Recent content by Sam_sky

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    Boss Me 25 guitar processor given 8Khz noise

    Need some help on this.. on how to cut the noise please The Output from My Boss Me-25 guitar processor seems to send a high pitch sound around 8 Khz.. tried the following 1. Changed the power supply to different adaptor 2. Used only battery 3. Bypassed to the tuner mode (no effects etc.,) 4...
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    Guitar feedback issue at high frequencies - please help

    Thank you for your reply.. happy to follow any circuit that I can build One of the main challenge here in India.. these pedal cost even more.. all they might have is a op amp and 2 to resistors..  Kindly assist..! Sam Also will Cable Ferrites or ferrite bleed help?
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    Guitar feedback issue at high frequencies - please help

    I am currently using a Stratocaster Guitar to a Guitar processor to AMP (or direct PA)..  I am getting a high frequency feedback - kindly see the attached picture.. Only when I use the acoustic guitar patch ...(for other patch I might not hear it - but its not a patch issue)..  - I tried...
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    Desperate Help Needed

    Awesome..
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    Desperate Help Needed

    Thank you... Yes - I tried bypassing and it sound fine.. (Think the preamp is messed up - might put a switch to alternate between preamp and direct in power amp in) Because the overdrive sound from preamp is nice to hear (Unsure if the preamp blow out soon)..  ------------------- :) Audio...
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    Desperate Help Needed

    Actually I tried the a Cell phone headphones out thro this at very low volume .. still the same.. I will connect directly and update you and check the result.. Only concern I have is - because of this distortion, is it bad for the speaker or the AMP..? * without the preamp see if this occurs..
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    Desperate Help Needed

    My bad it was LA4508..  I managed to sort out the issue.. but there are other problems which I would tell below.. Basically the power Amp seems to power up two channels separately - Right and left and it works fine.  Isolated the issue onto the preamp.. but it proved to a issue with the input...
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    Desperate Help Needed

    Hi, I have a very old Amplifier (Stereo) powered by two LA4058 IC's as per the spec - it says it is a 100W Amp - has a circuit more or less like this http://fixmag.ru/download/1259351172_sp-011.pdf Refer Page number 5 for the circuit but the difference in my circuit is that - it uses the...
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