Beiträge von Civil

  • Clean channel of A15mk1(PROBLEM)

    Hi!

    I have no sound on my clean channel of A15mk1.. :(
    ..Second channel works perfectly
    These voltages are wrong:

    pin 1 of V1 and between R9 i have 230v, correct is (154v)
    between R8 and R10=252V (237V)
    between R12 and R11=51,2V (117V)
    pin 1 of V4 and between R39=247V (171V)
    pin 6 of V4 and between R38=153V (181V)
    Between R42 and pin 3 of V4=10V (16V)
    between R40 and R41 11V (14,8V)
    between R43 and R44 2V (2,6V)

    If somebody with more experience than me, could help me i would be really grateful!
    I can also post pictures from tose tricky places..

    Thanks!

  • No sound (a15mk1)

    Re: No sound (a15mk1)

    I had forgot to solder one ground wire, and that´s why there was no sound!
    problem solved.. :)
    ..My clean channel doesn´t work though
    There is probably some aberration or wrong thing in a wrong place..
    I´ll check it tomorrow..
    2nd channel works perfectly! ..nice sound ;D

  • No sound (a15mk1)

    Re: No sound (a15mk1)

    Hi,

    I used my 2x12" celestion speaker cabinet, but there ain´t no sound.. or even that slight hum or noise. It´s dead silence
    ..My friend who is a expert on electricity is coming tonight to see if we could solve the problem..
    I have tried to measure all the voltages, but im so noob that i can´t trust on them.. Im pretty shure that i have done some silly aberration, which i can´t find myself.

    If somebody figures out something that could help me please tell me.. :)
    thanks for all of the replys!

  • No sound (a15mk1)

    Hi!

    When i turn my a15mk1 kit on, it doesn´t make any sound
    i have a 16 Ohm speaker connected, and the tubes glow just fine
    ..Where i should start to find the problem? And what is propably soldered wrong?
    Every help is welcome!