Based on the Custom 50 head, but with special modifications as commissioned by Dave Gilmour of Pink Floyd himself, the DG-504 adds a bit of modern sophistication to the classic performance amplifier. In addition to the Bass, Treble, Presence and Master Volume controls, the DG-504 uses a specially linked input system, where the gain of each channel can be altered to suit different musical styles. Built using Partridge transformers, 4 x ECC-83 tubes in the preamp section, 2 x EL-34 tubes in the power stage, and is rated at 50 watts output, with switchable 4, 8 & 16 ohms impedance. A look inside the amplifier will reveal point-to-point hand wiring, turret tag boards (no printed circuits), and hand laced wiring harnesses. The power and output transformers are manufactured by Partridge, the original 1970's supplier to the original design sheets. The components and wires are the modern available equivalents of the vintage components, 1-watt carbon resistors, and wound polyester capacitors being used throughout.
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