AC 12V 1A 6J1 Value Preamp Tube Preamp Amplifier Board PreAmplifier

AC 12V 1A 6J1 Value Preamp Tube Preamp Amplifier Board PreAmplifier Headphone DIY Kits Welcome To My Shop : Budayakan Membaca Sebelum Membeli Barang Yang Anda Lihat Ini Barang PO (Pre-Order) Produk Import (Luar Negri) Pengiriman Super Cepat, Kebanyakan Barang Yang Kami Kirimkan 7-12 Hari Sudah Sampai Packing Aman dan Secure Produk Original Harap Chat Terlebih Dahulu Sebelum Order Untuk Ketersedian Barang DiGudang Import Happy Shopping ! Features: 1. Type: 6j1 tube2. Power input : AC 12V 1A, 5.5*2.5 plug3. Channle :2.0 / stereo 4. Potentiometer Role: Volume adjustment + Power Switch5. Size: 77 x 75 x 52mmNote: This is DIY Kits, and you need to assembled it by yourself. (No instructions supply) Specification: FE-6J1-2 fever tube pre-amp board is the circuit schematic design imitation crew Music fax X-10D,to be rational optimization,more stable performance than the original machine,tube play 10% increase. This board uses a single 12V AC input,the circuit processing provides 6J1 tube needed positive and negative voltage and filament power supply voltage.Power works: an open power tube filament heating is started,when the boost from the zero-voltage start boosting hot filament tube,etc.,also happens to boost boosting finish,so this is the same with the guts rectification,8*470UF the capacitor filter very clean,good power supply system will not have a hum,the filament is 12V DC power supply,need two filament tube is connected in series with a DC filament also in order to reduce the noise.Instructions: 6J1 Tube Buffer 0.85 times magnification, connected between the source and before or after class, can effectively filter digital flavor. 1. AC 12V input: The DC3.5 / 5.5 * 2.1 socket, 12V AC power adapter, if you use non-plug AC 12V transformer, power cord need to solder on the circuit board. Remember: You can not use a DC power input, SKU - 1255189