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3 hours ago, disssa said:

Peavey Standard MKIII Preamp:

 

What is this, please tell more

24 minutes ago, LukeFRC said:

I think the ideal from a cost basis would be to breadboard and test a circuit, work on ways to improve or edit it- then make a small batch for friends/selling - I’m a graphic designer so the fun of packaging and coming up with a look would be fun too.

Issue would be coming up with something original enough to make worth doing 

100% agree

15 hours ago, LukeFRC said:

Partly as a “I should try this” I designed and ordered some pcbs last year for a project. 10pcb cost as much delivered as a pint in a city.

learnt a lot, made the mistakes etc but it was interesting even at low order numbers how cost effective getting the boards populated were- it made me wonder about squeezing some projects into 1590a size enclosures 

 

the main downside would be a minimum order number of 10 I think which would cause a whole heap of problems.

 Not all of them require min order of 10 though

36 minutes ago, LukeFRC said:

It’s actually quite interesting how you see more and more “boutique” manufacturers moving towards SMD construction 

Well, it's cheaper to make and has no negative impacts on "tone"

3 hours ago, LukeFRC said:

I think if we get up to 100 resistors and 65 capacitors you have to be considering the TC electronics £40 version of that - with the added benefit of not being my shoddy soldering!!  

Yes but if the TC was « hand wired », it would be over 500 😆

4250 can have a very low quiescent current (in microamps range) - might be interesting for something running on batteries or even on super capacitors.

As it was already suggested, might just be the documentation that's describing it wrong

24 minutes ago, LukeFRC said:

Wired directly to board though 

Ouch. Then if it's indeed backwards, this means a screwup from whomever routed the board.

4 hours ago, tauzero said:

 

No, it's linear taper.

Then it's weird. Easy to flip two wires if the action is backwards

2 hours ago, tauzero said:

 

I shall await your verdict with interest.

 

One minor point - I'm not sure if the documentation is wrong or the control is backwards, but it says the Mid control on channel 2 is counterclockwise for boost and clockwise for cut.

That might be because it’s difficult to source reverse log pots. Did they use a normal log putting it backwards instead? This allows for a useful taper with a much more easy to find pot…

2 hours ago, tauzero said:

 

There's more info in https://aionfx.com/app/files/docs/l4_bass_preamp_documentation.pdf

They don’t really explain the design choices

I wonder what's the distortion source is.

Is it Q3 and Q4 or is the transconductance amp IC8B is somehow overloading?  I'm not that familiar with the transconductance stuff to see it from the schematics directly.

35 minutes ago, LukeFRC said:

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

Ah this might be that

21 minutes ago, LukeFRC said:

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!)

Weird that it has a distortion but no way to control its gain/level?

5 hours ago, SurroundedByManatees said:

Got this one in last week, a nice fretless in see through blonde finish. Probably late 80s.

 

 

 

2 hours ago, SurroundedByManatees said:

Got this one in last week, a nice fretless in see through blonde finish. Probably late 80s.

 

 

 

1991, the "Leo Fender Signature" basses were made the year he died.

(I have one but fretted)

1 hour ago, LukeFRC said:

Depends what you’re aiming for! 

Have ideas for buffers - DIs - EQs - boosts (maybe not all in the same device!)

Gathering my will to restart my electronics adventures. If all is working out like I expect it will, I'll be subjecting y'all to my electronics experiments soon

Nothing original most probably (but what new can you possible invent in the transistor real these days!)

Definitely looks like Guild humbuckers

My daughter:

"Papa, WHY is this so beautiful?"

Pretty sure you can find a Starfire II for this price. These have two Darkstars and sound great

Yeah, being all mahogany was what I liked about the red and what made me decide among other things

Water jet would be more appropriate 

26 minutes ago, Obrienp said:

Yeah, I think it was some sort of epoxy and really randomly applied. Not really potted, just haphazardly sploged. That is what caused my luthier friend so much work.

Well, I didn't feel like doing the work, just exchanged this bass for a Squier Precision that I then sold

23 hours ago, Obrienp said:

Got to state my vested interest up front, I am selling mine in the Basses for Sale listings. The reason it is dark is that  the pickup is wired in series as standard. I have got more tones out of it by wiring it to have a series/single coil/parallel switch. Single coil and parallel have a brighter top end. The FSR version has a 4 conductor pickup as standard but they just wired it in series for some reason . I had to get a luthier to rewire my pickup to 4 conductor (standard Affinity version). I guess if you give it 500K pots it will make it louder and brighter too.

 

Yes, the Jag body shape does cause it to neck dive but so do quite a few Jazz style basses (in my experience ). At least the Jag H is quite light.

I would've rewired mine if it wasn't potted in some kind of hard goop (epoxy?)