Fw: [sdiy] Passive Ring Modulator

[René Schmitz]

Some nice ringmodulator circuits. Especially picture 40 b, leads to 
a transformerless implementation.

Cheers,
 René

>Reply-To: <lsh at wo.cz>
>From: "Jaroslav Lukesh" <lukesh at k-net.cz>
>To: "René Schmitz" <uzs159 at uni-bonn.de>
>Subject: Fw: [sdiy] Passive Ring Modulator
>Date: Thu, 18 Jul 2002 20:57:15 +0200
>X-FeelingPriority: Normal
>X-Mailer: Muj vlastni Mail klient 1.00     
>
>There I was post, but my mails does not arrive to synth-diy. Try these.
>
>It is very little known ringmod solutions (and very easy).
>
>Regards JL.
>
>----------
>| Odesílatel: Jaroslav Lukesh <lukesh at k-net.cz>
>| Komu: John L Marshall <john.l.marshall at gte.net>; patchell
><patchell at silcom.com>; synth-diy at dropmix.xs4all.nl
>| Pøedmìt: Re: [sdiy] Passive Ring Modulator
>| Datum: 15. èervence 2002 14:27
>| 
>| I have problem with post messages to the list, I dont see any my
>messages.
>| 
>| So please repost them to synth-diy, please if you dont have this message
>| twice.
>| 
>| In attachment is schematic from one very old radio book with ringmod only
>| with resistors+diodes, without trafo.
>| 
>| Here are two method - ring mod and cross mod, both have same function,
>but
>| different design.
>| 
>| So let see attachment.
>| 
>| Regards
>| 
>|              Jaroslav Lukesh
>| ------------------------------------------------------------------------
>|           "One world, one web, one program"  -- Microsoft promotional ad
>|           "Ein Volk, ein Reich, ein Fuehrer" -- Adolf Hitler
>| ------------------------------------------------------------------------
>| Kill a man and you're a murderer. Kill thousands and you are a dictator.
>|            Kill nations and you are the U.S. president!
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>| 
>| ----------
>| | Odesílatel: John L Marshall <john.l.marshall at gte.net>
>| | Komu: patchell <patchell at silcom.com>; synth-diy at dropmix.xs4all.nl
>| | Pøedmìt: Re: [sdiy] Passive Ring Modulator
>| | Datum: 13. èervence 2002 17:37
>| | 
>| | If opamps are used, might as well replace the diodes with a 1495 or
>1496.
>| 
>| 
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uzs159 at uni-bonn.de
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