[Milsurplus] DC to DC Converter Comments

[Jim Whartenby]

Using search term "DC-AC Converter  150W Inverter" there are over 300 hits.  Seem to be two physical sizes with either barrier terminal strips or solder terminals.  All seem to be 12 volt input, 20kHz switching frequency with several different voltage taps from 110 to 220+ volts ac.  Some have a choice of 200 and 220 volts which seems to be a natural selection for the BC-342 dynamotor replacement.Jim
I wonder why people argue over the 10% of their differences and ignore the 90% they agree on? 

    On Saturday, March 9, 2019, 2:16:23 PM CST, Jim Whartenby <antqradio at sbcglobal.net> wrote:  
 
 Bingo!eBay item # 173491509283Jim
I wonder why people argue over the 10% of their differences and ignore the 90% they agree on? 

    On Saturday, March 9, 2019, 1:48:08 PM CST, B. Smith <smithab11 at comcast.net> wrote:  
 
 There have been several versions on ePay. Look for DC to AC Converter 
Inverter etc.

https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=TrintDC+12V+to+AC+110V+220V+150W+Converter+Inverter+Step+Up+Boost+Board+Transformerec+travel+clock&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=Trintec+travel+clock&LH_TitleDesc=0

The listings usually have all the voltage taps listed. These are AC 
boards and need a rectifier circuit, filtering etc attached out board.  
I prefer to purchase a board that has the heat sinks attached.
And before the email starts again - - I am a ex Heavy Transport Pilot 
not an engineer.

73,
k4che

On 3/9/2019 1:17 PM, Al Klase wrote:
> On 3/8/2019 5:13 PM, B. Smith wrote:
>>
>> There are a couple of versions of the converters that offer isolation 
>> between the B minus output and A minus input....
>>
> Breck,
>
> Can you help us identify these?
>
> Al
>
> -- 
> Al Klase – N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
>
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