[JMS] Lambda 28 Woes
ronnie.hull
ronnie.hull at glowbugs.com
Tue Aug 30 12:06:24 EDT 2005
hep me hep me
Katrinia couldn't keep me down, but I'm having other problems down here in
da swamp!!
Okay I modified my Lambda 28 as per Don's article. I am hooking the 12.6vac
transformer up with its secondary going to the 6.5VAC sourch in the Lambda.
I come out of its PRIMARY and hook that to the bridge. On the positive end
of the bridge I connected the negative side of a 22uf 350vdc electrolytic
and the positive side of this electrolytic to the negative side of the
bridge, and common ground.
I'm using a 1800 Ohm resistor that is hooked to the negative side of that
electrolytic going to the two 22v zeners in series with the cathode of the
last zener going to the same common ground.
My voltages are wayyyyyyyyyyyyyy off
starting at the top where don has -65 volts I have -49 ( and it falls off
rapidly to 25 volts and stops there), at the next point where don has
-45 volts I have -1.4 and that last point where don has - 22 volts I have
-0.7 volts.
What have I done wrong here?
I checked the existing 6.5vac transformer in the Lambda and it is actually
6.4 vac and it stays steady.
The output of the backwards 12.6 tranny is 44 volts to the bridge. The
output of the bridge is 49 volts.
can anyone help me shed some light on this?
R
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