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Thread: Volume Limiting - Is a 10 watt 47ohm resistor OK?

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    Blind Shooter Solidstate's Avatar
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    Default Volume Limiting - Is a 10 watt 47ohm resistor OK?

    First post.

    I've just ordered my first Pachislo (Beast Sapp) from an Ebayer here in the UK.

    In the interests of marriage harmony I've already been out to get some resistors to reduce the volume. The nearest ones to the recommended 10w 50ohm I can get hold of are 10w 47ohm. Will these do the job?

    By the way, thanks to everyone for the excellent forum and tips - I've wanted a fruit machine since I was 4 or 5 and now 30 years later I'm finally getting one.

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    Eye Shooter cmk8895's Avatar
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    Default Re: Volume Limiting - Is a 10 watt 47ohm resistor OK?

    Well, that kinda depends on what exactly you're going to do with it. Are you thinking a single resistor in series with the speaker or are you going to use several of them to build some sort of resistor network?

    cmk
    7 Pachislos, 1 vintage Pachinko; ask about 'em.

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    Pachi Puro logicprobe's Avatar
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    Default Re: Volume Limiting - Is a 10 watt 47ohm resistor OK?

    Welcome to the fourm, solidstate.

    47 ohm is certainly close enough to 50 ohm, and you should have no problems. I use that mod on my Beast Sapp, and it's been playing fine for months now. The internal volume switch then allows a decent range of control, IMHO.

    For reference, here's the link to the Tips and Tricks post about volume control.
    Good luck, and let us know how it goes.
    logicprobe
    Retired - Living on a Wing and a prayer!

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    Blind Shooter Solidstate's Avatar
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    Default Re: Volume Limiting - Is a 10 watt 47ohm resistor OK?

    Thanks for the advice. The resistors are going between the speakers and the amp as mentioned in the Tips and Tricks post. From reading that it appears that it doesn't matter which of the two speaker wires I insert the resistor in (and what way round the resistor goes) - trust I'm right with this.
    Incidentally how many speakers are there in a Beast Sapp and are they easy to get to?

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    Pachi Puro logicprobe's Avatar
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    Default Re: Volume Limiting - Is a 10 watt 47ohm resistor OK?

    There are two speakers in the Beast.
    I found a good spot to cut the wires located near the center of the door when it's open... just to the right of the coin mech, and below the button board.
    Trace the wires back from the speakers, and you'll find both sets running right along that path together.
    No need to open the speaker covers.
    logicprobe
    Retired - Living on a Wing and a prayer!

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    Pachi Puro logicprobe's Avatar
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    Default Re: Volume Limiting - Is a 10 watt 47ohm resistor OK?

    BTW, you are correct in assuming that either wire from the speaker can be used, and that it doesn't matter how the resistor is oriented. They are non-polarized components.
    logicprobe
    Retired - Living on a Wing and a prayer!

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    Blind Shooter Solidstate's Avatar
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    Default Re: Volume Limiting - Is a 10 watt 47ohm resistor OK?

    Thanks for your replies. I don't get service this good in a shop!
    I can't wait to get the machine now and I now don't have any worries about doing the mod myself.

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