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 into something complete. Not to mention that space might be...

Tamura’s iron is not new kid on the block. They have been here for a quite long time. Even Westerner also admits the quality of Tamura (well, we can see some contenders from West side but hardly to beat Japanese...

As  my Sowter Choke Input was acquisitioned by my friend. Then I have to consider some replacement. Actually my friend was interested with Hashimoto or similar, but as most of the Choke Input was designed for power amp, instead of...