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Determine reverb tank impedance

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  • Determine reverb tank impedance

    Hey all!

    I just received a nice little amp as a gift; an Marlboro G-50R that already has a great sound. The QSB (Quadra Sound Blender) is a nice add-on and complete's the 'weirdness' of the amp.

    The reverb is not that good. The tank delivers a very short, almost slap back delay like sounds that is or too little or too much. No nice reverb sounds can be made and the 'echo' setting of the QSB is not that usuable.

    I tried it with another reverb tank which I had laying around and that made it all MUCH better........ Now I want to add a 'real' reverb tank in the combo to replace the small, one spring, reverb that is now housed in the top.


    But now I need to determine the impedance of the tank. I'll add a schematic later which states the reverb circuit. Can I measure a reverb tank? Does it matter what impedance it has???

  • #2
    How the driver circuit is designed should give you all you need to know.
    Now Trending: China has found a way to turn stupidity into money!

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    • #3
      Here is an article that explains how the numbering system works on reverb tanks. It also shows what resistance measurements to expect for different impedance tanks:
      https://www.amplifiedparts.com/sites...d_compared.pdf
      Originally posted by Enzo
      I have a sign in my shop that says, "Never think up reasons not to check something."


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      • #4
        Thanks!!

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