Name:    Terry
Email:   musicmanamp@yahoo.com  
Subject: 210/65 valves
Thread:  190
Time:    Tue, 16 Oct 2001 07:33:52 UTC

YOUR 2475-65 EX. THE EX STANDS FOR EXPORT. SO YOUR CHASSIS WAS AN EXPORT. IT IS ACTUALLY A 75 WATT HD-CHASSIS. ON THE PLATE WHERE THE CHASSIS NUMBER IS, IT ALSO SAYS 220 V (VOLT) BY 50 HZ BY 9 AMP. AND THE PLATE SAYS 65 WATTS RMS. THE OUTPUT TRANSFORMER SHOULD SAY 5-75. THAT IS A 75 WATT OUTPUT TRANSFORMER. YOU SHOULD HAVE SOME BLACK TOGGLE SWITCHES. ONE IN THE FRONT FOR HIGH AND LOW POWER. AND ONE IN THE BACK FOR A POWER SWITCH. AND ONE FOR A STANDBY. THERE IS NO A/C OUTLET IN THE BACK OF THE CHASSIS UNLESS SOMEONE ELSE TOOK THE TIME AND CARE TO PUT IT IN THERE. THE DRIVER BOARD INSIDE WITH THE TWO BLACK RAILS WHERE THE DRIVER TRANSISTORS ARE LOCATED, SHOULD HAVE A STICKER SAYING 75. AND ON THE BIG CIRCUIT BOARD YOU SHOULD SEE A DATE WROTE IN BLACK MARKER. THAT IS WHEN THE CIRCUIT BOARD WAS MADE. ON TOP OF THE POWER TUBES, YOUR BIG RESISTOR SHOULD BE A 470 OHM...THIS IS A YELLOW/VIOLET/BROWN/SILVER STRIPED RESISTOR. THIS IS FOR 6L6 GC POWER TUBES. AND THAT IS ON PIN 6 AND 4 OF THE TUBE SOCKET. MOST OF THE EXPORTS CHASSIS THAT I HAVE COME WITH A PHASER. I KNOW WHEN MUSICMAN SOLD OFF THEIR AMPS, AT THE AUCTION, THEY DID HAVE SOME OF THESE CHASSIS FOR SALE. AND THE PERSON THAT I BOUGHT THE ONES THAT I HAVE FROM, TOLD ME THAT HE HAD CONVERTED SOME TO BE USED IN THE USA BY INSTALLING NEW POWER TRANSFORMERS... AND DOING SOME RE-WIRING.I would say some one put that chassis in a older cabinet that they had. Hope this helps you out. Terry.