Universal stereo tube output stage. Complete module including the specially designed over spec power transformer for 115 to 240 V operation. Hybrid anode follower with circle of two CCS using ECC88/6922/6DJ8/6H1/6CG7 (not included); S/N ratio > 100 DBA, 2V RMS into a 10K THD is around 0.1%, 20 Hz to 20 KHz <-0.5db, output minimum 10V RMS on clip into 10K load <1% THD, output impedance is 75-100 ohm; one board can do stereo RCA output tube stage for a DAC, two boards can do balance output tubes stage DAC. One board could make a nice simple line stage, two boards could be configured as a balanced line stage, or an RC RIAA between two boards would make a nice phono stage with about 40 DB of gain, or two boards with a 10K LCR and a 10K termination resistor would be an easy way to build an LCR phono stage. Also includes Obbligatto coupling capacitor.

Dimensions = 140 mm x 80 mm x 45 mm. Fixing holes in the four corners on a 71mm X 131mm rectangle. Fixing holes require M3 or equivalent screws.

Tube used: ECC88/6DJ8/6922/6H1/6CG7 only. Do NOT fit 6H30 or 6H6.

Includes purpose made toroid transformer capable of driving 2 of the Universal tube stages. Transformer dimensions are 76 mm diameter x 40 mm. Fixing with either central M4/M5 bolt or via 4 racetrack shaped 8mm X 5mm Holes centered on a 60mm square
115/230 V input.

Note: Does not include tube.

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