"Roy J. Tellason" wrote to "Steve Asher" (23 Dec 02  04:06:13)
 --- on the topic of "HVDC Transmission Lines"

 RJT> Still,  I wonder how they get the voltage up there to transmission
 RJT> line levels?

It could be done with diode ladder multipliers. The diodes don't have to
support the whole reverse voltage just the part they are contributing.
Here's an example of a diode ladder multiplier being used:

: 4000 VOLT STUN GUN          .01uf/1kv .01uf/1kv .01uf/1kv .01uf/1kv
: ******************           22        22        22        22
: ZDDDDDDDDDDDDDDDDDDDDDDDD0:0DY{at}DBDDDDBDY{at}DBDDDDBDY{at}DBDDDDBDY{at}DBDDDD?
: 3        6 or 12 volt AC 0:0117ZA?  ZA?  ZA?  ZA?  ZA?  ZA?  ZA?  ZA?
: 3        center-tapped   0:0V  FM5  FM5  FM5  FM5  FM5  FM5  FM5  FM5
: 3        transformer   ZD0:0A  3 3  3 3  3 3  3 3  3 3  3 3  3 3  3 3
: 3C          0.1uf      3 0:0C  3 3  3 3  3 3  3 3  3 3  3 3  3 3  3 3
: {at}DBDDD?B      22 100j  3 0:0   {at}BY22{at}BY  {at}BY22{at}BY  {at}BY22{at}BY  {at}BY22{at}BY
:   3 Q CDDDDDBDY{at}D1111DD3D0:0DDDDEDY{at}DADDDDADY{at}DADDDDADY{at}DADDDDADY{at}DADD
: ZDADDDY     3          3        3.01uf/1kv .01uf/1kv .01uf/1kv .01uf/
: 3E 2N176    1 10       3        3
: 3transistor 1 kj       3        3                           4000 volts
: 3           3          3        3 All 8 diodes are 1N4007   OUTPUT
: +9 to 12    {at}DDDDDDDDDDADDDDDDDDADDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
: volts                             Continuing the series of diodes and
:                                   capacitors will cause an increase
:                                   in the output voltage.


Merry Christmas!

 Mike
 ****

... You mean 15" sparks are SUPPOSED to come out of this thing?!?
--- Blue Wave/DOS v2.30