Hi Folks, Hoping the group can help. I built an eight 8 clock using 2 savaged 4 digit bedside alarm clocks. I am using a multiplex method to support the display. The multiplex is based on a design provided by David one of this group's members and consists of a 74HC595 SPI 16 shift register and a 74HC245 Octal tri-state transceiver register set in pairs, with 22 ohm resistors in series with the 7 segments plus decimal point, the other pair powers the 8 anode power lines. The system is currently running at 5V from a dedicated DC-DC step down 12V-5V transformer.
While the clock is working I feel that the intensity of the digits varies from one end to the other and the overall brightness could be more intense. So is there a way of increasing the brightness of each LED with a change to the circuit? Thanks for any help you can offer. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5aa7bc81-9453-46b9-9873-caee1022ad45%40googlegroups.com.
