Recent content by ecc83

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    Can I stand on a piece of metal to ground myself instead of buying a hum eliminator?

    EDIT: "Ever wonder why an acoustic guitar with a piezo saddle pickup doesn't hum?" Ooo! I know sir! I know! It's because piezo devices are essentially capacitors and thus do not respond to electro-MAGNETIC radiation, transformers and stuff. They are sensitive to electro-STATIC fields but these...
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    New Members: Introduce Yourself Here!

    Hi there and welcome. I'm Dave can I call you Bob? I am no musician but a retired electronics tech. My son lives in France and IS a very good muso, mainly guitar and bass but pretty good on keys, clarinet,brass. Top bllks on music theory and reads well. New computer? Pretty easy these...
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    Can I stand on a piece of metal to ground myself instead of buying a hum eliminator?

    I found a mobile phone within 1m of an all valve 30W combo caused "twittering" but at a level way below the actual guitar sound. Triodes have a natural RFI filter in their grid circuit formed by the grid stopper resistor* and the input capacitance of the valve. Bipolar transistors, ICs and...
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    Do they make such a cable ??

    Good call and Jim also said "....can't have enough patch leads" A wise observation and if his pile grows it might be worth investing in a multi-way cable tester? Far easier to use than a meter and can test for intermittent connections...you wiggle it a bit. "Funny" story. I have an...
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    Can I stand on a piece of metal to ground myself instead of buying a hum eliminator?

    Rare to find instrument, high Z inputs on older mixers and I would bet they use a FET to get that high input impedance. FETs have an even wider bandwidth than bipolar transistors. You can use the humble AUDIO 2n3819 as a band ll FM radio preamp! Dave.
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    Can I stand on a piece of metal to ground myself instead of buying a hum eliminator?

    Hmm, it is not reckoned to be good practice to plug guitars into mixer line inputs because of the very low (for guitar) input impedance, not that I think it matters much for bass? I can only surmise that because of the relatively high source impedance of the bass, 10k min I would say, that is...
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    Can I stand on a piece of metal to ground myself instead of buying a hum eliminator?

    Rich, what is the mixer and was the bass TRULY direct? No pedal first? I ask because RFI usually gets in a first stage transistor or IC. If the mixer is not picking up AM from any other source I suspect there is some sort of active device twixt bass and mixer. It could, as you say simply be...
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    Do they make such a cable ??

    Jim...Mate! Please don't let Ascat's little outburst put you off the forum. People often post in a bit of a strop when in fact they REALLY don't mean to be rude...done it meself. This forum (and two others I infest*) are veritable MODELS of good manners and calm advice 99.9% of the time but we...
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    Do they make such a cable ??

    Fair enough Rich. I guess this grumpy old bugger was just put off by their over-busy website. I don't WANT to setup a friggin' account with every sodding company I seek information from! I get enough 'king spam as it is! My hard earned will go to sites which are "quiet", calm, easy to navigate...
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    Going with the Flow……..8 Berhinger Flow8 that is

    Hmm? My son plays bass in a band in France and they have two mixers. A cheap jobby that I sent him, it works but I was very disappointed with it. They have a bigger analogue mixer but I think they are running tight on inputs. I might get a flow 8 and they can 'slave' it to the biggy. Well...
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    Noise from audio output of computer to mixer

    I am not in the least surprised that it worked and had I spotted your post earlier this is just what I would have suggested. FYI the noise is called "ground loop zipper noise" and is usually caused by a laptop being earthed via its charger (did you try it on battery?) and connected to a grounded...
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    Do they make such a cable ??

    " You could probably make one in 2 minutes from a pair of broken headphones" Possibly not S because a lot of headphone cables use 'tinsel wire' which is Aluminium and impossible to solder. But, FFS! A stereo 3.5mm plug and two TS or TRS 1/4" plugs? There are not that many permutations and...
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    Do they make such a cable ??

    Checked their website yesterday..."splashy" super busy site and not straightforward to navigate so I blew them out. Proper, "professional" suppliers make their websites clear and simple and quick to know. I also suspect they claim their cables "sound better" than the competition which is Russ...
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    Going with the Flow……..8 Berhinger Flow8 that is

    I was interested so I looked up its specifications and was rather disappointed? Max output +14dBu, a good 8-10dB below almost all other mixers including Behringer's own. The mic noise EIN is given as -117dB weighted! Most mixers/AI do better than -127dB. I guess if you have monitors or PA...
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    Do they make such a cable ??

    Yes, as far as I understand things, that^ is what OP needs. A stereo splitter. Personally I would chop the single TRS plug off and replace it with a 3.5mm TRS plug? The weight of adapter,cable and plug can bugger a TRS socket....feeble fekkers at the best of times! But I hope his eyes are a LOT...
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