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Catalyst 122's latest activity

  • Catalyst 122
    Catalyst 122 reacted to linearone's post in the thread Combiners with Like Like.
    Speaking of filament chokes, not that this is my thread, but on the same vein of thought... I learned the coupling effect to the chassis...
  • Catalyst 122
    Catalyst 122 reacted to bob85's post in the thread Bias design, amplifier design, filtering etc. with Like Like.
    i have used both methods, im not keen on relays, i used one on the bias boards because it allows grounded base operation when the bias...
  • Catalyst 122
    Catalyst 122 reacted to -=PEAKABOO=-'s post in the thread Bias design, amplifier design, filtering etc. with Like Like.
    Why not start a discussion about the various bias designs, filtering and just basic theory based around transistorized RF amplifiers...
  • Catalyst 122
    Catalyst 122 reacted to linearone's post in the thread Combiners with Like Like.
    Plus it adds capacitance to the circuit which fucks it up for various reasons. It can couple in some cases and to the uninitiated can...
  • Catalyst 122
    Catalyst 122 replied to the thread Combiners.
    I use teflon, and the ones I've seen either etch the board or use a spacer used teflon also. It makes perfect sense if you're using...
  • Catalyst 122
    Catalyst 122 reacted to nomadradio's post in the thread Combiners with Like Like.
    If you use enameled wire to wind a combiner, the insulation-breakdown voltage of the enamel might cause the RF voltage to arc if placed...
  • Catalyst 122
    Catalyst 122 posted the thread Combiners in Amplifiers.
    Why are port combiners not directly on the board. In example I noticed one amplifier builder removes the copper under where the port...
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