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connecting wah to A100

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  • connecting wah to A100



    Hello everybody,
    </p>

    I would like to ask whether some of you know how to connect wah wah to an A100 model, but without preamp. I bought wah wah (Vox's model) and gave it to a techician, but he tells me that a signal of the Hammond exiting the wah looses its strength about 300x. I saw Trek ELB 1 unit that allows it, but, living abroad, find it nearly impossible. So, could anyone help? How to get the signal strengthed? I mean, if the ELB 1 is constructed, then it should be possible to construct something alike. How? Help, please! Thanks.
    </p>

  • #2
    Re: connecting wah to A100



    I wouldn't waste my time adding a wah to a Hammond. The wah wah works best with a source signal that is rich with harmonics. Like a guitar or clavinet. The Hammond is famous for a very warm full sound and not for rich harmonics. You would not get much of an effect for your trouble.</p>

    Geoelectro
    </p>

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    • #3
      Re: connecting wah to A100



      Hi Geoelectro,</P>


      Now I have to disagree, listen to this: http://www.youtube.com/watch?v=OyzZV-vpGGI</P>


      I think it's not very bad ...[;)]</P>


      Jussi</P>
      E-333 (modified)
      Leslie 147 (surprise, not modified...)
      Previous:
      T-200 (modified and sold)
      T-500 (modified and sold)

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      • #4
        Re: connecting wah to A100

        <span class="Apple-style-span" style="font-family: 'Times New Roman'; font-size: medium; "><div style="font-family: Arial, Helvetica, sans-serif; font-size: 10pt; background-color: rgb(255, 255, 255); padding-top: 8px; padding-right: 8px; padding-bottom: 8px; padding-left: 8px; ">

        Also check out Mike Mangan from the Big Organ Trio:</p>

        http://www.myspace.com/bigorgantrio</p>

        Can't remember which ones have wah.</p>

        and there's a free live recording here:</p>

        er, no! There's THREE live recordings here!!! Gotta bet me those new ones!</p>

        http://www.archive.org/search.php?qu...20organ%20trio</p>

        I understand even in the early days of Deep Purple Jon Lord had Wah, I think the song "Emaretta" has it.</p>

        I've also heard that for the Peddlers at least, the Wah was put in only on the Top Manual, meaning the lower manual could be used for straight rhythm or whatever while the upper was going mad.</p>

        This suggests the signal is taken before the preamp, I think. It also means the signal won't be severely attenuated by the pedal.</p>

        also at internet archive is the Console service manual:</p>

        http://www.archive.org/details/Hammo...iesB3A-100RtDG</p>

        I haven't looked in the main schematic yet... but surely there's only one line going into the preamp from each manual...</p>

        That's where I'd look to put the wah......</p>

        I have a spare wah pedal too, I'm going to look into this on my T500.</p>

        Have a look into it too, and we can compare notes!</p>

        Cheers!</p>

        -Brendooon</p></div></span>
        -1958 Hofner 550 archtop guitar -1959 C3 and PR40- -1964 Busillachio Harmonium- -1964 M101-
        -1967ish Leslie 122- -1975 T500 (modded..chopped, and reassembled!)-
        -DIY 760 FrankenLeslie/rat hideout-
        -1980 Electrokey Electric Piano- -Yamaha electric Harmonium (early 80's?)-
        -1990 Jansen GMF150 amp- -1992 Korg 01W/fd- -1992 G&L S-500 geetar.

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        • #5
          Re: connecting wah to A100



          i think wah on an organ is really cool. in my high school garage band "The Road Cones", we used a wah with an A-100 and 760 to play the keyboard part to the whos, wont get fooled again. sounded pretty darn good!</P>
          <P mce_keep="true"></P>

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          • #6
            Re: connecting wah to A100

            [quote user="Brendon Wright"]<SPAN class=Apple-style-span style="FONT-SIZE: medium; FONT-FAMILY: 'Times New Roman'">
            <DIV style="PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 10pt; PADDING-BOTTOM: 8px; PADDING-TOP: 8px; FONT-FAMILY: Arial, Helvetica, sans-serif; BACKGROUND-COLOR: rgb(255,255,255)">....


            I've also heard that for the Peddlers at least, the Wah was put in only on the Top Manual, meaning the lower manual could be used for straight rhythm or whatever while the upper was going mad.</P>


            ...</P></SPAN>[/quote]</DIV>That is the way Groove Holmes did it.

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            • #7
              Re: connecting wah to A100



              Well, that's interesting. Although the wah sweep is more limited with the Hammond as compared to guitar or a harmonic rich source like a keyboard, that effect is nicely done. As for WGFA from the Who, that was a Lowrey organ I believe, run through a synth like an ARP 2600's filter. A swept filter is a swept filter no matter where it comes from.</p>

              I would suggest making an effects loop. One where the signal levels are more compatable with the wah or other effects you might want to use. In an A-100, you could install an effects loop between the tone control wiper and the grid of the output tube. Install a couple of jacks on the preamp and you have an effects loop. A short cable plugged into both jacks bypasses the loop or you could put a bypass switch in.</p>

              Geoelectro
              </p>

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