How Does that Work Robert? I mean why out of phase? -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Robert Atkinson Sent: Sunday, 7 July 2013 12:57 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] HP 5370B dropping mains voltage
Hi Marki, Dropping the mains voltage is easy. Get a mains to low voltage transformer. Connect the primary across the mains and the secondary in series opposition (out of phase) with the mains supply. Foar example a 100VA 12V transformer will drop your mains to just under 238V with a maximum load of 8A (the current rating of the secondary). HTH, Robert G8RPI. ________________________________ From: Mark C. Stephens <ma...@non-stop.com.au> To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Sent: Saturday, 6 July 2013, 13:25 Subject: Re: [time-nuts] HP 5370B Leds pulsing slowly, buttons selecting normally, PB ... Hi Nigel, The only screw type electro can find is 29000uf@10V. it's the same dimensions. Should I risk the strain on the rectifiers (another 10Kuf is rather a lot)? Without this timer I am dead in the water so I need to do the right thing here... That's why I posted on the Agilent group too, I need to be sure that I do the right thing! By the way, the failed electro measures 39uf :) I reckon, the line voltage here is 250v and the equipment is set for 240V, that extra 10V on the mains is why I am having so much equipment failure. Also the Heat sink on the 5370B got so hot I mounted a 5" fan across it to keep it at a respectable temperature. How can I drop the Mains to 240V, I have a boat load of gear that needs to be powered concurrently. (8566A, 8568B, 3585A, 5335A, 5370B, 8901A, etc, powered on together) we are starting to talk some serious current there. -marki -----Original Message----- _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
