Monthly Archives: December 2014

Sanwa PC510 Battery Replacement with Panasonic 9V Extra Heavy Duty

Do you realize that your measurement device also need a battery replacement? Some might not aware about this. Not only your digital device, but also your analog “needle” based measurement...... Read More

DIY Power Supply Cable with Fuse and Alligator Clips

I’m not quite sure if the title above is correct, but I just can’t figure out something better. Basically, when you are doing DIY, then you will play a lot...... Read More

RCA 7N7 Vacuum Tube (to Replace 6SN7)

It’s always interesting to try something new – especially vacuum tube. Sometime you can get something from unknown thing. I’m quite sure we are familiar with 6SN7 vacuum tube, which...... Read More

Universal Tube Power Supply Unit Design Plan

As a DIY, I think it’s important to have a dedicated power supply module. I have tried several design, but finally got tired if I have to finalized the build...... Read More

J&K Audio Design Custom Level 4 Power Transformer

After a long time waiting, finally I got this transformer on hand – myself. This is the Ultimate Level 4 Power Transformer from J&K Audio Design. You can read some...... Read More