Wanted WTB - VU Buffer / Driver PCB

[thomasdf]

Hello

I would like to buy a pair of VU meter buffer / driver PCB, preferably from EU. My first choice would be JLM's as I have a pair of these already and they are purrfekt but 20$ shipping + import taxes on top of that here in France is a bit of a downer. An alternative would DIYTubes in Russia, but there again shipping is a downer and I'd like to avoid buying from Russia at the moment.
So here goes : before I veroboard or etch mine, has anybody here some of these PCB for sale ? or similar ones ?

Thanks in advance

Thomas

 

[Murdock]

If somebody has more I would also take two!
I’m in the same situation.
Of course thomasdf is first in line.

 

[thomasdf]

Well if we can't find a "local" solution I'll so some quality PCBs and you are welcome to buy some, that way we split the costs. I usually have them made at JLCPCB, very high quality and crazy cheap.

 

[ruffrecords]

Well if we can't find a "local" solution I'll so some quality PCBs and you are welcome to buy some, that way we split the costs. I usually have them made at JLCPCB, very high quality and crazy cheap.

Excellent idea. There's no reason we could not have a grouDIY PCB for this. Lot's of people will use them.

Cheers

Ian

 

[dmp]

A repo of GDIY PCBs would be really cool. Similar to tech documents. I just designed and ordered a little pcb that takes a relay and breaks it out so it can be put into an amp or any other circuit. Designed in EasyADA (free) and ordered from JLMPCB. Cost was $7 for qty 30! Shipping was kind of expensive, but I did a few other PCBs together. A few like VU driver, a preamp input board (pad, phase, etc.) , a PSU, headphone amp, etc... would be easy and really useful for DIYers.

I would just suggest not directly ripping off anyone like JLM by copying a schematic directly. They've provided a nice supply to DIYers since the early days.

 

[rock soderstrom]

Good ideas in this thread. Please don't forget the self-etchers. I have some single sided designs for tube PSU PCBs that I can contribute.

This subsection could be named SEP (self-etchers paradise)

 

[TimG]

Excellent idea. There's no reason we could not have a grouDIY PCB for this. Lot's of people will use them.

Cheers

Ian

Maybe some other utility PCBs for popular switches and transformers?
Call them Simple Machines.

 

[thomasdf]

Hi all ! I like your enthusiasm.. I have spent some time this afternoon copying JLM's schematics for my own personnal use... Got this into Eagle and I'm designing a PCB inspired by his component placement... So maybe that's borderline !

If this gets a GroupDIY project, I am not sure this can be done ? Maybe we should start from scratch ? I like the VU meter + peak LED feature, from a single PSU rail.

 

[beatnik]

I have a bunch of vu buffer pcbs that are designed to fit on Sifam AL-29 meters with screw terminals

I think they came from a british console, perhaps a Soundcraft.

There is also illumination on the board to give some back lighting to the meter

 

[amplexus]

It seems you've got a solution for this already but I have a fully designed and tested dual VU driver/buffer PCB... That said i'm in Canada but imports and shipping may not be as brutal as AUS

Hi all ! I like your enthusiasm.. I have spent some time this afternoon copying JLM's schematics for my own personnal use... Got this into Eagle and I'm designing a PCB inspired by his component placement... So maybe that's borderline !

If this gets a GroupDIY project, I am not sure this can be done ? Maybe we should start from scratch ? I like the VU meter + peak LED feature, from a single PSU rail.

 

[thomasdf]

It seems you've got a solution for this already but I have a fully designed and tested dual VU driver/buffer PCB... That said i'm in Canada but imports and shipping may not be as brutal as AUS

Can you please share info & price here ? That way ppl interested can contact you.
Depending on the price + shipping + import taxes maybe it's cheaper than JLM, who knows ?
The more I think about it, the more I like the idea of having JLCPCB making a batch for me and maybe other ppl in EU. But tell us more ?

 

[amplexus]

Can you please share info & price here ? That way ppl interested can contact you.
Depending on the price + shipping + import taxes maybe it's cheaper than JLM, who knows ?
The more I think about it, the more I like the idea of having JLCPCB making a batch for me and maybe other ppl in EU. But tell us more ?

No idea- I built them for a one-off project so I have a few kicking around the shop still. They're not huge boards tho so could be relatively cheaply made in qty if there was enough interest.
Mine are a bit bigger than JLMs- it's a very slightly different circuit with no peak hold. I'd probably re-work a new batch to be smaller. Not a full kit mind, just a PCB but i'd bet most can source parts more cheaply in their locale.

 

[ruffrecords]

Hi all ! I like your enthusiasm.. I have spent some time this afternoon copying JLM's schematics for my own personnal use... Got this into Eagle and I'm designing a PCB inspired by his component placement... So maybe that's borderline !

If this gets a GroupDIY project, I am not sure this can be done ? Maybe we should start from scratch ? I like the VU meter + peak LED feature, from a single PSU rail.

I don't think JLM's VU driver schematic is JLM's design. It is fairly generic and appears all over the place. No idea who first came up with it.

Cheers

Ian

 

[oran.outan]

Hi all

Few month back I made a VU driver for one of my project

I just copy the DIY-tubes which is sold out: VU buffer DIY Kit

The size for the Resistors were a bit tight and need them for a coming project, so I revised the PCB and just got new one's. I just solder one but haven't try/test it yet...
I can let you know how it come.

I have 4 left that I could sell for 3€ + shipping from France...
If more EU interest I could make a new batch but I'm not making PCB order regularly...

best
F

 

[thomasdf]

Je t'ai PM !

Maybe if it's verified you could share the gerber and we could have a larger run made for the GDIY community ? I can totally live without the peak LED, even if it is a nice feature.

Edit : for the etchers, DIY-Tubes has shared the PCB : http://diy-tubes.com/image/data/manuals/vu-buffer-1.2-en.pdf

 

[oran.outan]

I have plug one today and all came good...

I will have 1 left...

 

[kingcredie]

Hi all

Few month back I made a VU driver for one of my project
View attachment 104338
I just copy the DIY-tubes which is sold out: VU buffer DIY Kit

The size for the Resistors were a bit tight and need them for a coming project, so I revised the PCB and just got new one's. I just solder one but haven't try/test it yet...
I can let you know how it come.

I have 4 left that I could sell for 3€ + shipping from France...
If more EU interest I could make a new batch but I'm not making PCB order regularly...

best
F

Hello,

I can see there are green soldermask and black soldermask PCBs in your products.
Do you need PCB suppliers? Some factories can make PCBs, some can offer one-stop service for you.
Where did you order your boards?

Linda

 

[kingcredie]

I have plug one today and all came good...

I will have 1 left...
View attachment 104363

Hello,

May I know what's this? The left one seems a meter.
What product are they used on?

Linda

 

[thomasdf]

Please don’t start posting like around like an AI just to sell your products. There is a specific section of the forum for this.

 

[z11111]

Bumping this thread because I have a pcb layout for this type of thing (like the JLM and DIY-Tubes units, plus several other similar ones) that I need to finish up. Can probably get to it in a week or two and then I'll just upload the gerbers as a .zip that anyone can use to place an order on their own from PCB fab of choice.

Edit: all done — see post #25 in this thread for this