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Re: SMPS for B+ ? it works! Rainy Day Project #1

PostPosted: Sat Feb 28, 2015 11:39 am
by Shannon Parks
Image

Re: SMPS for B+ ? it works! Rainy Day Project #1

PostPosted: Sun Mar 01, 2015 8:11 pm
by EWBrown
The 12VDC, 5A brick is for filaments, that should be able to light up ten 13EM7s with current to spare! @= (666) [:)

Re: SMPS for B+ ? it works! Rainy Day Project #1

PostPosted: Sat Mar 14, 2015 3:21 pm
by soundbrigade
How about building your own SMPS?? Using a high switching frequncy will give you a smaller PSU.

What else can I say, but telling you guys that you are crazy ... :o)

On the other hand, we were out looking at the "Irish" people here in Chicago celebrate St Patriks Day, and crazyness seems to be the new black ... *)

There are commersial smaller HV SMPS that can be used for preamps and such, however.

Re: SMPS for B+ ? it works! Rainy Day Project #1

PostPosted: Wed Jun 01, 2016 8:07 pm
by EWBrown
12VDC is for filaments. 12V6s, 12SL7s and 12SN7s are cheaper than their 6V brethren, as are the "14V" loctals.

/ed

Re: SMPS for B+ ? it works! Rainy Day Project #1

PostPosted: Mon Aug 08, 2016 11:44 am
by EWBrown
12VDC for filaments, plenty of current, I'll use 12V filament octal or loctal tubes.
Also could string 6.3VDC filaments, two in series. [:)

Re: SMPS for B+ ? it works! Rainy Day Project #1

PostPosted: Mon Aug 08, 2016 2:18 pm
by Geek
EWBrown wrote:Also could string 6.3VDC filaments, two in series. [:)


Been doing that successfully for years now with my commercial phono pre builds to keep I²R losses down in the umbilical cable to the PSU :))