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CD-ROM 2*


VERSATILE POWER AMP:-
*OR BEAT THE POSTMEN! THESE FILES EMAILED DIRECT TO YOU INBOX,
ONLY £4.50



THIS WAS MY VERY FIRST PUBLISHED ARTICLE. IT APPEARED IN THE LATE LAMENTED   'RADIO CONSTRUCTOR' MAGAZINE IN THE MID 70's. I MOSTLY REMEMBER WHAT A THRILL IT WAS TO SEE MY BRAINCHILD   IN PRINT, AND BETTER, BEING PAID FOR IT! THE DESIGN IS AS SIMPLE AS I COULD MAKE IT.I ALWAYS FOUND    PAYING GOOD MONEY FOR COMPONENTS A BIND SO I ALWAYS TRY TO DESIGN WITH AS FEW PARTS AS POSSIBLE.AND FOR AS LITTLE AS POSSIBLE. TIME HAS TAKEN OVER ON THE COMPONENT FRONT BUT IN THE UPDATE SECTION I SHOW HOW YOU CAN STILL BUILD IT WITH MORE MODERN COMPONENTS WITH CORRESPONDINGLY BETTER PERFORMANCE.

BRIDGE AUDIO AMP

THIS ARTICLE COMES  FROM MUCH  LATER   IN MY CAREER  AND  APPEARED  IN EE MAGAZINE. HERE MY ALTER EGO, PAUL HENDERSON,  SHOWS HOW TO MAKE A SIMPLE  CHEAP   AUDIO AMP  WITH HIGH  OUTPUT  POWER   AND LOW COMPONENT COST( HE MUST HAVE READ THE VERSATILE POWER AMP ARTICLE )    NO PROBLEMS   WITH COMPONENTS HERE THEY'RE ALL EASILY AVAILABLE FROM YOUR LOCAL VENDOR.NO UPGRADES EITHER THE DESIGN IS AS PERFECT AS IT'S GOING TO GET!

LOUDSPEAKER DAMPING

HERE IS AN ARTICLE FROM ETI ON A DIFFERENT SUBJECT.iF YOU FIND SPEAKER DESIGN INFINITELY BAFFLEING THIS SHOULD HELP CLEAR UP SOME OF THE MYSTERIES OF THE SEALED BOX.
 
 

WHO SAID THE VALVE WAS DEAD?

FINALLY THIS PROJECT APPEARED IN 'PRACTICAL ELECTRONICS' IN 1991 AND WAS AN ATTEMPT TO MAKE AN AMP WITH THE SONIC QUALITIES OF  VALVES AND THE POWER HANDLING OF A TRANSISTOR AMP. THIS DESIGN WAS MADE ALL OVER THE WORLD. IN FACT I STILL GET CORRESPONDENCE ABOUT IT. AGAIN SOME OF THE PARTS ARE NEAR OBSOLETE BUT MODERN ALTERNATIVES ARE AVAILABLE.