Re: enthusiams: linear motors, full bridge rectifiers

--- In CAD_CAM_EDM_DRO@egroups.com, jmw@c... wrote:

>
> 2) Again, sorry if this is old hat; it sure was new to me. Full
> bridge rectifier butter pat _600V_ and _40A_, 1" x 1" x 3/8" thick.
> $5.00, new/surplus, C&H Sales. The last time I played with

rectifiers

> (approx 30 years ago) they were big, painted orange and had fins

like

> motorcycle engines. (This unit does have a precision cast aluminum
> shell and a 1/8" hole thru the middle, maybe it'd like to be bolted
> to a heat sink?)
>
> --Jack

Wally K. replys;

The first rectifer you refered to orange with fins is a selenium
rectifier. They have fairly poor electrical characteristics and have
been obsolete for more than 25 to 35 years.

The second block type rectifier you refered to is in general use
today and yes it is made to mount to a heat sink.