1-10A Toshiba Large Tube Linear High Current Stabilized Power Supply Board, Low Noise, High Stability, Low Internal Resistance

Please choose the kit or finished board according to your own conditions!Because of the heat dissipation limitation of the board, everyone knows that the maximum output current of the gold-sealed tube is 5A or more than 5A. The output tube is replaced by Toshiba's 2SA1943, and the heat dissipation user will add it separately.Note that the recommended working current is 1A without heat sink. If you need to work with high current, remember to install a heat sink! Also on the thermal silica gel.The benchmark of this kit is ST's LM317, using output tube king 1943 as output, the output linearity is very good at high current, the frequency band is also wider than LT1083, it is very suitable for HIFI power supply, can also be used as laptop power supply, the output also adds CLC 2 level filtering , The high frequency is more pure. Stable under high current output.Board size: 100X88MMInput voltage: AC6V-AC33V, output voltage: DC 3V3-DC37VBecause of the large current, the linear power supply heats up more than the switching power supply, but the ripple is much lower.Pay attention to one point. The rectified voltage after input must be 4V higher than the output. For example, if you output 12V, the minimum input rectified voltage should be 16V, but it is not that the larger the pressure difference, the better.
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