I have never had any problems with the K1551D1nixie driver ICs. I have some older ones in a ceramic package, plus a few of the newer plastic ones. These ICs seem a wee bit noisier than the old T.I. USA made 74141. In a few cases I had to add some anti-noise caps. across the 4 binary inputs to make them settle down and stop sending garbage back to the counter. It is not much noise nor a very severe problem because the circuit cleared right up when I threw .001 uF to GND on a few bits. Bits 4 and 8 as I recall. Why?...........(who knows), but hey it works. My opinion is that these K155D1 ICs are fine. -Chuck
On Monday, December 8, 2025 at 1:49:09 PM UTC-5 Tony Adams wrote: > I've used thousands of them, in my experience the new black plastic > encapsulated and the original Soviet 'military grade' ceramic packaged > devices are reliable, the original brown plastic ones however caused so > much trouble I only used them in one batch. > > On Mon, Dec 8, 2025 at 6:36 PM 'Oskar' via neonixie-l < > [email protected]> wrote: > >> In my experience, K155ID1s are fairly unreliable. In most defective Nixie >> clocks I have seen, those ICs were the culprit. >> >> /Oskar >> Nicholas Stock schrieb am Montag, 8. Dezember 2025 um 18:41:18 UTC+1: >> >>> Hi folks, according to the internet, these two nixie drivers should be >>> pin-compatible. Is that everyone's experience or are there some subtleties? >>> >>> Cheers, >>> >>> Nick >>> >> -- >> 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, visit >> https://groups.google.com/d/msgid/neonixie-l/2ff5f6f7-4ff2-4393-907e-ae0d9269ef73n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/2ff5f6f7-4ff2-4393-907e-ae0d9269ef73n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- 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, visit https://groups.google.com/d/msgid/neonixie-l/516fe8aa-8c0c-44c0-a24c-2a65d91c4495n%40googlegroups.com.
