• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

plate current

  1. Walter R

    Tube Matching - TV-7 vs Plate Current

    There are two methods commonly used to perform tube matching, using a tube tester or by measuring in-circuit plate current. The tube tester would seem preferable, but my TV-7 measures transconductance at a plate voltage of 150 vdc while the in-circuit plate voltage is nominally 440 vdc. So I...
    • Walter R
    • Thread
    • plate current tube matching tube tester
    • Replies: 4
    • Forum: Tube Audio
  2. Brainojack

    Determining plate current from schematic

    Am i making proper assumptions here? Viewing the schematic of the HeathKit EA-3, the voltages are labelled. In order to find gain of the stage i need the plate resistance and the load resistance... Plate Resistance: Is finding the plate resistance just a matter of calculating all the current...
Back
Top Bottom