[HAM] Oiling and where to get it...

[Paul Chandler]

Dave, where were you when I asked about the wiring of my phones socket ?

Paul
----- Original Message ----- 
From: "Dave Bishop" <xxcaptinxx at comcast.net>
To: "The Hammond Forum" <hammond at zeni.net>
Sent: Sunday, February 11, 2007 9:58 PM
Subject: Re: [HAM] Oiling and where to get it...


>A teaspoon in each of the two funnels once a year should do fine, plus 
>eight
> drops (not more) in the rectangular cup on top of the run motor.  You can
> buy more Hammond oil from the Hammond Store or any other tech.  Don't mess
> with any other type of oil, since many contain waxes that will foul the
> oiling wicks.
>
> As to the C3, the symptems description doesn't correspond to what happens 
> in
> the electronics.  With percussion and Vibrato/Chorus off, everything works
> correctly on both manuals and both presets?  When you turn on the 
> percussion
> do you lose specific drawbars or specific notes, or do all the notes sound
> but they are weak and crackly?
>
> Based on what you report, with the organ unplugged I would gently wiggle
> the exposed wires soldered to the front of the pre-amp (marked A, B, C, D
> and H), with the expectation that you may find a cold solder joint.  Then 
> I
> would spray each of the tube sockets with De-Oxit to see whether cleaning
> them will bring back the bass sound.  If not,  I would swap the two 6AU6
> tubes between their sockets and see whether the Vibrato/Chorus problem
> changes from off to on.  Finally, I would swap the 6X4 tube with a known
> good tube on the chance that there is not enough current to power the
> vibrato and percussion parts of the circuit, but there is enough to run 
> the
> rest of the pre-amp.  After that I would be thinking about dendrites in 
> the
> vibrato and percussion switches, but I would probably do some diciplined
> signal tracing at that point.
>
> If this is sounding too complex, perhaps a tech should look into it for 
> you.
>
> Regards,
>
> Dave Bishop
>
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