5th knob
Moderators: rickenbrother, ajish4
- tony_carey
- Advanced Member
- Posts: 2055
- Joined: Thu Oct 28, 2004 6:00 am
- Contact:
I use it all the time Scott, as a master tone control. It's a great control that is shrouded in mystery. On the mid select, it has max treble if it is turned fully clockwise, but on the neck p/up, it is totaly opposite, more treb when turned counter clockwise. It has no effect on bridge p/up only. Really great.....

'Rickenbacker'...what a name! After all these years, it still thrills me.
-
goldenoldie
- New member
- Posts: 77
- Joined: Thu Jul 29, 2004 9:14 am
The fifth knob is another volume control for the neck pickup.
It's wired in series with the neck pickup volume control, making it function as a fine adjustment or maximum volume setting for the neck pickup, depending upon how you look at it. What it actually does for you depends upon how you use it in conjuction with the other controls.
By the way, some of the schematics are incorrect. Take this one, for example:
http://www.rickenbacker.com/pdf/19502.pdf
It shows that the lower (most clockwise) terminal of the 5th pot is grounded. In fact, it's not. If it were, it would cut the neck pickup out completely when set fully clockwise.
Here's the only 5-control schematic I found that shows this correctly:
http://www.rickenbacker.com/pdf/19519.pdf
Granted, I'm comparing a contemporary stereo circuit with a vintage dual mono, but I don't think this has any bearing on the wiring of the 5th pot.
It's wired in series with the neck pickup volume control, making it function as a fine adjustment or maximum volume setting for the neck pickup, depending upon how you look at it. What it actually does for you depends upon how you use it in conjuction with the other controls.
By the way, some of the schematics are incorrect. Take this one, for example:
http://www.rickenbacker.com/pdf/19502.pdf
It shows that the lower (most clockwise) terminal of the 5th pot is grounded. In fact, it's not. If it were, it would cut the neck pickup out completely when set fully clockwise.
Here's the only 5-control schematic I found that shows this correctly:
http://www.rickenbacker.com/pdf/19519.pdf
Granted, I'm comparing a contemporary stereo circuit with a vintage dual mono, but I don't think this has any bearing on the wiring of the 5th pot.
The way I use the blend knob on my 460 is: (1) I check how loud the bridge pick-up is, (2) I check how loud the neck pick-up is, (3) I turn the blend knob while switching between pick-ups until I get the desired balance bewtween the two (the "right" sound). This way, I can switch to the neck pick-up for the thinner jingle-jangle sound and then switch to both to add the low end.
It is better, of course, to know useless things than to know nothing. - Seneca
Or better still, in my view, rewire the instrument so that each pickup has its own separate volume.
Life, as with music, often requires one to let go of the melody and listen to the rhythm
Please join the Official RickResource Forum Facebook Page https://www.facebook.com/groups/379271585440277
Please join the Official RickResource Forum Facebook Page https://www.facebook.com/groups/379271585440277
- tony_carey
- Advanced Member
- Posts: 2055
- Joined: Thu Oct 28, 2004 6:00 am
- Contact:
If you read the manual, the 5th knob does everything, including making the tea & telling bedtime stories. It is the ultimate 'suck it & see' control. You have to play with it with your set up, as it does different things for different set ups. It is brilliant & I would be lost without it.
I have just realised that it is the ONLY control I use on my gtrs! All the rest are set flat out.
I have just realised that it is the ONLY control I use on my gtrs! All the rest are set flat out.
'Rickenbacker'...what a name! After all these years, it still thrills me.
"I have just realised that it is the ONLY control I use on my gtrs! All the rest are set flat out."
The 4005's have that 5th knob, as well....I use it the same way you use it...it seems to make the sound go from rich/full to thin/trebly and anywhere in between.
The 4005's have that 5th knob, as well....I use it the same way you use it...it seems to make the sound go from rich/full to thin/trebly and anywhere in between.
1973 4001 MG cb fwi
1986 4003 Shadow
2012 4004Cii FG w/gold trim
1986 4003 Shadow
2012 4004Cii FG w/gold trim
