help me with valve inside RH150G3

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frankyex

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Jan 12, 2007
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hello.
i live in United Kingdom.one week ago i bought in one Ebay shop NEW amp Randall RH150G3WC from Austria for 300 UK pounds + 25 postage.today amp arrived but when i switch this amp on.....silent.panel working,all leds lights,but not sound...
i try check valve inside-12at7eh-and one pin is black and when is the amp on...no light from top on this valve.....
here is question:this power section from this amp need this walve or working without it and valve only make better sound?when dont need...amp is broken and when need for running poweramp....i try change only valve and maybe all ok.
because when i must send this amp for repair under warranty....must pay again postage 25 from uk to austria and after again.
change valve is more cheap for me...or when it blown....burn more parts inside?

info:i try the amp with 300w/8ohms marshall cab + monster speaker cable....
 
hi.today i arriwed new valve...try change...still same...is inside fuse for poweramp?because preamp working...i try heads line out with another poweramp and sound is good....
 
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