Bully

Thanks for the reply. MJ and MJL are currently available at around R35.00 That transformer can be substituted with an isolation type ( very large ). The constructor probably fitted thermal cut out switches direct to the heatsink because yes that is very hard work to get rid of that much heat and quite a strenous task for those transisors working into a 2 ohm load :o I think im gonna skip this one

Has anyone attempted this project and how succesfull?