is the original Jensen 8J11 alnico magnet driver with a clean frame and date stamp from the 51st week of '54. The speaker has also been freshly reconed. The tube chart is pristine, with a handwritten serial number and "EJ" date stamp (October, 1955), with a matching stamp on the speaker frame.
The original tweed is notably clean, along with the original oxblood/gold stripe grillcloth. The faceplate is extremely clean, with all of the white silkscreened text, gleaming chrome, and a pair of original chicken head knobs. The leather handle is a clean, vintage-spec replacement.




















Description
The circuit couldn't be more simple and pure, with single Volume and Tone knobs and a Class A circuit design, powered by a single 6V6 power tube. The tone is articulate, dynamic and commanding, with the sizzle and churning overdrive of a Champ, but with more tonal range and fuller low end. The top end response is just right, and the amp doesn't get too trebly, making the tone control quite usable for dialing in exactly as much zing and snap as you desire.
The circuit retains the original Triad transformers, Stackpole pots, carbon comp resistors, and red Astron "dynamite" capacitors. The Stackpole pots both date to the 41st week of 1955, soldered to the original "domino" resistor. The power supply caps and smaller electrolytics have been replaced with high quality modern Spragues. The tubes include a vintage GE 5Y3 rectifier and matched 6V6 power tube, with a GE 12AX7 in the preamp. The speaker is the original Jensen 8J11 alnico magnet driver with a clean frame and date stamp from the 51st week of '54. The speaker has also been freshly reconed. The tube chart is pristine, with a handwritten serial number and "EJ" date stamp (October, 1955), with a matching stamp on the speaker frame.
The original tweed is notably clean, along with the original oxblood/gold stripe grillcloth. The faceplate is extremely clean, with all of the white silkscreened text, gleaming chrome, and a pair of original chicken head knobs. The leather handle is a clean, vintage-spec replacement.
























