REGARDING A NEWLY ACQUIRED 6 METER
AMP THAT COVERS 1.8 TO 53 MHZ BUT IS NOT WORKING TO IT'S FULLEST
EXTENT. I HAVE SOME KNOWLEDGE BUT AM STILL A AMATUER. IT WAS TAKEN TO A HAM
REPAIR SHOP AND THE TECH WAS ABLE TO TELL ME THAT THE PROBLEM WAS
PROBABLY IN THE TANK PORTION OF THIS AMPLIFIER BUT COULDN'T TELL WHAT EXACTLY
WAS WRONG BECAUSE OF THE LACK OF SCHEMATICS. IT IS A VERY SIMPLE AMPLIFIER
USING 2 3-500Z'S. IT ONLY PUTS OUT 400 WATTS PEP AND FROM WHAT OTHERS TELL ME
IT SHOULD PRODUCE 1200-1500 WATTS PEP WITH APPROXIMATELY 100-150 WATTS OF
DRIVE. IM NOT SURE IF IT IS A NORMAL CONDITION BUT IT ARC'S ACROSS THE TUNING
CAPS WHEN UNKEYED LIKE STORED VOLTAGE. I CAN'T SEE THE COLORS OR THE RESISTORS
THAT GO TO THE TOP OF THE TUBES I WAS JUST GOING TO START REPLACING THINGS BUT
FIGURED THAT IF SOMEONE MIGHT BE ABLE TO LEAD ME IN THE RIGHT DIRECTION IT
WOULD MAKE THINGS A LOT LESS TIME CONSUMING. THE TECH DID TEST THE TUBE'S THEY
TESTED AT 90-95%. ALTHOUGH I DID HAVE ANOTHER BRAND NEW SET I STUCK IN JUST IN
CASE AND STILL THE SAME. I DO PLAN ON RE-WIRING IT AS SOON AS I CAN BECAUSE
SOME OF THE SOLDER JOINTS LOOKS PRETTY BAD. IT HAS TWO TRANSFORMERS AND IM
THINKING THAT ITS A GOOD POSSIBILITY THAT ONE IS GOING BAD AND TH
AT
VOLTAGE SUPPLY IS AN ISSUE. ONE SUPPLIESW VOLTAGE TO THE TOP OF THE TUBES AND
THE OTHER SUPPLIES VOLTAGE TO THE BOTTOM OF THE TUBES. THREE OF THE TUBES ARE
SHORTED TO CHASSIS GROUND. IT ALSO HAS A BANDCOIL AND NOT A SWITCH TO GO FROM
6, 10, 12, 15, 20, 40, 80 METERS SO YOU CAN REALLY
FINE TUNE. IF YOU COULD HELP I WOULD BE VERY GREATFUL. I ALSO UNDERSTAND
THAT THEY ARE VERY DANGEROUS TO WORK ON IF NOT EXPERIENCED. I KNOW
BETTER THAN TO STICK MY FINGERS IN UNLESS IT IS DISCHARGED. IF YOU COULD
GIVE ME A REFERENCE VOLTAGE AT A COUPLE OF PLACES I COULD CHECK THE
VOLTAGES AND REFER BACK TO YOU FOR FURTHER ASSISTANCE. OR I COULD TAKE
PICTURES AND POST THEM WITH AN E-MAIL SO YOU COULD SEE THE DESIGN. OR IF YOU
CAN'T HELP ME MAYBE YOU CAN REFER ME TO A REPAIR SHOP THAT CAN
DEFINATELY FIX THE THING. DUE TO IT'S WEIGHT I'D RATHER NOT SHIP IT THOUGH.
ANY HELP WOULD BE GREATLY APPRECIATED. KG6NLB@YAHOO.COM JAMES SMITH @
209-329-3826 YOU MAY CALL IF IT WILL BE EASIER OVER THE PHONE ALSO.
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