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[quote author="clintrubber"]
There's already the G9-spare-HT-PSU board, could be a starting point
to form ideas.

And for that there's already the PSU-board of Fabio...

Sorry to spoil the fun :wink:[/quote]

Fantastic!

If only I ever read the Metas before posting comments...
 
Maybe I should post this in a new thread, but it should be possible to design a discrete harmonic noise module, now I think about it. Buffered signal combined with noise source via variable-Q high pass filter into envelope controlled mixer followed by buffered output.

Shouldn't be difficult to thrash a basic schematic together. Anyone know how to select transistors for best noise without an oscilloscope?
 
[quote author="rodabod"][quote author="clintrubber"]
There's already the G9-spare-HT-PSU board, could be a starting point
to form ideas.

And for that there's already the PSU-board of Fabio...

Sorry to spoil the fun :wink:[/quote]

Fantastic!

If only I ever read the Metas before posting comments...[/quote]
Rod - I use Joe's PSU boards - and convert the 48v phantom line to a (anything up to) 48v for an extra line (to use for relays..
They also have 2 x + 5v - 37v and a 3 x negative 5v - 37v line
I also have some of Fabios 312 PSU boards as well...
 
How about a PRR varimu board for the etchphobic if PRR doesn't mind and Kent is ok about using the layout? also Kiira mentioned wanting a solid state EQ - how about the brit EQ from :
http://www.akustische-kunst.org/audio/briteq.html
although permission to use the layout should be obtained also.

just a thought.
 
[quote author="Mlewis"]How about a PRR varimu board for the etchphobic if PRR doesn't mind and Kent is ok about using the layout? also Kiira mentioned wanting a solid state EQ - how about the brit EQ from :
http://www.akustische-kunst.org/audio/briteq.html
although permission to use the layout should be obtained also.

just a thought.[/quote]

Cool! About this EQ, it needs any special revlog pot or no? It's the Focaright EQ right?
I also wanna do some PRR VariMu to me :)

Both project are done in terms of pcb design so it's just a matter of converting them
to gerber if the authors let me do it or to get the gerbers with them ( I recall asking Kent if he has the Gerber files and he said no....) and fab it.

The modular aproach is becoming more and more interesting... :D
 
[quote author="Bauman"]

Cool! About this EQ, it needs any special revlog pot or no? It's the Focaright EQ right?

[/quote]

Yes it is (actually the 430 version). I did a version of the layout but couldn't test it yet as i wait for some final parts so no listening tests yet.
It doesn't need any special pots. However i also did the shelving eq and lowcut/hicut filter section and those need 3 gang potis which i already obtained but still haven't tested yet. I am curious how this eq will turn out.

I also have ordered the parts for the 110 version EQ as i plan on making 2 channels as well. Can't wait to see (hear) how both versions will compare.

Flo
 
Hey Fabio,

Pleased to hear plans for more PCB's!!!

My votes are for:

* Redd47
* 4 x NYDave one bottle pre on a motherboard and a powersupply (if Dave gives permission of course!! - maybe you could give him comission on every sold... I'd pay more to give back to Dave)
* Standalone sidechains for SSL and Forsell
* In / out buffer boards configurable for discrete or chip amps, with or without in / out transformers
* Helios pre /eq

and definitely the PRR varimu... I'm curious to hear how the discrete sidechain and Neve output works out... maybe this would be the one to do up PCB's for - you already have the BA283's for outputs!

Keep up the good work!

Justin.
 
Fabio,

I would LOVE Helios cards (I have original pre's, line output and summing cards to back engineer if you want) these could be used for pre's. eq;s whatever . . . (PLEASE!) I have some schemos(pre-amp. line amp. passive eq etc,), and I am trying to get hold of active eq circuit. This would ROCK with a doa instead of metal-can NE533(?) in it I/m sure . . . outrageaous as stock for me! idon;t have any anymore(stolen) :sad:

I would LOVE an NTP M100 in 2520 footprint . . . .

ANY other doa's!

I am thinking about a mic pre/comp using API type pre, and LA4 type comp. This would really fit the bill for a universal idiot-proof mic-pre/comp in my book! Just what all my customers NEED so as NOT to ruin great performances at home . . . So many sonic possibilities with different Iron/DOA's and maybe Opto's . . . . Eq not necessary here most of the time imho. perhaps a 553 type?

I would highly recommend 553-type passive eq, with switchable frequencies in the top/bottom. HF is easy, changing caps, and LF should be easy with multi-output inductor like Sowter for example . . My absolute greatest wish would be for a Sontec type eq with 3 or 4 mid-bands ala Sontec, and PAssive switchable shelving ala 553 . . . . .but Hey! - that's just me . . . !

Honest truth is, ANYTHING with your touch!


Kiindest Regards,

ANdyP

ps imho. forget the Foaklyblite eq . . .it;s not up to much! we have one and I cannot find a use for it! I try and try . . . I know this goes against the grain, but in 20 years I have yet to find a use for this eq . . . Sorry St Rupert, I love EVERYTHING else you have ever touched, especially MEDICI in the Chippy department, but would suggest Trident TSR or 80B or Amek ANgela or Medici or even a simple Trimix, if you want chips . . . MAbe even a copy of the Maselec SSL eq card if that wouldn;t cause any offence to Lief . . . .they are F@@king amazing!

Remember. It's just my opinion!

ANdyP

ps I think that series of individual boards, one for each function, ie pre/eq/comp/aux sends/groups-busses/master section/ would be more commonly acceptible, since we are all such opinionated individuals(or is that just me . . . ?) that way we could all configure what we wanted . . .
 
i vote for the slowblow!

I also like the idea of a tube PSU and sectional PCBs of circuits.

we still need a discrete PSU... which i swore i would sketch out but never finished.. :sad:
 
that's a good idea!! Maselec eq cards !! keef know's Leif but it seems a bit wrong somehow to rely on him to ask. anybody know if Leif's a member here? or even if there's an older, discontinued design that he wouldn't mind too much if people cloned?

i seem to remember keef explaining about the high cost of pots for converting a card into outboard.
 
this is a bit off topic since it's not as far as i know an existing project but something that would really benifit everyone would be a modular relay system for costructing custom switches. maybe 24 positions/settings per layer and just add extra relay layers or boards for dual/tripple/quad pole etc. all controlled from a single, easy to find pot. then people could build circuits that included rediculously hard to find multi pole, multi law pots.

not sure if this is viable or how to do it but it'd be really useful.
 
Only cool ideas here :green:

A relay switch idea was developed by MCS, he got something working, I got a prototype sometime ago, really really nice sutff.

I hear ya Andy! I had a couple of request for LA4 a while ago... and 553 is still on top of my list for sure.

Was wondering how cool is Trident old class A stuff. I recall some simple compressor and micpre... http://www.waltzingbear.com/Schematics/Trident/Trident_A_Range_Channel.pdf

cheers!
Fabio
 
damn you fabio!!! you and your unbounding initiative! :thumb:
i already have too many projects to build, but my votes are for the
reddddd47, uni-tube PSU, LA4, helios pre and how about the 610pre?
oh, the 553 sounds good and the tridnt A range too, and the slow blow... and a partridge in a pear tree. :green:
how about designing the all boards with options for linking to comp boards, eq boards, mic pre boards, etc. instead of the all in one boards...or is that the idea of the relay switch board mentioned?
cheers,
grant
 
I would vote for the 4 channel SpectraSonics and a 2 or 4 channel 553.

The SpectraSonics seems like a relatively low-cost build and it seems like a different flavor, too. Plus, who doesn't like a box full of preamps?

I like the 553 EQ but I don't want to mess around with a Lunchbox format. I think with pots mounted off-board, and some slight rearranging, you could probably squeeze 4 onto a board. The perfect mate for the above. :green:
 
my dreamlist ... ahh wishlist

comps:
-chand*er TG1
-heli*s 700
-nev* 3354
-neuma*n U473

eq:
-anything heli*s
-ma*elec MEA2

pres:
-V76

okay, it isnt very realistic, but let me dream! ;)

or what about the adr c*mpex? should be more realistic...
 
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