本帖最後由 mig33 於 2014-9-3 14:25 編輯
早年在鴨記買過隻降壓牛,老闆話係香港造,P字頭牌,好重。
唔知係真唔真?現在還有香港造的火牛嗎? ...
wongck5 發表於 3-9-2014 12:28 PM 
訂做一個100W 環牛 (IN 220, OUT 100), make better 220V socket with fuse (2A), add grounding for safety and most difficult is fixing the outlet of 100V socket, have to cut metal plate of the case... |