Its been awhile since I have been QRV with my 2m-eme station. Four independent problems in my transmission line during the winter kept me off the Moon and then my HVPS acted up. Well it turned out to be a simple problem but it didn't appear that way. My 4kV dropped to 2.8kV without a load. I envisioned all kinds of problems but in the end it was simply a blown HV fuse. It did not blow open but instead went to 16meg-ohm which was enough to drop the HV with very low current being drawn by the HV panel meter. Having no replacement fuse, I decided to remove the HB fuse holder from the HVPS since changing the fuse required removing the 8877 deck from the rack to gain access thru the HVPS top plate which is directly under the amplifier. I will order some more HV fuses from Nebraska sales ($25/ea.) and make an inline HV fuse box which will be much quicker access to replace a fuse. Actually, I have only blown two of these fuses in 8-years of running. How I blew this one is that the 6-dB attenuator that I was using to lower drive to my transverter to keep drive below 50w to the 8877 failed in short resulting in over 100w drive to the 8877. Anode current spiked taking out the HV fuse as it is designed to do. Probably hit over 2kW output! A couple other improvements will make recovery from HV events quicker: I brought the 240vac mains fuses to the front panel of the HVPS and increased them to 20A. And I added a vernier to the 8877 drive input cap. Looks like I got a finer tune on the input as it is taking less drive to reach 1200w. I will be QRV Sunday from about 1400utc to 1700utc (Moonset): 144.116, 1st for CQ and on N0UK logger. Mon> I will be trying to work 6W/PE1L in Senegal very early in my morning. We only have about 30-min common Moon on Monday but this increases on subsequent days. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubususa(a)gmail.com