"Franc Zabkar" wrote in message
...

| I've encountered a Sansui amp where the main bridge rectifier was
| constructed using four parallel pairs of 1A rectifier diodes rather
| than four individual 2A or 3A diodes. Placing diodes in parallel is
| bad practice because their sharp I-V characteristic almost guarantees
| that one will work harder then the other, so my only conclusion is
| that the manufacturer wanted to save money by making use of an
| existing stock of 1N4004s. Maybe that's what happened in this case???

There is a way to wire them so as to equalize the current somewhat. Also, if
they only needed 1.1 A say, the design might get by.

N