I replaced the regulator and now have 8.30v output from U4. The original regulator only put out 7.61v. Thankfully I had a used regulator on a parts board from a security system!!! hi hi...
Mike Mike-WE0H wrote: > Has anyone else had a 8v regulator (U4) on their control board show a > lower voltage than it should? Mine shows 7.61v with the board in the > radio or on the bench with a 14v supply connected to the input of that > regulator. All components and soldering look correct. The 5v regulator > is at 5.00v. All functions in the test procedure work as they should > except the AGC voltage couldn't be set to 3.80v because of the 8v buss > being at 7.61v, the AGC voltage changed as it should but was lower than > the 3.80v suggested for setting R1 to. > > Nothing runs hot or smells hot. What do you guys think? Bad regulator or??? > > Many thanks, > Mike > WE0H ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
