[HomeBrew] Full wave rectifying a 5v winding
Steven Weber
kd1jv at moose.ncia.net
Sat Jan 14 12:51:44 EST 2006
Wait a minute! Rectifiying the 5 volt winding isn't going to change
anything, except give you less voltage due to the diode drops and ripple on
the cap. What you'd want is a voltage doubler rectifier circuit - but this
will give you too much voltage, though thats a little easier to deal with
than too little.
However, I suspect running the 6 volt filments on 5 volts will work just
fine - and give longer filment life. Also, the fairly light loading of just
two tubes on the filment winding, plus the higher average line voltage we
have today compared to when the transformer was made, might give you a
filment voltage closer to 6 volts anyway.
>> I don't have a 6.3 VAC winding on a nice 310-0-310 VAC 150 mA transformer.
>> But I do have a 5 VAC 2A winding. I would like to "boost" this up to a
72,
Steve, KD1JV
"Melt Solder"
White Mountains of New Hampshire
http://www.qsl.net/kd1jv/
http://kd1jv.qrpradio.com
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