Rainer, I presume your Power Supply has a fan which may absorb 2 to 4 Watt. Given the low consumption of Thunderbolt, you could try disconnecting the fan to save a few Watts. The Meanwell T-30B has no fan. I' ve not yet measured its idling consumption (no load), but to answer your question it should be added to the 3.3 W mentioned by Werner.
73, Antonio I8IOV > My Thunderbold takes following power (incl. active antenna): > > +12V 160mA -> 1.92W > +5V 256mA -> 1.28W > -12V 2.95mA -> 35mW > > total power 3.3W > > But note that the +12V takes a start current up to 750mA for 3 minutes! > > > Werner > > > My Thunderbolt has arrived yesterday - I think the source is well known > > here - and works smoothly. The price was tolerable, thanks to the ever > > weekening US-Dollar. > > > > As power consumption is an issue nowadays, has anyone measured it > > already with one of the discussed Meanwell T-30B? > > > > For the moment it is running on an old, but unused Seasonic AT-style > > computer powersupply. Consumption is total 18W after heating-up. From my > > experience most switching power supplys have an idle consumption from > > 8-10 Watt, so I don't think I can save a lot buying another powersupply. > > > > Thanks in adavance and 73, > > > > Rainer (DG2DBM) _______________________________________________ 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.