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PMT Treble Bleed

Discussion in 'Tech-Talk' started by Class A Knob, Jul 11, 2019.

  1. Class A Knob

    Class A Knob Senior Stratmaster

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  2. Believer7713

    Believer7713 Most Honored Senior Member Silver Member

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  3. Stephen James

    Stephen James Strat-Talk Member Vendor Member

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    +1 on the PMT Dual Mode Tone control (guitarelectronics.com)..

    I have the treble bleed as well and it works fine, it was installed and then uninstalled in favor of the DMT because I find I prefer the real-time control I get from the DMT push-pull.. I just wish the DMT came in more pot values (like 50k for actives)..
     
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  4. Believer7713

    Believer7713 Most Honored Senior Member Silver Member

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    You just gave me an idea. I have a DMT in a drawer in my shop now. I may take the board off of it and put it on a 25K push/pull. Could be a fun mod.

    Sent from my SM-G975U using Tapatalk
     
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  5. Class A Knob

    Class A Knob Senior Stratmaster

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    Thanks for the insight. What I like about the PMT is the set & forget aspect. It's going on a guitar with minimal controls & hardware (1 pickup, 1 vol., 1 tone).
     
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  6. Believer7713

    Believer7713 Most Honored Senior Member Silver Member

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    Something else about this that I would probably change would be to pull off the trim pot and wire a pot on that I could control from the outside since I may want one setting for one song and something else for another...I like options.

    Sent from my SM-G975U using Tapatalk
     
  7. Class A Knob

    Class A Knob Senior Stratmaster

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    You should do mods like JHS does to Boss pedals...great idea. Drill another hole for a CTS pot that would essentially be a secondary tone control. If you really want to mix it up make a 2-position toggle switch that would select either 0.022 or 0.047 caps. I'm not electrically inclined...that's for smart people...so I should stop typing. Me like working wood.
     
  8. Angel S Bunny

    Angel S Bunny Strat-Talk Member

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    anyone got any of these boards to get a Photo of them..
    https://pmtmusic.com/dual-mode-tone-control
    sadly i can only see that this has 4 caps and 2 Slide switches
    would like to know the values of the BLUE CAPS and Pot

    Depending on the Values and what links up to want could make a Version that just needs a little Twiddle Stick (2mm hole in the Guitar near the POT)
    and let you change a bit more easier than a Switch inside the guitar (ONE HIT ONLY)
    imageedit_3_8381476506.png
     
  9. Angel S Bunny

    Angel S Bunny Strat-Talk Member

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    imageedit_5_8107599128.png
    >HOPE I've Drawn it out right!<
    Link a Tone pot but with 2n2F -12n2F
    and bass Tone pot (like G&L have) Pot with 1-3n2F cap
     
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  10. Angel S Bunny

    Angel S Bunny Strat-Talk Member

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    Had to add a LINK from the SWITCH as i fear of FEEDBACK

    imageedit_9_8402757581.png
    Based on the circuit (someone kindly sent me)

    6 Capacitors but gives you 4 Combinations Per Low/High Filter
    DUAL POT (in the same case, one arm to change both pots)
    Hexadecimal Switch(Suggest small HOLE in the Pick guard and twiddle stick)

    the one i made before was designed on HIGH/LOW Filters
    IN-Cap-RES(GROUND)-OUT and IN-RES-CAP(GROUND)-OUT
     
    Last edited: Jul 14, 2019
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  11. Angel S Bunny

    Angel S Bunny Strat-Talk Member

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    1M5 Resisters and unknow Cap value and a TrimPot Guess 504 (500K)
    Now if we can find the other values and circuit, maybe make your own version
    G&L did use 200pF as a Bleed, and 1nF is said to be good around 10-8 maybe 7-6
    Can make it so it changes value as you turn the volume down
     
    Last edited: Jul 14, 2019
  12. Stephen James

    Stephen James Strat-Talk Member Vendor Member

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    Here are some pics, of the one I have mostly apart (push-pull knob failed on that one, pulling up didn't activate the switch):

    [​IMG]

    [​IMG]
     
  13. Stephen James

    Stephen James Strat-Talk Member Vendor Member

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    In the bottom pic the caps are:

    {222(0.0022uF)} {102(0.0010uF)}

    {103(0.0100uF)} {222(0.0022uF)}

    The pot is a 500k push-pull..
     
  14. Believer7713

    Believer7713 Most Honored Senior Member Silver Member

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    Give me a bit and i can get a copy of the instructions too. They explain what the switches do.

    Sent from my SM-G975U using Tapatalk
     
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  15. Stephen James

    Stephen James Strat-Talk Member Vendor Member

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    As you can see from the pics I posted, the traces are pretty fragile, I would be prepared for at least one trace to try to lift.. It would almost be better to spec the parts and build a separate one..
     
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  16. Believer7713

    Believer7713 Most Honored Senior Member Silver Member

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    I might. I don't know if I will even try it, THO, for an active setup. Who knows though, I do like a challenge. Plus I may get curious as to what EMG's sound like with the bass cut out.
    Really, I was just thinking about something to mod and I have a pretty good track record with a soldering/desoldering station. Either way it could be fun.

    Sent from my SM-G975U using Tapatalk
     
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