yes, I have seen pictures of that
strangely its 100% hum free right now
both pots are connected with a wire soldered dirctly on housing
and there is a tin foil on pickguard/cover, connecting to jack plug ground
but I have a little very mild 'white noise/hiss' that might be related to interference
btw, almost all the noise I had before dissappeared when I left the 2 channel setup, and connected only one channel
funny thing
ground from unused channel on 2-channel power amp have to be connected to preamp ground
it connects to a free RCA on preamp, only connected to ground
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From your previous pic I think you have shielded pickup cable, which will help in reducing interference. Yes if you leave one channel of power amp floating open you could get that problem.
If you terminate it's ground to the same point in your preamp, you may have removed a ground loop there.
After I built my guitar preamp, a friend who plays bass asked me to build him something similar.
He plugs in to mixing board and with a passive bass, not enough volume etc..He normally uses a multi effects pedal (commercial, I won't say which), but the sound is noisy and not a lot of output level. So I am thinking a simple fet pre, active tone/eq and unbalanced/balanced line out. Wonder if I should suggest to put an effects loop in there?
If you terminate it's ground to the same point in your preamp, you may have removed a ground loop there.
After I built my guitar preamp, a friend who plays bass asked me to build him something similar.
He plugs in to mixing board and with a passive bass, not enough volume etc..He normally uses a multi effects pedal (commercial, I won't say which), but the sound is noisy and not a lot of output level. So I am thinking a simple fet pre, active tone/eq and unbalanced/balanced line out. Wonder if I should suggest to put an effects loop in there?
not sure
many effect pedals power on by plugging in the input jack connector
in the effect loop they would be permantly connected, and burn the battery
in such case it might be better to just have two input
with input selector switch
one input for pedals, and one straight
or have I overlooked something ?
I was just thinking out loud and wondering if it was worth adding it. Could always put it in later. Even the balanced output adds a few parts, need a +/- supply so don't want it to cost too much.
Are you planning on doing the tube section of your preamp? Sounds like you were happy with the fet.
Are you planning on doing the tube section of your preamp? Sounds like you were happy with the fet.
yes
and yes waiting for my new bass ... very happy with my 28" kids bass, but time to try a full(long) scale
its just ordinary Fender type P-style and J-style pickups
and I suppose it stands for Precisson Bass and Jazz Bass
the two famous Fender models
but this appears to be a silly slapbass
and just I hate slapbass
it all sounds the same to me
it has a pronounced metallick string noise
but since its a slapbass I suppose it meant to
maybe I will be able to 'repair' it
other strings could be needed as well
or I can just keep it as is
not sure what to think about this
for the money it is nicely designed and well built
I especially like the neck with wide string spacing
and it does have this charming chrispy gnarly slapbass sound
quite impressive they are able to do this
I guess its just nice to have as 'optional bass'
its cheap enough for sure
and I suppose it stands for Precisson Bass and Jazz Bass
the two famous Fender models
but this appears to be a silly slapbass
and just I hate slapbass
it all sounds the same to me
it has a pronounced metallick string noise
but since its a slapbass I suppose it meant to
maybe I will be able to 'repair' it
other strings could be needed as well
or I can just keep it as is
not sure what to think about this
for the money it is nicely designed and well built
I especially like the neck with wide string spacing
and it does have this charming chrispy gnarly slapbass sound
quite impressive they are able to do this
I guess its just nice to have as 'optional bass'
its cheap enough for sure
''Precision'' was the first electric bass mass-produced, named so because it was a fretted bass as opposed to the massive upright, fretless ''double bass'' of the times. Leo Fender was pretty clever and thrifty,for the split type pickup he apparently used two existing electric mandolin (4-pole) pickups and staggered them with reverse polarity wiring which had sort of humbucking effect. I am wondering if Fender was avoiding a legal dispute around the same time Gibson had issed their PAF humbucker? The split pickup also referred to a as ''double coil''. The poles rest either side of the string, that is also done on the single coil pup at the bridge. Jazz bass had single coil pickups and mainly the narrower neck, with strings closer spaced. I guess guitarists and bassists do like to stick with what works, that pickup design's over 60 years old. (!) Tin's bass has both type pickups and wide neck. Mine has only the split type mid body position. The bridge position pickup would be nice to get more treble tone, hmm maybe time to get the router out of the toolbox!
Have fun with the new gear Tin.
Have fun with the new gear Tin.
upper nut might be a fraction too high
neck could be a fraction lower into the body
bridge is made for a more curved fretboard
but fretboard does not have this curve
strings surface is too rough
frets ends are too sharp
upper nut is so sharp it almost cuts your hand when grabbing it from the stand
I could correct all this
and it would be worth it
but I simply do not have the time to do it
apart from the money issue, my other problem is that I only want a passive
before this I was looking at Warwick, but didnt want to spend the money
guess I will have to find the exstra money now
neck could be a fraction lower into the body
bridge is made for a more curved fretboard
but fretboard does not have this curve
strings surface is too rough
frets ends are too sharp
upper nut is so sharp it almost cuts your hand when grabbing it from the stand
I could correct all this
and it would be worth it
but I simply do not have the time to do it
apart from the money issue, my other problem is that I only want a passive
before this I was looking at Warwick, but didnt want to spend the money
guess I will have to find the exstra money now
yes, I know
I adjusted it the best I could
no, this metallick string sound is so evenly spread over the whole instrument its almost impressive
Im sure its done intentionally
but its simply too much
E and A string does sound quite interesting this way
but higher up its not so nice
again, Im very sure it could be made into a very cool bass
but right now its too experimental for me
and not what I had in mind when buying it
I have a custom carbon neck that needs a body
would be better for me to work on that
have had a second look at my short scale bass
as said, I rewired the pickups in parallel instead of series
but the sound was a bit thin, or having too much top
tone pot originally is mounted with a 0.068uf
some basses are mounted with 0.1uf as standard
and its is said that many mount a 0.47uf instead
this made me mount a 0.033uf in parallel with the 0.068uf
but after a while I found it a bit too flat
so now I have 0.015uf in parallel with 0.068uf
and that sounds really very nice
and the tone control actually works now
just a few pics of pickups
I tested polarity with a small magnet
surpricingly, they have opposite magnet polarity
so even if they look alike, they are not
as said, I rewired the pickups in parallel instead of series
but the sound was a bit thin, or having too much top
tone pot originally is mounted with a 0.068uf
some basses are mounted with 0.1uf as standard
and its is said that many mount a 0.47uf instead
this made me mount a 0.033uf in parallel with the 0.068uf
but after a while I found it a bit too flat
so now I have 0.015uf in parallel with 0.068uf
and that sounds really very nice
and the tone control actually works now
just a few pics of pickups
I tested polarity with a small magnet
surpricingly, they have opposite magnet polarity
so even if they look alike, they are not
Attachments
like said previously, I think this 'tone control' works quite good
doen't look like a tone control, but that's what it sounds like
it looks like its just a matter of the size of DC blocking cap
but there is more going on
notice I have changed connections from how its usually done
it also works like a mild compressor and 'harmonizer'
I can't explain why, but it does work like that
doen't look like a tone control, but that's what it sounds like
it looks like its just a matter of the size of DC blocking cap
but there is more going on
notice I have changed connections from how its usually done
it also works like a mild compressor and 'harmonizer'
I can't explain why, but it does work like that
Attachments
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