Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Topic started by: ssssly on January 31, 2010, 12:56:31 AM

Title: PT-2 diode bridge question
Post by: ssssly on January 31, 2010, 12:56:31 AM

Is the diode bridge for the PT-2 the same as for the Hammond that came with the Paramour 1?

Looking to get some Schottky diodes for the P1 new project and don't but the wrong thing?

Title: Re: PT-2 diode bridge question
Post by: Paul Joppa on January 31, 2010, 11:03:42 AM

No, they are different.

The Hammond was a conventional tube circuit with center-tapped HV winding. It used two diodes rated 1000 volts. The PT-2 is a single winding and needs a full-wave bridge rectifier of four diodes, rated 500v minimum.  If you have the PT-2 and are embarking on a rebuild, the 600v Schottky diodes are suitable; for the Hammond you need the 1200v ones which are more expensive.