[sdiy] lisajou on tv

[Grant Richter]

You have to leave the original choke (deflection coils) electrically
connected. Resistors will not work since the high voltage is derived from
the horizontal flyback pulses caused by inductance.

Place another identical choke over tube neck. Insulate original choke from
chassis.

Bear in mind very high voltages inside a TV set which can be lethal.

> From: cris at music-service.nl
> Date: Mon, 07 Apr 2003 08:57:05 +0200
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] lisajou on tv
> 
> This is an other problem that i am dealing with,
> i build in Reaktor vs NordModular a very complex system to make
> lisajoufigures,
> i want to exposure this figures on TV's. I use only the X and Y coils
> (vertical 
> and horizontal deflection coils) of the TV, on this coils i connect my signals
> amplified........
> but it did't work.......
> I have 3 B&O color tv's, (a frend of mine is working for B&O),
> the canon is swithed off if you disconect the deflectioncoils, i mesurend the
> ohmic value of the coils and i connect 2 resistors on the PCB where the
> coils are connected normaly, don't work.......
> i don't have eaven a point in the midle and you cad see that the canon is
> not working, it should work as an oscilloscoope? or not?
> i have the schematics of the TV so if enibudy wants to help i can make a
> scan and send it.....
> cris
> 
>