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Princeton reverb build

Discussion in 'Shock Brother's DIY Amps' started by Meteorman, Oct 2, 2020.

  1. Meteorman

    Meteorman Tele-Afflicted

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    Been pullin the cabinet together. Fender tele color scheme on curly maple.
    Antique (reissue) radio grille cloth

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  2. Meteorman

    Meteorman Tele-Afflicted

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    I fired up the amp following Rob's startup procedure --- passed all the checkpoints --- and I am really pleased with the sound of the amp.

    One problem though - it seem like my reverb is not working, or at least it's never on.
    I made my own very simple foot switch - as per below, except I omitted the whole LED/battery circuit. So its pretty simple Tip (white) Ring (other white) and Sleeve (both blacks). It seems to turn on/off the trem but have no effect on the reverb.
    with the footswitch RCA cables completely removed, the trem is always on and again no reverb.

    I isolated all RCA jacks from chassis EXCEPT the reverb OUTPUT jack - did I get that wrong ? it looked like (on Rob's layout) that one should be grounded to chassis - I couldn't tell from Hoffman's layout.
    Pic of RCA connections below.

    Its a MOD 4AB2C1B tank with insulated input and grounded output.

    There's 363V on the V2 plates and 142V on the V3 plates.

    thanks for any tips.

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    Last edited: Oct 27, 2020
    Pick_n_Strum likes this.
  3. Meteorman

    Meteorman Tele-Afflicted

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    never mind - found my issue - shorted cable
     
  4. Meteorman

    Meteorman Tele-Afflicted

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    been playin thru the PR for a while now - it's my go-to amp now - until the wife tells me to knock it off, and then i can hit that in/out switch pedal, turn on RobRob's Deluxe Micro, slap on the earphones, and then my bad playing annoys only myself

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