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- ¸ðµ¨ ¹øÈ£: Filter regulated
- ÃÖ´ë ä³Î´ç Àü·Â: Àü¿ø ¾øÀ½
- ºê·£µå À̸§: LUSYA
- ±Ù¿ø: CN (Á¤Ç°)
- Type2: Power supply board
- Input voltage: Filter regulated
High Voltage Filament Filter regulated Power Supply Board 12V
DIY KITS needs to be soldered by itself
Description:
This kit is a set of 7812 parallel, maximum 2A output capacity can be output to the 12V filament
A group of high voltage output, adjustable output voltage, 100-380V
Single Supply 12V Filament Voltage Output 12V (Max 2A)
High pressure 100-380V (maximum 0.3A)
Principle description:
The filament reissue defaults to 2 7812, which is the output 12V. If you replace the 7806, you can output 6V to the filament.
The output voltage of the high voltage regulator is related to the input voltage. When the input voltage changes, the output can be stabilized at a value. Assuming 100V output, the input transformer is responsible for voltage recommendations greater than 100V, such as 110V, 120V. There are 4 voltage regulators in series on the board. The parameters of the four voltage regulators determine the output voltage. Assuming that one 75V regulator is used, the other regulators are connected by wires, then the output is 75V. Two 75V regulators are connected in series, and the remaining two are shorted by wires, so the output voltage is 150V. And so on, four 75V regulators are installed to output 300V! !
The default regulator is 4 75V and 2 7812.
Using the 7812 regulated output 12V, it has a simple and reliable circuit, and 2 parallels can easily obtain a large current, which is suitable for almost all electronic tube pre-stages. The high voltage part is composed of a field effect transistor and a voltage regulator tube, and a large-capacitance RC filter structure is used to increase the voltage and the output is more stable.
The Zener tube uses an ON original 1W regulator. 1: using 2 original filter capacitors, dedicated amplifier, the sound belongs to the European sound. 2: Filament Filtration Using Sanya professional power supply capacitor filter, a number of small-capacity shunt internal resistance is lower. 3: The use of field-effect transistors combined with the regulator, the effect is better than the general regulator. 4: Use the amplifier to rectify and bridge the bridge to make the tube sound more outstanding! 5: The original input terminals of KEFA are used for input and output, and the reliability is good! (Blue Philips uses a teardown capacitor!)
There is a high voltage part on the board, the voltage is higher than the safe voltage 36V, so must pay attention to the correctness of the installation! Prevent children from approaching!
Package include:
1*
Power supply board
Kit needs to be soldered by itself
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