[hpsdr] Hercules II

g4fre at g4fre.com g4fre at g4fre.com
Sun Jul 25 09:22:09 PDT 2010


I have just got one of the blF177 boards of VK4DD going, makes 300W easily 
80 thro 6m (no interest in 160m). ~3w drive. About to build a 2nd one and 
combine them 

While researching Harris TV amp modules i came across the site of k3hkr 
http://k3hkr.com/HARRIS101.html who recommended HP server 50V 57A psus. I 
got one for $30 and it works fine although as currently built its probably 
not OSHA compliant! 

Dave 

ww2r 

ct1izu writes: 

> ***** High Performance Software Defined Radio Discussion List ***** 
> 
> 
> This design looks interesting using a pair of  BLF177  http://vk4dd.com/
> The side bar links into the forum for more info.
> The devices  seem to be available at reasonable prices * 
> http://www.broadcastconcepts.com/index.php?main_page=product_info&cPath=4& 
> products_id=24 as they are used in commercial,  band 2  fm  pallet amps. 
> The devices are rated at 300w dissipation
> on a pair at 28Mhz and up to 108Mhz on class B fm. 
> 
> Does anbody know if we might modify some of the larger PC switched mode 
> psu for 48V as the DC source?
> Shel CT1IZU 
> 


 1280074929.0


More information about the Hpsdr mailing list