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Thread: 0.25 watt PP amp

  1. #1
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    Default 0.25 watt PP amp

    Well not sure if this should be posted here or with the pedals but this is a low watt push pull amp I have running and am tweaking. I attached some pictures of the little guy next to my coffee mug.

    PS Just to add the final amp will have a three position gain switch, gain control, tone control, volume control, speaker out and line out. Inside will be a built in speaker load so the amp can be used with just the line out for an overdrive box. An external in/out footswitch box will need to be used if you need to switch between overdrive and clean but that will keep you from stepping on the amp.
    Last edited by jim p; May 29th, 2010 at 12:02 PM.

  2. #2
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    Default

    Quote Originally Posted by jim p
    Well not sure if this should be posted here or with the pedals but this is a low watt push pull amp I have running and am tweaking. I attached some pictures of the little guy next to my coffee mug.
    That's awesome! Post samples when it's done .
    I see you're using WIMA metal film caps, excellent choice.

  3. #3
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    Default Sound clip of the amp

    Here is a sound clip of the amp played through a Weber Signature AlNiCo 8 inch speaker. The preamp tube is a 6112 the output tube a 6111 output transformer is a Triad 230 VAC / 6.3 VAC power supply transformer. Maximum Watts out of the amplifier is 0.25 Watts.

  4. #4
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    Default finished amp

    Here are some pictures of the amp

  5. #5
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    Sounds great, Jim! Very cool amp. Congratulations.
    Guitars: Charvel/Jackson CSM-1G, DeArmond M-75, DeArmond Starfire Special, DeArmond S-73, Epiphone Collegiate UK, Squier 51, Michael Kelly Patriot Custom, Harmony Sovereign, Taylor 310, Takamine 12 string, SX thinline, Fender MIM Strat, Ibanez JTK30,
    Amps: Earth Sound Research G-2000 Super Guitar head into Avatar G212H cab, Fender Sidekick 20 Chorus, Peavey Classic 20, Peavey Classic 30, Peavey Express 112, Fender Super Champ XD, Vibro Champ XD
    Effects: Digitech EX-7, Digitech RP-250

  6. #6
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    cool project..

    The first tube amp I built was the "Firefly"

    It runs a 12AU7 power section for an output of about 0.75 watts...

    Sounds good
    Bow

    What are these strings for?

  7. #7
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    Default the second one

    Had parts for three so this is the second amp with a different paint job then the first. Going to look into doing a 1 watt or better SE amp using a 5902 pentode in a box just over twice the size of this one next.

  8. #8
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    Quote Originally Posted by jim p
    Had parts for three so this is the second amp with a different paint job then the first. Going to look into doing a 1 watt or better SE amp using a 5902 pentode in a box just over twice the size of this one next.
    Excellent stuff, Jim!
    "...and I am outta here!"
    Scott

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