Key facts
- Manuals
- 2
- Languages
- ZH
- Last added
- 2012-02-07
Featured RAPHAELITE manuals

Sinovt QQE03-12 Push-Pull Kit User Manual
The QQE03-12 push‑pull kit is designed for beginners who want a low‑cost, high‑quality tube amplifier. It uses a 6F2 (ECF82) pre‑amplifier tube and a QQE03-12 (FU‑17) power tube to deliver about 8 W of output in a compact chassis. The power supply employs a high‑quality transformer and a stabilized 200 V rail for reliable operation.
The manual walks you through receiving inspection, component placement on the double‑sided PCB, wiring of the power transformer and output transformer, and provides detailed troubleshooting for common faults such as blown fuses, filament failure, and distortion. It also lists upgrade options for tubes, rectifier tubes, capacitors and resistors, and includes contact information for technical support. This manual is written in Chinese.
Covers: Model Introduction · Receiving Inspection · Assembly Instructions · Wiring Diagram · Troubleshooting · Upgrading Options
RAPHAELITE 6C4-6P6P Single-Ended Kit User Manual
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.
Covers: Model Introduction · Receiving Inspection · Assembly Instructions · Common Fault Troubleshooting · Machine Upgrade · Service Contact
Latest RAPHAELITE manuals
Sinovt QQE03-12 Push-Pull Kit User Manual
User Manual 21 pages · 3.1 MB · ZHThe Sinovt QQE03-12 push‑pull kit manual provides assembly steps, wiring details, troubleshooting and upgrade guidance for beginners.
RAPHAELITE 6C4-6P6P Single-Ended Kit User Manual
User Manual 15 pages · 1.8 MB · ZHThe RAPHAELITE 6C4-6P6P single-ended kit user manual provides assembly steps, inspection checklist, troubleshooting tips, and upgrade options.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in RAPHAELITE manuals
What should I check if the fuse blows?
Inspect the power‑transformer input wiring, verify the polarity of the high‑voltage capacitor, and ensure there is no short on the transformer secondary or rectifier pins.
How can I replace the power tube?
The QQE03-12 power tube can be replaced with other early‑model tubes such as QQE03-12, 6360, or the domestic FU‑17.
How should I inspect the kit after receiving it?
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.
What steps should I take if the power fuse blows?
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.
