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  • Profile picture of mike

    mike became a registered member 9 hours, 20 minutes ago

    mike

    @mica

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  • Profile picture of mike

    mike became a registered member 9 hours, 20 minutes ago

    mike

    @mica

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  • Profile picture of Mark

    Mark replied to the topic Voltages too high in the forum 2 Stroke Amplifier Design and Building 1 month, 2 weeks ago

    Hi Brian.  I don’t recall.  I haven’t touch the amp in years.  I’ld have to get it back on the bench to find out.  All I know is it’s working fine, though the overdrive isn’t as saturated and smooth as I would like.  My bench is in total disarray right now, so I’m not sure when I’ll be able to get it back on the bench to test it.

  • Profile picture of Brian

    Brian replied to the topic Voltages too high in the forum 2 Stroke Amplifier Design and Building 1 month, 2 weeks ago

    Hey Mark…. Did you ever figure this out? I’ve got the exact same issue going on with deluxe reverb reissue. Except on the rectifier I’m getting more like 7v on P2 and like 1v on P8. And my DC on P8 is even higher than yours.

    I’m wanting to think that it’s an issue with xfmr yellow wires but I don’t understand how it can raise the DC voltage so…[Read more]

  • Profile picture of Brian

    Brian became a registered member 1 month, 2 weeks ago

    Brian

    @f100

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  • Profile picture of Robin

    Robin replied to the topic Does 290AX need an artificial center tap? in the forum 2 Stroke Amplifier Design and Building 2 months, 3 weeks ago

    You can use the 6.3v center tap (green & yellow) to ground OR the 2-100 ohm resistors as an artificial center tap, but not both.   Good luck, enjoy.

  • Profile picture of Joe

    Joe became a registered member 3 months, 1 week ago

    Joe

    @ribbler

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  • Profile picture of type_o_neg

    type_o_neg became a registered member 4 months, 1 week ago

    type_o_neg

    @type_o_neg

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  • Profile picture of Bruce

    Bruce became a registered member 5 months, 3 weeks ago

    Bruce

    @bnbrown

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  • Profile picture of Paul

    Paul became a registered member 5 months, 4 weeks ago

    Paul

    @moapys

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  • Profile picture of Robert

    Robert became a registered member 6 months ago

    Robert

    @rojobou

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  • Profile picture of billy_lamb

    billy_lamb became a registered member 6 months, 1 week ago

    billy_lamb

    @billy_lamb

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  • Profile picture of Andy

    Andy replied to the topic Hardware in the forum Amplifier Design and Construction 7 months, 1 week ago

    There isnt a list of hardware yet, but I plan a build in the next couple of weeks with my son so I can document it. Most folks use the Unibit or a stepped bit to drill the hole for the Impedance Switch in the back. You can do the same for the second 1/4″ jack if you want, but I tend to leave just the one and then wire the speakers to each other…[Read more]

  • Profile picture of Greg Begin

    Greg Begin became a registered member 7 months, 1 week ago

    Greg Begin

    @gregbeginsbcglobal-net

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  • Profile picture of Wm

    Wm started the topic Hardware in the forum Amplifier Design and Construction 7 months, 2 weeks ago

    Is there a list of the hardware needed to complete this project.  I only got as far as the mounting bolts for the circuit board. I’d like to go to a hardware store and pick up everything I need. Also I’d like to find  more detail about drilling the extra holes in the chasses and where to mount the output transformer.

  • Profile picture of Donna94203

    Donna94203 became a registered member 10 months, 2 weeks ago

    Donna94203

    @donnahsiao

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  • Profile picture of David

    David became a registered member 1 year ago

    David

    @dlong

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  • Profile picture of Wes

    Wes became a registered member 1 year, 1 month ago

    Wes

    @unreconstructed

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  • Profile picture of Reid

    Reid became a registered member 1 year, 2 months ago

    Reid

    @felixthecat64

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  • Profile picture of Charl

    Charl replied to the topic Does 290AX need an artificial center tap? in the forum 2 Stroke Amplifier Design and Building 1 year, 2 months ago

    Great!  Thanks!

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