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Difficulty of 5F1 build

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  • Difficulty of 5F1 build

    So, I have a '57 GA-5 chassis with no cabinet to fit it in. Since the circuit is a dead on copy of a champ, I'm thinking about just populating everything on a turret board and using a 5F1 chassis/cab.

    I have some experience modding amps, very simple and easy stuff.

    Question is, how difficulty would it be and what additional parts/equipment should I get?

    37/63 lead silver solder
    Variable temp soldering iron
    Multimeter to measure voltage

    Thanks in advance.

    Sent from my LM-V405 using Tapatalk

  • #2
    Re: Difficulty of 5F1 build

    step 1.
    WARNING: A tube amplifier chassis contains lethal high voltage even when unplugged--sometimes over 700 volts AC and 500 volts DC. If you have not been trained to work with high voltage then have an amp technician service your amp.

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    • #3
      Re: Difficulty of 5F1 build

      The caps have been draining for weeks and I would properly discharge them before working on it. I hear your point tho.

      Sent from my LM-V405 using Tapatalk

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      • #4
        Re: Difficulty of 5F1 build

        https://s3.amazonaws.com/tubedepot-c...pdf?1503416751
        not exact 5f1 circuit but good instructions, testing and troubleshooting guide.
        Last edited by justFred; 06-14-2019, 01:21 PM.

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        • #5
          Re: Difficulty of 5F1 build

          Difficulty maybe 2 or 3 on a scale of 1 to 10

          Lethality 11 on a scale of 1 to 10

          #1 GET/MAKE A CAPACITOR DISCHARGE TOOL

          https://www.ifixit.com/Guide/Constru...arge+Tool/2177

          You'll need 2 phenolic boards (one to populate the electronics on & the other to insulate them from the chassis)

          nuts bolts & washers

          turrets or eyelets to fit to the board to terminate the components to

          drill & small drill bits to drill holes for turrets/eyelets & holes in chassis to mount tagboard to

          various coloured lengths of wires

          Short & quick way email mojotone modulus etc explain what you want to do ask them for a small parts kits to do it, probably cost a few $ more than sourcing everything yourself but worth it for convenience

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