This manual introduces the use of the RAPHAELITE 6C4-6P6P single-ended kit, including machine introduction, unpacking inspection, assembly instructions, common fault handling, machine upgrade and service contact information.
The RAPHAELITE 6C4-6P6P is a compact Class‑A single‑ended audio amplifier kit featuring a retro‑style chassis, safety mesh, and optional wooden panel. Its circuit uses 6V6/6P6P power tubes, 6C4/EC86 voltage tubes, a 150W EI power supply, and a low‑leakage epoxy‑sealed transformer designed for future upgrades.
The manual covers receiving inspection, detailed assembly instructions, wiring diagrams, common fault troubleshooting, and guidance for upgrading power tubes, voltage tubes, rectifier tubes, capacitors, and resistors. Service contact information is also provided. This manual is written in Chinese.
| Power Tubes | 6V6/6P6P |
|---|---|
| Voltage Tubes | 6C4/EC86 |
| Power Supply | 150W EI |
| Transformer | Low‑leakage epoxy‑sealed type |
| Coupling Capacitors | American vintage oil‑immersed polypropylene |
Open the box and check the kit’s appearance and the electronic tubes for any transport damage, then verify each component against the packing list and circuit diagram.
Check that the power transformer input wiring is correct, the high‑voltage capacitor polarity is correct, there are no short circuits in the transformer secondary, the rectifier pins are correctly oriented, and the output transformer primary is not shorted to ground.
Verify that the capacitor PCB grounding points are well connected to the chassis metal, that the speaker terminal’s 0 Ω point is properly grounded, and that the RCA input ground and shielding are correctly soldered.