{"product_id":"single-end-class-a-6f3-300b-tube-amplifier-kit-power-amplifier-diy-parts","title":"Single-end Class A 6F3+300B Tube Amplifier Kit Power Amplifier DIY Parts","description":"\u003cp\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003cbr\u003eWight: 17kg\u003cbr\u003ePower: 7.5W\u003cbr\u003ePower consumption: 160W\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e1. The internal resistance of 300B is only 800 ohms, and the damping coefficient is very good.\u003cbr\u003e2. The 300B tube is the best way to reflect the original atmosphere of the music, because the characteristic curve of the tube is very well distributed, coupled with the second harmonic hearing, the mouth shape of the singer, the low frequency tension of the chest resonance and dynamic. \u003cbr\u003e3. The sound of 300B amplifier is more vivid and full of music. This 300B kit has unique acoustic and electrical regulations from the design to the selection of the output cattle.\u003cbr\u003e4. 6F3 is a partial gate composite tube, which is equivalent to a 12ax7+6p14. The performance is extremely excellent, especially connected as a 3 pole tube. The output internal resistance is particularly low, and the linearity is good.\u003cbr\u003e5. For the consideration of sound and stability, a large loop feedback is used to improve the weakness of the low frequency of the tube, so that the internal resistance of the 300B amplifier must be lower, and the overall balance of the sound can be achieved.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrief Introduction to Kit List:\u003c\/b\u003e\u003cbr\u003e260W power supply cattle*1 (British red bull core 105*70)\u003cbr\u003e25W output cattle* 2 (British antique iron core 86*40) impedance: 3.4K. Output: 0-4-8\u003cbr\u003eChoke ring*1 (Japan Z11 core 76*50,10H250ma)\u003cbr\u003e300B*2 (brand-new original factory paired HI_FI series)\u003cbr\u003e6f3*2 (old Shanghai)\u003cbr\u003e5Z2P*2 (J level)\u003cbr\u003ePotentiometer*1 (original alps 27 type 50K)\u003cbr\u003eOutput terminal*6 (gold plated high current 2 black and 4 red)\u003cbr\u003eRCA input terminal*4 (gold plated, 2 red and 2 white, signal conversion switch * 1)\u003cbr\u003ePipe seat*6 (big 4 feet*2, 8 feet*2, 9 feet with shield*2)\u003cbr\u003eResistance pack*1 (high current*4, low power as figure parameters)\u003cbr\u003eWelded plates (4 sets, with screws)\u003cbr\u003eCircuit diagram*1 (with actual improved parameters)\u003cbr\u003eSupporting package*1 (1m high quality signal line, 2m USA silver-plated tinned wire)\u003cbr\u003eDelay circuit finished board *1\u003cbr\u003eChassis: chassis bottom, lining, upper chassis (3D: 420*240*65mm) \u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage List:\u003c\/b\u003e\u003cbr\u003e1 x Tube Amplifier Kit\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 709px;\" src=\"https:\/\/www.byimg.com\/catalog\/66812\/66812.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40825513443377,"sku":"66812","price":777.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7077106352177_watermarked_0.jpg_0.png?v=1767967252","url":"https:\/\/www.thanksbuyer.com\/ko\/products\/single-end-class-a-6f3-300b-tube-amplifier-kit-power-amplifier-diy-parts","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}