LM7806 6N3 SRPP Buffer DIY Kits for Preamplifier AMP Dual 180V-230V with 3 Tubes

 

 

PCB size: the main amplifier board: 10.3 * 7.6cm

Power supply board size: 9.5 * 9.2cm

1.5mm double-sided spray tin process high-quality circuit board

This board is use 6N3 SRPP circuit

 

Power Requirements: Dual 180V-230V three-wire , two independent 6.3V

Power plate forms: high-pressure part after the 6Z4 rectifier ----- 400V220uf capacitor filter output

Low-pressure part of the rectifier bridge rectifier ----- capacitor filter ------ LM7806 regulator ---- capacitor filter output

The 6Z4 filament voltage is AC 6.3V direct input

Power some of the high and low ground has been connected as one part of the power supply has been connected to easier handling of the whole earth

Motherboard parts of the filament wiring two are independent that is not like the 6N3 filament DC friends can be entered directly on the motherboard exchange 6.3V

 

1 x 6N3 SRPP Preamplifier Kits

3 x Tubes