#1
Hey

So I have a rather old Boss FV300L Boss volume Pedal.
However it does the job for me.
It has 2 ins and outs and a tuner out.

Now currently the tuner out is only linked to input 1.
I would like to use the volume with both my electric and acoustic guitar.
i.e plug electric into input 1 and output 1 to rest of effects.
Plug acoustic in to input 2 and then into rest of effects
but be able to the volume pedal with both and tune both too.

I;ve had a look inside, see attached photo. https://www.ultimate-guitar.com/forum/attachment.php?attachmentid=&stc=1

The far left jack is the tuner to which I attach my TU2.

On first look I thought it would simply be a case of jumping the output of input 2 (6th central pin from the left) to the tuner. But of course this means it is also connected to output 1 so defeats the whole purpose!

I was trying to think of another solution potentially involving diodes to make input 2 go to the tuner but not output 1 but this ends up blocking input 1 too.

Currently Im at a loss of idea other than to install a spdt switch with tuner out on the central and switchin between two inputs.

If anyone has an easy solution I'd much appreciate it!!
Attachments:
bos volume inards.jpg
Last edited by symanoy at Aug 17, 2010,
#2
you do realize that by using a low impedance volume pedal it will suck tone out of your guitar? i have one of these that i use in an fx loop and i tried it before the amp and my guitar actually lost some volume
www.myspace.com/decognition

Guitar Rig:
Epiphone Les Paul Standard
Godin Freeway
Korg DTR2000 Tuner
Axon Ax100
Hughes & Kettner Triamp Mk||
Boss V-Wah, CE-5, TR-2

Bass Rig:
Ibanez sr700
Ampeg BA600/115
Boss MT-2
#3
really? how comes?
I dont really notice any difference to be honest, does the job just fine!
#4
Ok, I have an idea not quite sure if it will work or not!
So cut the track between tuner out and input 1 and link it wide a diode going towards the tuner.
So input one can go to tuner but not back.
Then connect input 2 to the tuner aswell.
Hence it connects to tuner out but not output 1.
Is this feasible??
#5
Quote by symanoy
really? how comes?
I dont really notice any difference to be honest, does the job just fine!


well, i don't understand the science, but for me, that's what happened. try A/B ing it, see if you notice. you might only notice on a high gain channel, but see if it makes any difference. if it doesn't, cool w/e. if it does, and you don't mind, cool w/e
www.myspace.com/decognition

Guitar Rig:
Epiphone Les Paul Standard
Godin Freeway
Korg DTR2000 Tuner
Axon Ax100
Hughes & Kettner Triamp Mk||
Boss V-Wah, CE-5, TR-2

Bass Rig:
Ibanez sr700
Ampeg BA600/115
Boss MT-2
#7
ok, yes please a link would be very helpful!! I don't quite see why but would be nice to know!
#9
What about using a switch to switch the tuner to each input jack? Seems like a simple solution. It could be a push button to tap with your foot or you could possibly use a on-off-on toggle and in the off position would take the tuner out of your signal.
#10
Yeah im beginning to consider the switch option would just give more options and better tone apparently too!!
Wouldn't be difficult either!