Electron tube preamp/ electron tube / amplifier dedicated high voltage / filament filter regulated power supply board
Dedicated to high-quality electronic tube amplifier and front stage voltage regulator kit, materials and matching is very good, especially using 2 6Z4 electronic tube rectifier. Much better than diode rectifiers for similar boards.
The filament voltage is adjustable and the 6V or 12V current can be output. The maximum is 3A
1, filament filter adopts LT1085 3A voltage regulator, current ratio 7812 feet, ripple lower
2, the use of field effect tube combined with voltage regulator, the effect is better than the general regulator.
3, the use of double 6Z4 tube rectifier diode rectifier bridge put, much better than
4, PCB for double-sided gold-plated, very beautiful atmosphere
Size: 108MMX98MM
The output voltage of the high voltage regulator is related to the input voltage, and the input voltage changes and the output can be stabilized at one value. Assuming output 100V, then the input transformer is responsible for voltage recommendations greater than 100V, such as 110V, 120V can. The board has 4 Zener placeholder series, the four parameter regulator determines the output voltage, 1 75V regulator with hypothesis, connect other work voltage wires, then the output is 75V, assuming 2 75V zener diode series, only the remaining 2 wire circuit, so the output voltage is 150V. And so on, 4 75V regulators are installed, that is, output 300V
The default regulator is 4 75V
![X-1](https://ae01.alicdn.com/kf/HTB1bF8LSXXXXXc1XpXXq6xXFXXXa.jpg?size=97397&height=702&width=739&hash=06ba02091bed266de4bb62cb40e53763)
![X-2](https://ae01.alicdn.com/kf/HTB1s1pLSXXXXXaKXFXXq6xXFXXXQ.jpg?size=98757&height=714&width=739&hash=164d1e2ce2afa18194c43b73a91f1bb6)
![X-3](https://ae01.alicdn.com/kf/HTB1f2J2SXXXXXcDXXXXq6xXFXXXP.jpg?size=119134&height=736&width=739&hash=12c0a23f71b959ac37a4b4276dadbd32)