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previous: keith I used the schematic from a tweed P... -- 1/27/2000 4:33 PM

Re: Homebrew tube dist. question

1/27/2000 5:25 PM
Scott Swartz	Re: Homebrew tube dist. question I think the part you are missing here is a fullwave rectifier creates DC that is 1.4 x HALF the primary voltage. If you hook it up like this: The trans secondary leads go to pin 4,6 and the trans CT is grounded. the no load DC created will be 1.4 x half the 500's you quote above. If you use a half wave rectifier like it sounds you are trying to do (using only one of the secondary leads) the no load DC will be the same voltage, but will require more filtering since there are AC pulses at 60 hz in a halfwave, instead of 120 Hz like the fullwave (or a bridge rectifier). This is not recommended. Check out this link for some power supply basics: http://www.ampage.org/htac/TAME1

1/27/2000 5:25 PM

Scott Swartz

Re: Homebrew tube dist. question

I think the part you are missing here is a fullwave rectifier creates DC that is 1.4 x HALF the primary voltage. If you hook it up like this:

The trans secondary leads go to pin 4,6 and the trans CT is grounded.

the no load DC created will be 1.4 x half the 500's you quote above.

If you use a half wave rectifier like it sounds you are trying to do (using only one of the secondary leads) the no load DC will be the same voltage, but will require more filtering since there are AC pulses at 60 hz in a halfwave, instead of 120 Hz like the fullwave (or a bridge rectifier). This is not recommended.

Check out this link for some power supply basics:

http://www.ampage.org/htac/TAME1

Replies:

keith Thanks, Scott, I'll look this up an... -- 1/27/2000 6:01 PM