http://blog.savel.org/2005/08/23/tl494-magic-chip/ Same chaos as in my room or DIY guide for you. Sun, 25 Jul 2010 00:28:45 +0000 hourly 1 http://wordpress.org/?v=3.0 http://blog.savel.org/2005/08/23/tl494-magic-chip/comment-page-1/#comment-23 Savel brain dump in English! » Blog Archive » TL494- Power supply for VFD Wed, 31 Aug 2005 18:43:05 +0000 http://blog.savel.org/2005/08/23/tl494-magic-chip/#comment-23 [...] The main parts are: T1, Q1, L1, D1. T1 is used to drive powerful mosfet. Mosfet is connected in simplified way, so called passive on. It must be driven using totem pole schematics, but who cares if it works. L1 is some inductor from old HP printer (about 50 turns, 1cm height, 0.5 cm width with windings, open inductor). D1 is fast schotky diode from some other device. It is SMD part from Motorola- the device is unknown. (Motorola just loves to encrypt devices…some top secret paranoia). The TL494 is connected in alternative way. It can be connected in typical way described in older posts. [...] [...] The main parts are: T1, Q1, L1, D1. T1 is used to drive powerful mosfet. Mosfet is connected in simplified way, so called passive on. It must be driven using totem pole schematics, but who cares if it works. L1 is some inductor from old HP printer (about 50 turns, 1cm height, 0.5 cm width with windings, open inductor). D1 is fast schotky diode from some other device. It is SMD part from Motorola- the device is unknown. (Motorola just loves to encrypt devices…some top secret paranoia). The TL494 is connected in alternative way. It can be connected in typical way described in older posts. [...]

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