5th knob wiring mod/other wiring mods

Setup, repair and restoration of Rickenbacker Instruments

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DavidW
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5th knob wiring mod/other wiring mods

Post by DavidW »

For the 5th knob wiring mod could anybody provide a schematic for me? Also what are some other wiring mods I don't mind extensively modding my Rick just curious what some other people have done.
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ken_j
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Re: 5th knob wiring mod/other wiring mods

Post by ken_j »

On a 350 I wired the 5th pot to control the volume of the middle pickup. I wired it direct to the output as requested by the guitar owner.
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jingle_jangle
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Re: 5th knob wiring mod/other wiring mods

Post by jingle_jangle »

Here's the method, taken from the old alt.guitar.rickenbacker usergroup:

"Subject: 5.16 How can I rewire my 325 or 350 to make the 5th knob function as a volume knob for the middle pickup?

What you end up with is a regular acting 2 pickup rick, less 5th knob, and the fifth knob acts as a volume for the middle pickup. The mid pickup functions independently of the switch, and it does not utilize a tone knob. Works great on my 350, but takes a little getting used to. To utilize the mid pickup by itself, you'd have to kill the volume on the other 2 pickups.

To perform this, have the headstock facing away from you. Remove the pickguard and flip it over:

1. Disconnect the middle pickup lead from the top right post on the selector switch. Also, remove the mid pickup ground (braided wire) from the bass tone control, or whichever pot it is soldered to.

2. Find the red wire running from the left post of the 5th knob to the center post of the bass volume pot and remove this wire completely. Keep the wire as you'll need it later.

3. Find the red wire running from the bottom right post of the selector switch to the middle post on the 5th volume pot. Remove wire at middle post of 5th knob, and solder it to middle post of bass volume pot.

4. Solder the mid pickup lead to the center tap on the 5th pot.

5. Solder the mid pickup ground (braided wire) to the left tap on the 5th pot, as well as to the pot itself. You may have to strip the wire to have enough braid for this. I ran the braid through the tap, soldered it at the tap and then to the pot.

6. Utilizing the wire removed in step 2, run it from the right tap of the 5th pot to the left tap of the bass volume pot. Tracing this wire, you'll see that it is the hot supply from the input jack, which is jumped through the treble volume pot as well."
DavidW
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Re: 5th knob wiring mod/other wiring mods

Post by DavidW »

Thanks Paul also would there be any chance that theres a schematic? By the way I looked up the guide I'm surprised I haven't seen this before its great =)

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jingle_jangle
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Re: 5th knob wiring mod/other wiring mods

Post by jingle_jangle »

I don't know of any schematic, but using the written description above it should be easy to draw one.
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