Lyle Caldwell mods for AC30C2?

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by Outlier52, Jun 12, 2016.

  1. Gene02

    Gene02 Member

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    Sep 11, 2016
    At the shop for the install.
    8 Sozo Caps
    1 Riken Ohm 182k 1w 1% carbon film in R12 Resistor changed from a 100k metal film changing to a 220k would add to much gain so i'm installing the Riken Ohm 182k to reduce the gain.
    1 Amtrans Amrg 220k 2w 1% 500v carbon film in R14 Resistor changed from a 220k metal film
    1 100pf Silver Mica 1% 500v Cap changed from 120pf
    1 47pf Silver Mica 5% 500v Cap changed from 56pf
    This is the final set up for my Vox AC 30C2X
     
    Last edited: May 26, 2017
  2. Gene02

    Gene02 Member

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    Sep 11, 2016
    Well the amp is done. the amp sounds great even the tech said what a different. so he did do 1 cap removal this is what he installed.
    8 Sozo caps C7, C38, C28, C45, C48, C51, C50, C80
    removed C18 cap Top Boost Cathode Bypass like the Edge Amp.
    1 Riken Ohm 182k 1w 1% carbon film R12
    1 Amtrans Amrg 220k .75w 1% carbon film R14 had the 2w Amtrans did not install
    1 Silver Mica 47pf 5% 500v C23
    1 Silver Mica 100pf 1% 500v C8
    well I can tell you guys this amp sounds great with these resistors and caps. I new I was right.
    what TMcB said was right on but I used Sozo cap and above resistors
     
    Last edited: Jun 4, 2017
  3. jay42

    jay42 Member

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    Did you replace the output transformer with an Albion/Woden/Haddon clone from MM or whoever? That's the last bit depending on what you're looking to reproduce. fwiw, I've looked hard at the pricing Caldwell shows and it's quite fair. Shipping is the meh today.
     
  4. Gene02

    Gene02 Member

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    Sep 11, 2016
    I use the Mercury Power and Output Transformers with Weber Speakers
    install cost for cap and resistor 150.00 I give him the parts
    Pat at Mercury told me to use the VXO 30H output and VXP 30 power transformers in the Vox ac30c2x
     
    Last edited: Jun 5, 2017
  5. Coldacre

    Coldacre Supporting Member

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    can you confirm that the C48 cap is in fact a Top Boost Cathode bypass that goes in place of the C18?
     

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