I built a 6 Volt filament transformer into a small metal box and connected the secondary to a couple of 5-way banana jacks. In addition to the 6 Volt output, I put a 100KΩ pot across the terminals with the wiper connected to a third jack. That way, I can have any voltage from 0 to 6 VAC, avoiding possible damage to sensitive front ends.
Jeremy On Tue, Jul 2, 2019 at 8:00 PM Gerhard Hoffmann <dk...@arcor.de> wrote: > > Am 03.07.19 um 01:25 schrieb Tim Shoppa: > > Jim, most of us are satisfied to use a 6.3VAC filament transformer to > step down from 120VAC and isolate from the power line. > > Exactly. I used an old 6 or 9V AC wall wart and a resistive 1:3 divider > last year when the European grid frequency was low because of some > trouble in the distant south-east. That gave a really stable reading. > > < > > https://www.flickr.com/photos/137684711@N07/38870750440/in/dateposted-public/ > > > > > regards, Gerhard > > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > -- Jeremy Nichols Sent from my iPad 6. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.