[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


More information about the James_Millen_Society mailing list