British Quad (National Capital)Ⅱ KT66 tube amplifier board stereo.
Quad (country capital) Ⅱ circuit, EF86 (6J8) tube 4 amplifying inverted push-pull output, pushing 4 KT66 tubes, 4 KT66 tubes are designed on the board for easy installation. KT66 is 25w+25w, EL34 finished board is 45w+45w
Exquisite FR4 double-sided glass fiber board gold-plated board, board size 240×110mm, board thickness 2mm. The resistance and capacitance parameters are marked on the board, the circuit performance is excellent, the wiring is reasonable, and the circuit is quiet. As long as the wiring is correct, one-time success is a shortcut to success. It is also suitable for pushing 6550, KT88, EL34, 6L6G, 5881, 6CA7, 6P3P, 6P14 and other power tubes.
The circuit board can be used for EL34 power tube, just replace the 4 180 ohm 25W aluminum shell resistors on the board with 240 ohm or 250 ohm. Please pay attention when shooting.
Component foot pitch, base foot pitch, foot hole size and other design are reasonable, suitable for large and small power resistors and capacitors. The electronic tube holders are designed for dual use, and the resistance and capacitance components can be assembled and welded on both sides.
The tube sockets are designed with round and flat feet. The flat-foot holes are easier to solder than round-foot holes and do not leak tin. It is suitable for use in various electronic tube DIY circuits.
The RC element has double-sided characters, which can be assembled on both sides, and the tube can be exposed for installation. Note: The pipe socket must be connected to the character assembly, not reversed.
The port identification on the board is detailed, and the input, output, feedback, choke, power transformer, output transformer, cathode feedback wiring port, filament, etc. are marked in detail, and the assembly wiring is simple and not complicated.
Line features: the sound is generous and relaxed, the courage is unique, and the classic British flavor.
Affirmation: The components on the finished board are different due to different assembly batches, and the types, brands, models, specifications and parameters of some components will be slightly different. The components and parameters assembled on the received board shall prevail! Some components on the circuit board are second-hand disassembled products, and the finished boards are tested and sold normally.
