[sdiy] Barron ringmod

Oren Leavitt obl64 at ix.netcom.com
Sat May 21 21:30:03 CEST 2016


The interesting thing here is while you're clipping the input 
differential, there are the two additional zener diodes connected to the 
ground. These will clip if either input is Vzener + one diode drop above 
or below the common ground.

This does beg to be breadboarded...

The presence of 60mA fuses on the inputs/output indicates they must have 
been living dangerously :)

- Oren

On 5/21/2016 2:06 PM, John Marshall wrote:
> It looks to me like a full wave clipper. The diodes are not in a ring
> but are full wave bridge. The circuit will clip at the level of the
> zener plus two diode drops.
>
> Take care,
> John
>
> On Sat, May 21, 2016 at 11:17 AM, <thx1138 at earthlink.net
> <mailto:thx1138 at earthlink.net>> wrote:
>
>     Hi BBob,
>
>     Circuits from the ID perhaps?
>
>     Perhaps I can build it up when I return from Europe trip Mid June.
>
>     I have a bit of time towards end of June and am starting a new run
>     of Modules in July.
>
>     best regards,
>
>     Terry Shultz
>     thx1138 at earthlink.net <mailto:thx1138 at earthlink.net>
>
>
>>     On May 21, 2016, at 10:59 AM, bbob <fluxmonk at gmail.com
>>     <mailto:fluxmonk at gmail.com>> wrote:
>>
>>     On a page about Bebe & Louis Barron, Barry Schrader includes what
>>     looks like a notebook page w/ an odd ring-mod schematic:
>>
>>     http://www.barryschrader.com/blog/bebe_barron_1925_2008
>>     http://barryschrader.com.hostbaby.com/img/Bebe_Barron/Barron_Circuit.jpg
>>
>>     Any ideas what's going on w/ the zeners in the middle of the ring?
>>     and the following opamp?
>>
>>
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