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Old 20th May 2014, 02:11 PM   #1
cleonjr is offline cleonjr  United States
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Default is this possible with a 12vac wallwart

hey any one have an Idea How I can get a 12+v-0-12-v to work with a 12vac walwart,i can splice if I need to.it is a chinese preamp,one of the toys I play with fairly cheap so no big deal,or sould I just get anoter preamp that does 12v neg. and pos.
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Old 20th May 2014, 04:13 PM   #2
cleonjr is offline cleonjr  United States
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ok was adviced to forget about that way,told to try 2 A23 batteries out.been wanting to find out anyway so here to that.
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Old 20th May 2014, 07:09 PM   #3
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Hello,

Just use halfwave rectifiers rather than a bridge.
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Old 20th May 2014, 07:20 PM   #4
cleonjr is offline cleonjr  United States
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Quote:
Originally Posted by myhrrhleine View Post
Hello,

Just use halfwave rectifiers rather than a bridge.
Thank you for the replie I have no knowledge of such as you speak,I will wait and purchase the correct supply.but my interest in pure dc supplies in the form of batteries is sparked.I would like to build a Battery bank with 12v and 24v output and a slow charge circuit.so it will charge as I am using it.
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Old 20th May 2014, 09:34 PM   #5
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Here is a half wave from AC source supply.
Click the image to open in full size.
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Old 21st May 2014, 12:50 AM   #6
cleonjr is offline cleonjr  United States
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umm I am sort of getting the half load theory,but I have no idea of placement and knowledge of what type,since it is brand new too me.but with patience will you instruct me,more in a laymans terms,I am a fresh nob for sure but eager to learn,for Sure.
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