[amsat-bb] Re: Linear vs. switching and HV DC

2011-02-18 Thread Dee
Only thing I have to say is that Switching types are much lighter and are more transportable. I have owned big bruiser linears and they work OK-just find a sturdy shelf to put them on. If your requirement is 25Amps, get a 35Amp unit.(switching) Best to run cooler than at load. Good luck on the

[amsat-bb] Re: Linear vs. switching and HV DC

2011-02-18 Thread Edward R. Cole
At 10:54 AM 2/18/2011, Bob Bruninga wrote: Is there a Amsat BB favorite between switching and linear [power supplies]? I won't speak to noise, which is the only potential issue with switching power supplies, but other than that, I am writing an article for QST that points out how the world of

[amsat-bb] Re: Linear vs. switching and HV DC

2011-02-18 Thread Vince Fiscus, KB7ADL
At 12:01 PM 2/18/2011 -0900, Edward R. Cole kl...@acsalaska.net wrote: I am rebuilding my 4.2kV PS for the 2m-8877. That'll get you into AO-51. ;-) I was 14 years old when working on my DX-35 with 850vdc on the 6146 plate. I agree that many hams these days aren't not trained to handle

[amsat-bb] Re: Linear vs. switching and HV DC

2011-02-18 Thread Edward R. Cole
At 12:26 PM 2/18/2011, Vince Fiscus, KB7ADL wrote: At 12:01 PM 2/18/2011 -0900, Edward R. Cole kl...@acsalaska.net wrote: I am rebuilding my 4.2kV PS for the 2m-8877. That'll get you into AO-51. ;-) Not me! I'm not getting the blame for melting the AO-51 receiver. I was 14 years old when