|11th December 2011, 07:10 PM||#1|
Join Date: Jan 2008
Tubelab SE Using a separate power supply for the MOSFET drains
I'm contemplating using a separate power supply for the mosfet drains in my 45 version of the Tubelab SE. I'm using 2SK3563 mosfets. I have a 230V CT secondary Hammond flat pack transformers (P/N 229B230). It'll do 115V at 100ma or 230V at 50ma.
Is rectifying and smoothing 115V sufficient for a 45 build? Or, put another way, how much drain voltage do I need for the 2SK3563's? The sources are connected to the bias circuit per the schemo.
I'm using the Edcor XPWR-131 power transformer and the rest of the build is per George's parts list.
I'm assuming that I just leave out the jumper between the B+ and DRV B+ pads, and connect the aux power supply to the DRV B+ pad.......
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Separate Power Supply Case||nwboater||Class D||6||17th July 2015 05:48 AM|
|TubeLab SE - power supply||cypher||Tubelab||2||29th July 2011 06:42 PM|
|Tubelab SE build and power supply questions.||Binaural||Tubes / Valves||54||3rd March 2010 04:20 AM|
|Switchable stages with Tubelabís hybrid MOSFET/ 845 SE amp?||rick57||Tubes / Valves||0||5th September 2006 08:56 AM|
|separate chassis power supply||onixuser||Class D||2||4th March 2005 09:42 PM|
|New To Site?||Need Help?|