(ET) Solid state controls

[wilbett earthlink net]

Here's a request to all who may have some information on it. I want to 
make some
electrical improvements to my E12 which I think most Elek-trac owners 
would also
want. These are things GE would probably have done if they'd had today's
technology in 1970:

1. A solid state speed control. This could supply 3 discrete speeds as 
now, or
with more extensive wiring changes it could give smooth continuous 
infinitely
variable speed change. Relays could be eliminated.

2. LCD voltage readouts (bar type, where the length of the bar is 
proportional to
volts) for each battery. One cheap variety is used on the packaging of 
small
throw-a-way batteries ( sizes D, AAA, etc.). I envision a small 6-bar 
array on
the dash. It would supply a lot of info: individual battery voltage in 
comparison
with the other 5, load and no-load and during charging. A 7th could 
indicate
total voltage of the six batteries. Bad cables and terminal connections 
would be
more obvious. These could be always connected since very little current is 
drawn.
It would replace the so-called fuel gage.

I'd like to hear some thoughts and suggestions and parts source references.

Thanks.....Bill Alburty