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Re: LF: Automatic variometer circuit

from [Markus Vester] [Permanent Link][Original]
To: <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: Automatic variometer circuit
From: "Markus Vester" <markusvester@aol.com>
Date: Fri, 30 Oct 2015 21:43:54 +0100
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References: <1981852865.20151017122027@chriswilson.tv> <1530BFEB-9BC2-4CA2-A7A3-338629A98202@me.com> <308511169.20151029202607@chriswilson.tv> <56328B1F.2080901@posteo.de> <12510142154.20151030112719@chriswilson.tv> <5633C6F8.4080807@posteo.de>
Reply-to: rsgb_lf_group@blacksheep.org
Sender: owner-rsgb_lf_group@blacksheep.org
> just to prevent the wind-up of the cable, antenna wire, coax
 
, transmitter, key, operator,... take care ;-)
 
73, Markus

From: DK7FC
Sent: Friday, October 30, 2015 8:37 PM
Subject: Re: LF: Automatic variometer circuit

Hi Chris,

My motor draws about 200 mA at 12V. It has about 1 round per 3 seconds i
estimate. Costs are below 10 EUR. You will find something on ebay for
example.
I use end-switches in the construction BTW, see
https://dl.dropboxusercontent.com/u/19882028/LF/variometer%20end%20switches.jpg
just to prevent the wind-up of the cable, antenna wire, coax (would
sound like "crrrrrkftftftftftplingftftftftbuffftftftft...")

73, Stefan
...
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