Re[2]: LF: Automatic variometer circuit

[Chris Wilson <chris@chriswilson.tv>]

Hello Stefan,

Friday, October 30, 2015

Thanks  for the detailed info, and thanks to Andy `GNT for the info re
the  caps. I will order the I/C's for this circuit, and I have ordered
a  2  RPM  reduction  drive motor and some micro switches for the limit
switches, so will be giving this a go! Much appreciated.


> 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








-- 
Best regards,
 Chris                            mailto:chris@chriswilson.tv