Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Tone Junkie on February 20, 2011, 12:08:43 pm
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Ok so I used my 5 volt tap got a nice 6.2 volts out with full wave bridge and filtering I know how much my omron 5 volt relays use buy there spec,s but.
Here is my question with a full wave bridge does it change the fact that I start with a 3 amp on my 5 volt tap. In other words does it lessen the amperage with a FWB, here is the other part I want to use some LED,s in my switching how do I compute my amperage draw for that.
Sorry just trying to figure out what my boundries are.
googling and reading didnt help me so far but if you have a place for me to start reading please show me were.
Thanks Bill
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As long as your bridge is rated at greater than 3A, you have a full 3A available. 3A @ 5V = 1 huge stack of relays and LED's.
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:rolleyes: May be I'm wrong :rolleyes:
I think that a 3A 5v winding is able to give (3A x 5v) 15W
so if you rectify and go to 6.2v now you have something near (15W / 6.2v) 2.4A
however 2.4A is full enough to act a lot of relais
Kagliostro
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Cool I was wondering if there was some type of formula but no worries because I would probably never use more than 4 relays with 2 LED,s anyway. It would probably only come into play when Im pulling of my heater taps for relays.
Thanks Bill