[JMS] Lambda 28

[ronnie.hull]

Got my Lambda 28 P/S yesterday and started modifying it today to provide all 
the low voltages as per Don's mods at his shack.

Don I have a question. Looking at your schematic, how are you deriving the 
negative voltages? Shouldn't you have to switch the leads coming off the 
Bridge? Coming off the positive end of the bridge, to the positive side of 
the  22mf cap, will give you +68vdc..   unless I'm reading something wrong 
there.

anyway, I had to order a 1mh choke and a 5vdc relay and should have them on 
monday, so I can put the hv sense circuit in then. I have a HP 0-500vdc bench 
supply I can use to test the hv sensing circuit.

Anyway, when I get this done, all that will be lacking is the HV Supply and 
finishing up the modulator front panel

getting closer y'all !!

73's

Ronnie