High Voltage Logic
Posted: Tue Jul 29, 2003 9:03 pm
I need a way of driving nixie tubes without breaking the bank. Nixie tubes are gas-filled tubes with numbers that run off of high voltage (about 170 volts DC).
<p>Each digit is connected to a pin, and logic chips are typically used to complete the circuit from B+ to ground. When not connected, each pin has around 60 volts. The current drawn when on is no more than 3 milliamps.<p>Does anyone know where I can buy a chip that is cheaper than the $7 NTE replacement for a 74141?
I would really like to avoid discrete transistors, as I have 8 tubes to drive, and I would like to avoid multiplexing.<p>Sources for (relatively) cheap 74141 chips, or new chips that can do the same thing would be greatly appreciated.<p>Thank You
<p>Each digit is connected to a pin, and logic chips are typically used to complete the circuit from B+ to ground. When not connected, each pin has around 60 volts. The current drawn when on is no more than 3 milliamps.<p>Does anyone know where I can buy a chip that is cheaper than the $7 NTE replacement for a 74141?
I would really like to avoid discrete transistors, as I have 8 tubes to drive, and I would like to avoid multiplexing.<p>Sources for (relatively) cheap 74141 chips, or new chips that can do the same thing would be greatly appreciated.<p>Thank You