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Article #2553Re: Encoder tuning knob for amateur radio RX/TX
From: Zoran A. Scepanovic
Date: Fri, 07 May 1999 00:00
Date: Fri, 07 May 1999 00:00
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1771 bytes
Try thinking of using a small DC motor (not brushless!) with some op-amp ... it was a long time when I saw some project for use in an amateur receiver for tuning UP/DOWN Regards, ZASto Russell Shaw wrote in message <372FDB66.5CFCB065@martin.com.au>... >Hi All, > >I am looking for a cheap quadrature encoded control to use as the tuning >knob in an AM/SSB radio transceiver kit. Preferably 100 steps per turn or >more. > >Any ideas? > >-- > >Regards, > Russell, VK3KRS. > >MARTIN COMMUNICATIONS Pty. Ltd >87 Peters Ave. Mulgrave Vic. 3170 >Ph. +61 3 9560 9999 Fx. +61 3 9560 9055 >http://www.martin.com.au > >"Faders and Receivers for New Horizons" > __ __ __ __ __ __ > / \ \ / \ \ / // / MARTIN COMMUNICATIONS > / /\ \\ / /\ \\ / // / Russell Shaw, B.Eng, M.Eng(Research), MIREE > / // \ \/ // \ \/ // / Electronic RnD Engineer >/_//_/ \__/__/ \__/__/ EMAIL: russell@martin.com.au
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 112d1e,ceb67116c6d89c0d X-Google-Attributes: gid112d1e,public X-Google-Thread: 114671,ceb67116c6d89c0d X-Google-Attributes: gid114671,public X-Google-Thread: 107cee,ceb67116c6d89c0d X-Google-Attributes: gid107cee,public X-Google-Thread: 103407,ceb67116c6d89c0d X-Google-Attributes: gid103407,public From: "Zoran A. Scepanovic" <zasto@mail.com> Subject: Re: Encoder tuning knob for amateur radio RX/TX Date: 1999/05/07 Message-ID: <7gt0ah$f4$1@zevs.beotel.net> X-Deja-AN: 474942748 References: <372FDB66.5CFCB065@martin.com.au> X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Organization: ZAS ElMed Reply-To: "Zoran A. Scepanovic" <zasto@beotel.yu> Newsgroups: sci.electronics.design,sci.electronics.misc,aus.electronics,aus.radio.amateur.misc