SUQIYA-Preamplifier PRT09A Chole Buffer Amplifier Finished Board - Reference UK Music Fax X10D | Электроника

SUQIYA-Preamplifier PRT09A Chole Buffer Amplifier Finished Board - Reference UK Music Fax X10D | Электроника

The PRT09A is optimized for reference to the music fax X10D core circuit.   The PRT09A is heavily modified on the power supply section without changing the front stage of the X10D main circuit. The 09A uses a better parallel Class A regulated power supply and boosts the voltage to plus or minus 36VDC.   Our parallel Class A regulated power supply has ultra-low internal resistance, low ripple, excellent listening performance, and is equipped with a special Njikang KZ1000uF filter capacitor. The overall frequency is very balanced. Balance is very important because it is applied to the front end.   In the power supply, we use LT1085 voltage regulator to supply power to the two tubes respectively, to avoid failure due to the different internal resistance of the filament when the series power supply is used. On the other hand, the LT1085 can be adjusted and regulated, and the filament voltage can be adjusted as long as the power supply ( AC) Keep up, players have a wealth of compatible tube options.   In the choice of bile ducts, we recommend: 1, 6H30P 2, 6DJ8 3,6922 4, players can try different fever bile ducts to bring a different tone performance    Good music performance is indispensable for the support of high-quality devices. The application of the biliary buffer to the front end is important for each device;    Material configuration: VISHAY smooth glass sealing rectifier, the main filter capacitor is Nikko KZ 1000uF, and we do not choose Nichicon KZ capacitor on the retreat, but a purposeful choice to ELNA Thailand products . The triode for power supply, equipped with Toshiba name tube, such as A970-C2240, A1358-C3421. The key coupling capacitor selection, no personality, very balanced.   Input voltage: AC28-0-28 is not lower than 40MA             When the filament is used as a 6.3V bile duct, AC7-9V, no less than 1A current PCB size: 102*177*1.6MM FR4 Class A plate Note: This is a finished boards and tested, does not contain tubes and transformers