JHS - Little Black Buffer  [traced]

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JHS - Little Black Buffer

Postby kev1n » 10 Mar 2012, 07:12

I had the chance to check out a little black buffer the other day. Started to trace it, it looks like its based off jack ormans mosfet buffer. Has the same ic and 10 uf/ .1 uf cap.
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Re: JHS Little Black Buffer

Postby sinner » 10 Mar 2012, 08:29

Cool, thanks for the info. Any picts incoming shortly? :thumbsup
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Re: JHS Little Black Buffer

Postby Seven64 » 14 Mar 2012, 23:55

on their website there is a small pic which shows its an IC buffer.
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Re: JHS Little Black Buffer

Postby Jack Deville » 15 Mar 2012, 00:16

So many high value resistors!!

Why!? WHY!? WHY!?

Opamp followers are EE101 material.
Hopefully, the excessive use of excessively high value resistors are being used as simple pulldowns, and one of the 0.1uF caps is being used as a power supply decoupling cap, but I suspect this is not the case. We'll never know without a trace side shot.
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Re: JHS Little Black Buffer

Postby Neeno » 07 Nov 2012, 17:15

Hey guys !
Has anyone a gut-shot of this buffer ?
Is it based around a BS170 or a TL07x ?

Thank you in advance !
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Re: JHS Little Black Buffer  [traced]

Postby POTL » 18 Jul 2017, 07:05

Little Black Buffer.png
Schematic is here 8)
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