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Re: The newer amps

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In Reply to: Re: What DaveInVA said... posted by Satelliteman on August 5, 2006 at 16:14:41:

have 5 ohm 5 watt resistors in the cathode circuits. *Nuch* more effective than the 1 ohm resistors of earlier units.

Follow Ups:

Hi, Ralph. - Lew 12:20:42 08/07/06 (3)
I'm sure you meant "much" not "nuch".
Anyway, what does that do to the output impedance? I assume you take the output off the plate with the resistor on the cathode side.
- Re: Cathode output - Ralph 12:37:27 08/07/06 (2)
  No, we take the output off the cathodes. The cathode resistors are in series with that. But when you total up the entire lot of them, the result is a negligable increase in output impedance. However the tubes work better together so the impedance goes back down a little. The result is lower distortion- meaning better low level detail and smoother sound. The tubes last longer too.
  - Re: Cathode output - tubevibb 08:12:28 08/22/06 (0)
    nt.
  - Re: Cathode output - Satelliteman 23:43:24 08/07/06 (0)
    Oh man - ive just finished wiring in my 1 ohm resistors too ..along with the 150 ohms tonight ....looks like back to the soldering iron for me before before I go much further on the 2nd amp . I new things were going too smoothly
    Stu

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