tube amplifier music angel xd 845 lighting problem
dear ching,i have recently bought a 2nd hand music angel 2 large tube 4 small tube amplifier
when i turn it on, only the 2 tube on the back lights up but no the fron 4 small tube
is it normal?
or is it all tubes will be lighten up?
thanks 2支大, 4支細?{:6_141:}
甘又有無聲出?因為後面大的功率管,前面的可以係訊號管,或者當中有一支係整流管 加三支訊號管 .
訊號管的發熱絲細, 但細心D睇應可以望到入面紅左表示有著.
而不同的細管各有不同腳做供電和輸出位置, 基本上是不可以亂插.
thanks ching, very useful, i found the 4 small tube actually lights up
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