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PT-108 wiring

Discussion in 'Amps and Cabs [BG]' started by flant, Aug 2, 2009.

  1. Aug 2, 2009 #1
    flant

    flant

    Aug 2, 2009
    Can someone please send me the wiring diagram for putting my new 108 into my B 15nc. I took the old one out 15 years ago and have no clue where the 9 wires go. It would be a great help. I'm not a newbe, just don't remember.
    Thanks
    Phil A
    [email protected]
     
  2. Aug 2, 2009 #2
    Vintage-Blue

    Vintage-Blue Gold Supporting Member Commercial User

    Feb 13, 2008
    Cincinnati, OH
    Owner, Vintage Blue (repro cabinets)
    Is this what you are looking for:


    080209a.jpg


    or are you looking for something that shows inside the chassis where the leads connect?
     
  3. Aug 2, 2009 #3
    Vintage-Blue

    Vintage-Blue Gold Supporting Member Commercial User

    Feb 13, 2008
    Cincinnati, OH
    Owner, Vintage Blue (repro cabinets)
    Here's the inside of a B15NC of mine. I haven't done any work to it but I don't know if anything was ever changed by a previous owner:

    080209b.jpg

    Black - fuse
    Red/yellow - bottom of standby switch
    Black/white - bottom of ground switch
    Red - pins 4,6 of 5AR4 (V6)
    Yellow - pins 2,8 of 5AR4 (V6)
    Green - pin 7 of 6L6GC (V5)
    Green/white - pin 2 of 6L6GC (V5)

    Hope this helps!
     
  4. Aug 2, 2009 #4
    BassmanPaul

    BassmanPaul Inactive

    Aug 25, 2007
    Scarborough Ontario Canada
    Remember that you have to reform the capacitors in the amp. After fifteen years they are probably in poor condition. Ideally the AC voltage to the amp should be brought up slowly eventually allowing the rectifier to warm up and charge the caps.

    Paul