---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 02/10/20: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:01 AM - Re: Charge Pump (Rowland Carson) 2. 03:56 AM - Re: Charge Pump (racerjerry) ________________________________ Message 1 _____________________________________ Time: 03:01:14 AM PST US From: Rowland Carson Subject: Re: AeroElectric-List: Charge Pump On 2020-02-06, at 20:51, Jeff Luckey 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' ... | http://www.rowlandcarson.org.uk | Skype, Twitter: rowland_carson Facebook: Rowland Carson ________________________________ Message 2 _____________________________________ Time: 03:56:11 AM PST US Subject: AeroElectric-List: Re: Charge Pump From: "racerjerry" 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 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.