LukeFRC

The trimmer is to set IC8b to a certain gain for a given input - my guess is it’s to set a level for the transistors overdriving - but that’s just a guess. it’s not really taking me out of thing and make something else like a two channel fet2b and ROG ginger or something

It has a gain per channel then a master out on the top right?

And no idea why

I have NO IDEA what it actually sounds like - but I want to make one https://aionfx.com/project/l4-bass-preamp/ ( @disssa has probably made one!)

I was about to say something similar. I think this applies across the creative sector - When I went to art school we were taught that we could do what we wanted career wise - as long as we were prepared to work bloody hard, work other jobs to make ends meet and never really expect much more than minimum wage, at least for the first 5-10 years. What you are thinking about isn't an easy option, and possibly you may end up doing whatever you do now to supplant it for a while... so what about your current career don't you like? Is it the completely wrong thing or just the current job that is grinding you down?

Depends what you’re aiming for!

Source audio C4? All the octave you want without analogue glitching - and as one of those examples seemed more like a synth than a bass which you would get with the C4

Vong is built as per guide, no duff solder I can see… squeeeell different chips can change the freq slightly but something just isn’t right with it when combined with the sushibox. not sure what next - probably decide not to use the valve pedals, sell the Vong or put it in a drawer somewhere- which seems a shame @tauzero I’ll get that sticker in the post tomorrow- its been a super busy week.

double post

In my head you either have a preamp designed around a pickup, the stingray 2 and 3 band being good examples, or you have something with flexibility to tune to your bass. I used to do a wee bit behind a sound desk so having a PA desk type setup makes sense to me. The Glock is a mid control at about 550Hz if you’ve something you can test a boost/cut at that frequency to see if that suits your bass it might be perfect for you. (I’m not suggesting it is the best solution for you, I don’t know, but the east Uni pre also gives you active blend, a passive tone and the ability to tune the bass and treble controls too, so it’s not just the mid boost) im actually surprised how few preamps have semi parametric mids!

I think sometimes we get sucked into internet hype around X bass being better than what we have and just end up dissatisfied. I know I went through that process years back - but when I objectively went through point by point what could be better for me than what I currently had, I realised that the fancy/new/shiney expensive basses would be no better than what I had except for the preamp - so I upgraded the preamp. @Al Krow you've had enough very nice basses to know objectively how good the BB2005 is for you reguardless of price, and if it's good enough a preamp is a decent investment. It's a Yamaha so likely to be good regardless of price. Semi parametric mids can be uber powerful!

I haven't ever tried it but your experience backs up by thoughts about how it would work.

This then

I have a LT1054 I can try my thinking is though that if 7660s and 7660h both have a similar sound… and pressing the phase button makes it sound like a cap charging to a point/freq … that it might be something else in the circuit that causes something audible when combined with the sushibox I think it must be on the ground rather than the power. Awkward thing is that it’s the one pedal you get as a kit without having the schematic

So… Did the power filtering “fix” on the sushibox pedal… and then tried swapping the 7660s for a 7660h both of them silent on their own, high pitched whine together… wired either way oddly switching either the HPF or the polarity seems to reset the whine and it does a Star Wars like power up sound before returning to the same frequency very strange

A digital bass is 100% software using AI to generate playing and effects in any and every playing style to accompany the rest of the track. no analogue humans or physical things need exist - 100% digital, and before you ask, yes it would be good for metal

literally just found the same thing I wonder what it is then, might ask on the sushi box thread on TB

Ah I read about that - you can jumper pins 1 and 8

So... I have the same noise into either valve pre with two pedals... both with charge pumps. One is a John K Mini XO that is all gain and fizz anyway so you can't notice it unless you're listening... Mini XO uses LT1054CP - freq between 15 and 35kHz - typically 25kHz - so at the lower end that would be audible... The Vong came supplied with a ICL7660s which is min 5kHz, typically 8kHz ... 8kHz is about the sound I am hearing! so I need a TC7660HEPA or TC7660HCPA Mouser and Farnell have it - if anyone else has got a supplier that stocks them.... And given that I may have to pay a fairly large postage on one IC if anyone else with a Vong would like me to buy and post out to you... I mean the ideal is I test it first but...

I will report back

It’s the charge pump in the Vong I think