Darkvoice and Crack Mods

Discussion in 'Modifications and Tweaks' started by rtaylor76, Jan 4, 2018.

  1. Pingu

    Pingu Rando

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    Thanks I’ve ordered led’s and a few other bits too. I’ve removed the pre output cable but left the resistors and capacitors in place. Unfortunately the left channel cracks with blue flashes in the 6AS 7 valve and goes down atm. I switch off and back on after a minute and fiddle with the 6AS7 get a few more cracks sometimes then it’s back up. So maybe the electro capacitors I hope or maybe the valove.
     
  2. Pingu

    Pingu Rando

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    So now have disconnected pre amp and resoldered all the joints. Used a new pot 50k stepped attenuator cheapo on fleebay in shunt format. Big improvement both in SQ and volume control, now works from about 9oclock around to 5oclock. Have also changed the 6SA7 valve and now both channels ok with no cracks or drop out so all good. Not done the led mod yet as there is no hum.
    One draw back is however when I use a new Tung Sol in place of the 6SN7 with anew one ordered at the same time I get a loud constant volume motor boating sound. Nothing with the original Tung valve
     
  3. Saulb

    Saulb Rando

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    Just a pick of my DV. for fun. Sounds fantastic Has being a fun journey. Amazing detail and soundstage. Will keep posting any other mods. Maybe volume pot on the cards and additional inputs with switching.


    [​IMG]
     
    Last edited: Nov 16, 2019

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