neon indicators

[danial stocks]

>Hi Ken, have you ever seen one of paia's tube preamps?
>They use a 4049 inverter powered voltage tripler that
>gives up about +40V from a +12Vsupply . The current
>is low but you wouldn't need that much for neons. You
>might be able to add another stage to the voltage tripler.
>If it works it would give you about +55-60V.
>
>Tom

Yeh you can add up more stages quite easily... 555 is also good in this app, 
can source quite a bit of current out of it.. one chip osc/driver... bear in 
mind tho that if you add loads of stages then the load regulation really 
sux.. it gets to a point where it is no good to add more stages as the vtg 
drops even more for the same current.. mess abt a bit with some caps and 
diodes and stuff anyway.. could be fun or at least waste some time..?
Cheers,
Dan
_____________________________________________________________________________________
Get more from the Web.  FREE MSN Explorer download : http://explorer.msn.com