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b1 buffer preamp suitable voltage
b1 buffer preamp suitable voltage
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Old 13th May 2013, 08:16 PM   #1
mass1363 is offline mass1363
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Join Date: Jan 2012
Default b1 buffer preamp suitable voltage

Hello everybody,
I was reading that the suitable voltage for the B1 buffer preamp from Nelson Pass is between 18V and 24V.
I'm wondering if I'll have catastrophic results if I power it with only +15V ...?

Thank for answers
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Old 13th May 2013, 09:16 PM   #2
Zen Mod is online now Zen Mod  Serbia
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b1 buffer preamp suitable voltage
not catastrophic , but thd will rise
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
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Old 14th May 2013, 10:35 AM   #3
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
A 2.2Vac signal will be ~7dB below maximum output. That's still an adequate headroom to help avoid excess distortion.
Normal signals through the B1 will more likely be <<1Vac
regards Andrew T.
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Old 16th May 2013, 06:32 PM   #4
Superstrand is offline Superstrand  United States
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Wink No catastrophe here, except for the dining room

I have run mine with a single nine volt battery as an experiment, no catastrophe. I do run it at 18 volts, though, because that's what papa said to do. Here is a picture of the build, notice the empty Guiness and dinner in the crockpot. (This construction method is not recommended if your spouse is home).
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