The only JE Lab 300B amp in Singapore, i believe!
Parts used for this project:
- Power Tranny (from Edrel)
- James OPT 6123HS (from an old sunaudio 2a3 diy amp)
- James Choke JS-10-250S (from an old sunaudio 2a3 diy amp)
- Shizuki Oil Filled Capacitor (for psu)
- Mundorf Silver Oil Capacitor (for coupling)
- Nichicon Muse Capacitor (for cathode bypass)
- Kiwame/Riken Resistors
- 300B Full Music Anode Mesh Plate
- RCA 6SN7 Driver Tube
- Sylvania 76 Driver Tube
- RCA 5U4G Rectifier Tube
Template of chassis top plate:
Aluminum plate & L-Section:
Trim the edges to correct size:
Marking before drilling the holes:
After drilling of the top plate and L-Section
First round of sanding the aluminum:
With mounted transformers and sockets:
Under the hood:
Ready for testing:
Dummy load and shorting plugs to be used:
Ripple voltage measured at 3mV:
The completed amp which is now playing good music...
Thanks for looking...
