Home Forums Help/Technical Questions MYSTERIOUS MINIMIZING MEMORY BOY DELAY TIME

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  • #79384
    Squigglefunk
    Member

    when I first got my memory boy, it seemed to have almost 650ms delay time, then around 450, then yesterday I checked it and it’s down to about 350 now? I did this by checking against my digital delay with MS readout. Any suggestions or other help?

    thanks

    #104209
    electro-melx
    Moderator

    robo is that you? :)

    #104210
    electro-melx
    Moderator

    anyway here’s what others have been saying in this thread here:

    https://www.ehx.com/forums/viewthread/1561/

    I found delay time seems to be dependent on power voltage.

    Lower the voltage, longer the delay time and make stretched-tape-echo-like lo-fi sound. It will go far beyond 550ms and, at max, delay sound can stop. Higer the voltage, clearer the sound and shorter the delay time.

    According to my measurement, at least 9.5v is needed for “proper” work.
    So if you use standard power supply which has around 9v, it won’t work correctly.
    I can get 9.78v with included power supply even from 100v outlet in Japan but it’s inconvenient not to be able to use standard 9v power supply.
    It’s EH’s fault, I think. At least, “work with 9v power supply” isn’t true.

    My Memory Boy is completely insane. I literally don’t know what it is going to each time I power it up. Yesterday, with the help of an expression pedal, I could get a maximum delay time of about two seconds. Today, no matter what I did I could only get a maximum of about .7 seconds. On a hunch I unplugged the adaptor and put in a 9 volt battery (a very tight squeeze!). Just now I had a full 4 seconds of (heavily ‘bitcrushed’) delay. I’m not complaining, by the way – I think that this pedal’s unpredictability could be a stroke of genius.[/quote]
    I made regulator circuit with LM317 IC by my self and got 9.7v from 18v output of my Gator power supply with no problem, but EH should improve this kind of instability.

    If it’s OK with your power supply, congratulation, you’re lucky! Keep using it. Some power supply has slightly higher voltage even if it’s labeled as 9V.
    My Gator power supply has 9.4v output from “9v out” but I felt it’s not enough because it sounded too lo-fi and max delay time was too long compared to with included power supply.
    I guess Memory Boy doesn’t have a function to regulate the power voltage, which other analog delays have. Anyway, it’s very sensitve to power voltage. Someone says delay time varys day by day, or club by club.

    #104211
    Squigglefunk
    Member

    sucks, it needs a regulator or something, thanks for the reply

    #104214
    electro-melx
    Moderator

    no worries.

    #104406
    companyman
    Participant

    Robo is now squigglefunk….

    #104511
    dmc777
    Member

    I hope this issue is fixed when the DMB comes out cause I’ve been passing up other delays waiting on it. I bought the regular MB when it first came out and wasn’t really too impressed with it but the added options of the deluxe make me want to check it out.

    #104553

    We are looking into the cause of the problem, there are a couple of things that might cause it.

    The DXMB (Deluxe Memory Boy) will definitely not have this problem.

    #104554
    Squigglefunk
    Member
    Quote:
    We are looking into the cause of the problem, there are a couple of things that might cause it.

    The DXMB (Deluxe Memory Boy) will definitely not have this problem.

    cool, thanks

    #104665
    Squigglefunk
    Member
    Quote:
    We are looking into the cause of the problem, there are a couple of things that might cause it.

    The DXMB (Deluxe Memory Boy) will definitely not have this problem.

    does this mean there might be refunds/repairs offered for the memory boy?

    #104819
    cavemanbaboon
    Participant

    Yes, please. Where could I get my memory boy repaired/ replaced? mine can’t run off a battery, nor the 9V supply I bought for it. There’s nothing said about this problem anywhere other than the forums.

    #105189
    Squigglefunk
    Member

    BUMP!

    #105195
    Fender&EHX4ever
    Moderator

    I live in Florida, and I’ve found my Memory Boy to be sensitive to temperature changes.

    The max delay time is longer when the temperature in my house is above about 70 degrees F.

    The max delay time decreases when it falls below 60 degrees F.

    This is really bizarre, but no more bizarre to me than how temperature affects Germanium transistors. I’m not too concerned about it. It beats having to change the tape loop.

    #105197
    Squigglefunk
    Member
    Quote:
    I live in Florida, and I’ve found my Memory Boy to be sensitive to temperature changes.

    The max delay time is longer when the temperature in my house is above about 70 degrees F.

    The max delay time decreases when it falls below 60 degrees F.

    This is really bizarre, but no more bizarre to me than how temperature affects Germanium transistors. I’m not too concerned about it. It beats having to change the tape loop.

    it’s not temperature changes, more likely fluctuations in your power grid.

    They have already stated it is a real problem, not imagined but apparently not offering a fix or anything

    #105211
    Fender&EHX4ever
    Moderator
    Quote:
    Quote:
    I live in Florida, and I’ve found my Memory Boy to be sensitive to temperature changes.

    The max delay time is longer when the temperature in my house is above about 70 degrees F.

    The max delay time decreases when it falls below 60 degrees F.

    This is really bizarre, but no more bizarre to me than how temperature affects Germanium transistors. I’m not too concerned about it. It beats having to change the tape loop.

    it’s not temperature changes, more likely fluctuations in your power grid.

    I’m not entirely convinced. The occurence has a happened a few times now, which seems too often to be a coincidence.

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