Assembled Board with capacitance ，As the picture show，have tested it well ！included all parts ！（not included 3pcs tubes）. Tube model: SHUGUANG 12AX7 /JJ ECC83S 3.
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Fever Pre Amplifier Preamp AMP 6J1 / 6J2 Tube Headphone Buffer DIY Kit Module Stereo Potentiometer 12V
Aliexpress UK
Inspired classic circuit, adopting the best PCB and luxury components, which you can clearly see from the pictures. Very suitable MM turntables, greatly upgrade your sound quality.
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6J1/6J2 Tube Amplifiers Audio board Amplificador Pre-Amp Audio Mixer 6J1 Valve Preamp Bile Buffer Diy Kits
Aliexpress UK
6F2（6U8、ECF82）×2. 6AQ5（ 6005、6095、EL90）×4. Output power: 10W x 2. BC / wima capacitance. Tube model Assembled Board:have solder it well ,Not included all tubes ! Not included all tubes !
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PSVANE EL34C EL34 VacuumTube Replaces EL34B KT77 5881 6L6G 6CA7 HIFI Audio Valve Electronic Tube AMP Amplifier Kit DIY Aogutx
Aliexpress UK
Tube model：6V6 4+ ECF80 2. SCR MKP Audio Capacitor + VISHAY BC Capacitor + Nichicon KZ Capacitor. Gold plated tube seat. Assembled Board：have tested it well ！（Not included 6pcs tubes）. 0-6.3V @4A.
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OCL High-Power Amplifier DIY Kit AC12-18V 2.0-Channel DIY Amplifier Electronics Kit Speaker Amplifier Module
Aliexpress UK
2x QUAD606 Kit Amplifier Board. The original operational amplifier TLC271 high performance OP is used. Output transistor using the original Hua Wei Semiconductor 2SD718 power tube (140V,10A, 100W) 6 per channel.
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DIY Kits 12AX7 + 6Z4 tube power amplifier board JP200 HIFI Tube Preamplifier
Aliexpress UK
The toroidal design provides high efficiency, low noise, minimal hum, and excellent regulation, ensuring clean, dynamic, and detailed sound reproduction. DIY Hi-Fi 300B Single Ended stereo amplifier kit.
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Mullard 12AX7 ECC83 Vacuum Tube HIFI Audio Valve Electronic Tube Amplifier Kit Diy Factory Precision Matched Quad Phono Preamp
Aliexpress UK
Tube model: 6X4 (ez90) 1, 12AY7 (6072) 8. The circuit is based on the very expensive kondo (audionote) M77 model. Tube preamplifier, compatible with Phono amplifier. It is designed to turn off the Phono amplifier function independently, switch the signal of 4-channel relay, and reserve a way to add chokes by yourself.
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PSVANE HIFI 12BH7 Vacuum Tube Valve Replace 12BH7A 6N6 7119 for Audio Valve Electronic Tube Amplifier Kit DIY Matched Quad
Aliexpress UK
Support 4 ways audio input. Gold-plated tube seat. Match tube Assembled board ，just for reference：. Gold-plated pcb. 6DJ8 or ECC88 x1.
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FEIYUE PSVANE 6L6GB 6L6 Vacuum Tube Valve Replace 5881 6L6G 6CA7 EL34 6P3P EL34C Electronic Tube HIFI Audio Amp Kit DIY Matched
Aliexpress UK