GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
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 14th March 2019, 10:51 PM #11 dewdrop   diyAudio Member   Join Date: Mar 2004 Location: Singapore I will do that later but need to decouple the wiring from the 2 boards. What is the expected DC resistance? __________________ Ed
 14th March 2019, 11:23 PM #12 dewdrop   diyAudio Member   Join Date: Mar 2004 Location: Singapore Have the 2 boards connected in parallel, I have the DC resistance of 55.5k ohm at the input. Is that correct? __________________ Ed
 15th March 2019, 02:14 AM #13 dewdrop   diyAudio Member   Join Date: Mar 2004 Location: Singapore Ok, we have a 110K resistor across the L and N and if I have 2 boards in parallel, it will be a combined of ~55 Kohms. Assuming if it draws 90mA, wouldn't the power dissipation be huge on these 2 resistors? __________________ Ed
 15th March 2019, 05:14 AM #14 leejh   diyAudio Member   Join Date: Mar 2005 Location: Seoul, Korea Let me in 8 pcs. Thanks
Destroyer OS
diyAudio Member

Join Date: Nov 2005
Location: PNW
Quote:
 Originally Posted by dewdrop Ok, we have a 110K resistor across the L and N and if I have 2 boards in parallel, it will be a combined of ~55 Kohms. Assuming if it draws 90mA, wouldn't the power dissipation be huge on these 2 resistors?
As long as your resistors are in the K range, everything seems fine.

The thing about capacitors is they release the energy they store. So the loss is very small, even if there is some current use.

 16th March 2019, 04:08 AM #16 Destroyer OS   diyAudio Member     Join Date: Nov 2005 Location: PNW Looks like we hit 32. I am going to wait a little bit before collecting, as there’s always someone else interested that misses the initial. But I always print more than the GB amount needed, so there’s more after the first contributors - but people often don’t think so.
 16th March 2019, 05:20 AM #17 dewdrop   diyAudio Member   Join Date: Mar 2004 Location: Singapore What is the purpose of having the 110K resistor across the L and N? Also, isnt 1W low given its across the mains inputs? __________________ Ed
 16th March 2019, 05:53 AM #18 Destroyer OS   diyAudio Member     Join Date: Nov 2005 Location: PNW It’s to discharge the capacitors whenever you disconnect the device. Otherwise they can hold a bit of a snap for you. If you have 8 Fo-Felix’s it’s a pretty good snap. Wattage was calculated. 110k is pretty high resistance.
 16th March 2019, 01:54 PM #19 drpro   diyAudio Member   Join Date: Jan 2014 Location: Nashvegas Jeremy please include me for 4 boards. __________________ I must build. Pass F4s, F6, M2, BA-3 preamp, MoFo, ImPasse preamp, Whammy headamp, Aksa's Lender preamp, Salas DCG3 headphone/preamp, XRK971 PCA & DCA headamp Bruno Putzey's balanced preamp, Doug Self preamp, Pete Millet Korg headamp.
 16th March 2019, 04:33 PM #20 MtBiker   diyAudio Member   Join Date: Jul 2002 Location: Northern Virginia I would like 6 boards please.

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