Home › Forums › Help/Technical Questions › Whistling noise when using 1 Spot to power my Lester G.

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  • January 4, 2017 at 1:18 am #84723
    msmith40
    Member

    I use the Truetone 1 Spot to pedal my FX.
    I notice a high-pitched ‘whistling’ when I connect it to the Lester G.
    The whistling is present even when the Lester G is ‘off’.
    The whistling is more noticeable when I actually engage the Lester G.

    1 Spot specs:
    The 1 SPOT is the original 9V DC adapter has the ability to handle up to 1700mA, the 1 SPOT can power your entire pedalboard.

    Lester G: The LESTER G requires 100mA at 9VDC with a center-negative plug.

    (Lester G behaves quite nicely when using EH 9V adapter….no issues whatsoever.)

    Is it not compatible with the 1 Spot?

    Thanks!

    January 4, 2017 at 3:13 am #122467
    EHX STAFF
    Keymaster

    No, the one spot does not have isolated outs for all pedals and is the source of the noise.
    The fix is use our supply or you will need a Diago isolator adapter.
    Sorry the one spot is a cheap supply and causes noise with many companies pedals.
    We are working on adapting to this cheap unit but for now best bet is to use our supply or the adapter.

    January 4, 2017 at 3:30 am #122468
    msmith40
    Member

    “We are working on adapting to this cheap unit….”

    HAHAHAHA!!!

    I hear ya………thanks for the reply….and the laugh.

    msmith40

    January 4, 2017 at 4:30 am #122469
    EHX STAFF
    Keymaster

    Msmith Thanks
    We are working on it and I am sorry.
    Thanks for your understanding!
    In the mean time I will do a video showing the Diago adapter to kill the noise with non isolated supplies.
    Bill

    April 20, 2019 at 12:11 am #125123
    Dendog
    Member

    Can the Lester k be powered by the voodoo power two plus?

    April 20, 2019 at 1:12 am #125124
    EHX STAFF
    Keymaster

    Sorry I am not familiar with that supply.
    the techs may know at:
    info@ehx.com

    Or the people that make the supply.
    The Lester needs 9 volts/200ma and plug is center negative.

    October 26, 2021 at 6:17 pm #186153
    revgsmall
    Participant

    Just got my Lester K and have been using the One Spot but I have the same whistle noise. I would love to have just one power supply as this is my set up fast, play and get the hell out of the way pedal board. Any suggestions?

    October 26, 2021 at 6:24 pm #186154
    revgsmall
    Participant

    Forgot to mention that the Diago is not available, at least on Reverb.

    October 28, 2021 at 2:01 pm #186162
    EHX STAFF
    Keymaster

    You need to use a power supply with isolated outputs or use the EHX supply.These cheaper supply’s are not isolated and cause noise.

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