Today's Message Index:
----------------------
 
     1. 03:01 AM - Re: Charge Pump (Rowland Carson)
     2. 03:56 AM - Re: Charge Pump (racerjerry)
 
 
 

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Time: 
03:01:14 AM PST US
From: 
Rowland Carson <rowlandcarson@gmail.com>
Subject: 
Re: Charge Pump
      
      On 2020-02-06, at 20:51, Jeff Luckey <jluckey@pacbell.net> wrote:
      
      > I'm wondering how difficult it would be to build a 14-to-28 volt 
      charge-pump power supply.  It would need to supply about 7 amps.
      
      
      Jeff - I went through this process some time back for a 24V gyro, which 
      had a much lower current demand - see my journal page:
      
      http://www.rowlandcarson.org.uk/aviation/europa_435/24vconverter.php
      
      Here attached as a PDF is the process I used to choose component values 
      - it may be of some use to you. And my spare components are still 
      available, should you want any of them, although postage to USA might be 
      pricey.
      
      in friendship
      
      Rowland
      
      | Rowland Carson          ... that's Rowland with a 'w' ...
      | <rowlandcarson@gmail.com>            http://www.rowlandcarson.org.uk
      | Skype, Twitter: rowland_carson      Facebook: Rowland Carson
      

Message 2


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Time: 
03:56:11 AM PST US
Subject: 
Re: Charge Pump
From: 
"racerjerry" <gnking2@verizon.net>
      
      
      1   KX-155 is an OLD radio
      2   KX-155 digital displays (very common failure) are no longer available as a
      replacement part
      3   Cheaper options are available
      4   VOR stations are rapidly disappearing because of GPS navigation - forget VOR
      5   A good hand-held radio connected to an external antenna will work just as good
      as panel mount
      
      LOW BUDGET JERRY
      
      --------
      Jerry King
      
      
      Read this topic online here:
      
      http://forums.matronics.com/viewtopic.php?p=494735#494735
      
      








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