New and improved version, adding filament suspension circuit, better circuit performance, overall improvement of signal-to-noise ratio and tube's life.
PCB Size: 220mm*133mm
Using tube: 2pcs 12AU7 or ECC82 (note: this list price are not include the tubes)
Works volage:
AC1---High voltage：0-AC280V (0.1A)
AC2---filament：0-AC9V (2.5A)
AC3-- delay：0-AC8V (0.5A)
The package will come with schematic and BOM.
The package will come with schematic and BOM.
NOTE: We have PCB or DIY kit or finished board (Optional)
◆ PCB ---- Just one PCB. not include other parts.
◆ DIY kit ---- Inlcude all parts. It needs to be welded by yourself.
◆ Finished board ---- We will solder and test it well before shipping.
