6SN7 6N8P tube tone pre-stage tuning board, bile pre-stage, 6Z5 bile rectifier. Frequency response: 20HZ-28KHZ, gain: 5 times

6SN7 6N8P tube bile pre-stage tuning board finished board, 6Z5 bile rectifier, frequency response 20HZ-28KHZ

6N8P 6SN7 CV181 tube tone pre-stage bile pre-stage, tuning front bile rectifier, high and low bass frequency response 20HZ-20KHZ

6SN7 6N8P tube bile pre-stage tuning board finished board, 6Z5 bile rectifier, frequency response 20HZ-28KHZ

6SN7 6N8P Tube Tone Pre-Board Tuning Board Tone Board Bile Pre-stage 6Z5 Bile Rectifier Tube Amplifier Board

6N8P 6SN7 tube preamplifier 6Z5P bile rectifier, solid wood box hifi front bile preamp, frequency response: 10HZ-100KHZ

6H8C 6SN7 6N8P CV181 single tube bile preamplifier, tube preamplifier, 5Z4P bile rectifier. Frequency Response 10Hz-40KHz -0.5DB

6C4 electron tube front stage, high resolution, single triode, 5Z4P bile rectifier. Frequency Response: 10Hz-40KHz -0.5DB

old Chen tube machine pure hand bile rectifier EL34 fever tube amplifier tube amplifier, frequency response: 20Hz--25KHz

Dawning 6N8P bile preamp tube preamplifier 5Z4P bile rectifier, frequency response: 10-40KHz (-0.5DB)

6SN7 6N8P Tube Tone Pre-stage Tuning Board Tone Board Bile Pre-stage 6Z5 Bile Rectification

6SN7 6N8P Tube Tone Front Stage Tuning Board Bile Preamp Amplifier 6Z5 Rectification Preamplifier Finished

New 6N8P 6SN7 CV181 tube pre-stage 6Z5P bile rectifier HIFI front, frequency response 10HZ-100KHz, distortion less than 0.2%

6p1 Class A single-ended parallel pure tube amplifier rectifier, 6n8p push 6p1, manual scaffolding, frequency response 20-20khz

Mellow and elastic,6H8C/6SN7/6N8P/CV181 single tube bile preamplifier, tube preamplifier, 5Z4P bile rectifier, power amplifier

600: 60K Permalloy audio transformer, 10 times passive amplification, frequency response: 20Hz ～ 28KHz -1.5DB

6SN7 6N8P Tube Tone Pre-stage Tuning Board Tone Board Bile Pre-stage 6Z5 Bile Rectification

10W 1K: 0-4-8Ω single-ended output transformer, 6N5P tube power amplifier audio transformer, frequency response: 20HZ-28KHZ

6SN7 6N8P Tube Tone Preamplifier Board Tuning Board 6Z5 Gallbladder Rectifier

6SN7 6N8P Tube Tone Preamplifier Board Tuning Board 6Z5 Gallbladder Rectifier

6N8P 6SN7 CV181 electronic tube front stage 6Z5P bile rectifier HIFI front solid wood log box,Frequency response: 10HZ-100KHZ

6SN7 6N8P Tube Tone Preamplifier Board Tuning Board 6Z5 Gallbladder Rectifier

600 ohm 2K4 wide-band response single-ended balance transformer 2 times voltage gain, high coupling coefficient, wide frequency

Assembled 6Z5P+6N8P*2 (6SN7)Tube Pre-amplifier Board Bile Rectifier for HIFI AMP

6N8P 6SN7 CV181 electronic tube front stage 6Z5P bile rectifier HIFI front solid wood log box ,10HZ-100KHZ

6N8P 6H8C 6SN7 CV181 Pre-amplifier Board 6Z5P/6X5 Bile Rectifier Direct Coupling

Latest upgrade 6N8P 6SN7 tube preamplifier 6Z5P bile rectifier, solid wood box hifi front bile preamp/Output voltage: 2V-20V

HIFI A20B 8W*2 6N3C/EL34 Single-ended Class A Electronic Tube pure Bile Amplifier ,Frequency response: 20Hz-25kHz

6G2P+6P12 6W+6W Single-ended Class A Fever Low-power Tube Amplifier Frequency Response: 20HZ-28KHz ±2db

Frequency response:20Hz~52KHz -2D over-signal current 15mA 5 times boost permalloy 600Ω:15K audio signal isolation transformer

Frequency response:20Hz~52KHz -2D over-signal current 15mA 5 times boost permalloy 600Ω:15K audio signal isolation transformer

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