shortcircuit's Recent Activity

  1. shortcircuit replied to the thread Marshall's greatest hits.

    Gonna use a Frondelli PPIMV instead of the traditional pre phase inverter master volume. The bias voltage should only be around -14 V,...

    May 20, 2019 at 4:09 PM
  2. shortcircuit replied to the thread Marshall's greatest hits.

    I like to live dangerously and probe the high voltages on the plates.:D

    May 19, 2019 at 10:20 PM
  3. shortcircuit replied to the thread Marshall's greatest hits.

    According to Marshall's schematic, there's 167V on the cathode of the cathode follower with a plate supply of 290V. I'm looking at...

    May 19, 2019 at 11:32 AM
  4. shortcircuit attached a file to the thread Marshall's greatest hits.

    Roger that, thanks. Recalculated the power supply with my load lines and measurements from Marshall's schematics. The 6AV6 is not...

    Apoplexi.png May 19, 2019 at 10:25 AM
  5. shortcircuit liked robrob's post in the thread Marshall's greatest hits.

    Looks really interesting. You've got 5 triodes using B+4 in a relatively high gain amp. I would suggest you add another power node to...

    May 18, 2019
  6. shortcircuit posted a new thread.

    Marshall's greatest hits

    JMP 50 + JCM 800 + 4PDT switch + @robrob + fixed bias 1974 output = heresy. Good thing this is a Fender forum. If this was a Marshall...

    apoplexi.jpg

    Forum: Shock Brother's DIY Amps

    May 18, 2019
  7. shortcircuit replied to the thread New 5F6-A: what's up with these measurements.

    I don't know how many times I freaked out about my voltage measurements before I realized that I'm still plugged in to the current...

    May 18, 2019
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