[JN] EXTERNAL: Re: EXTERNAL: Re: EXTERNAL: Re: raspberry pi + mo0de/volumio + foobar2000

bleeding gums bleeding.gums at gmail.com
Wed Apr 17 17:36:59 CDT 2019


There is also the darling club.

https://diyparadise.com/w/darling-club/


On Thu, Apr 18, 2019, 4:05 AM Danielak, Robert M via Sound <
sound at soundlist.org> wrote:

> working from memory, there should be two schematics for the simple cap
> coupled design.
>
> the original is from the sound practices article
>
> and there should be another that I built for nynoise.
>
> the main difference is the power supply in the nynoise version was using
> commonly available
>
> Hammond transformers versus surplus.
>
> any power supply between 250 and 280V will work – current draw is about
> 60mA. size for more if you can.
>
>
>
> there is a dc coupled version, too.
>
> most folks seem to like this one better.
>
> there’s one design using a Hammond power transformer and another using a
> James power transformer.
>
>
>
> if you can find the James OPTs these are great bang for the buck – whether
> you go cap coupled or dc.
>
>
>
> imho, the special sauce in this design is using one power supply for both
> channels and both stages -and sharing the cathode bias resistors.
>
>
>
> the dc darling with james transformers is what I’m using right now.
>
> if I did it again I’d use a different power transformer. the james is
> double what an equivalent Hammond would be.
>
> it looks nicer, though…
>
>
>
> I think edcor had a 600VCT power transformer with two 6.3V windings that
> would be perfect for the dc darling.
>
> I think it was beefy enough to make a dc *double* darling – but that’s
> crazy talk  ;)
>
>
>
> I’ve built a few dc darlings that drive a 300B output stage. I really,
> really like this topology.
>
>
>
> I believe my next darling variant will be based upon jc’s rabid hybrid
> approach.
>
> same power as the 300B approach – hopefully with the “darling/1626” sound.
>
> I have the paper design sorted out to some extent. and I started the FET
> layout on a bigass heat sink
>
> while I was home for the Christmas holidays. but I’m still a migrant
> worker in coloRADo, away from my family
>
> and workbench.
>
>
>
> probably TMI…
>
>
>
> go with the dc darling  ;)
>
>
>
> have fun!
>
> bob.d.
>
>
>
>
>
>
>
>
>
> *From:* BBands <bbands at gmail.com>
> *Sent:* Wednesday, April 17, 2019 12:54 PM
> *To:* Danielak, Robert M (US) <robert.m.danielak at lmco.com>; Joes <
> sound at soundlist.org>
> *Subject:* EXTERNAL: Re: EXTERNAL: Re: [JN] EXTERNAL: Re: raspberry pi +
> mo0de/volumio + foobar2000
>
>
>
> Hey Bob,
>
>
>
> I think this link gets you to an archived version of that page:
>
> http://www.oocities.org/TimesSquare/1965/darling.html
>
>
>
> There seem to be a number of versions. Can to recommend one for me to
> start with?
>
>
>
> Best,
>
>
>
>       John
>
>
>
> On Wed, Apr 17, 2019 at 10:22 AM Danielak, Robert M <
> robert.m.danielak at lmco.com> wrote:
>
> Jeremy and I used to be brothers in arms back in the day!
>
>
>
> this might get you back to my old “darling” page (can’t get there from
> work).
>
>
>
> http://www.oocities.org/bobdanielak/darling.html
>
> _______________________________________________
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> Sound at soundlist.org
> http://mailman.soundlist.org/mailman/listinfo/sound
>
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