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Re: PIcaxe 08M to 74141 problem
Please post your schematic. -Adam
By Adam Jacobs <jacobs.adam@...> · #44456 ·
Re: meter clock project
Maybe I am referring to one of the Forbes ! The EPUT was an old tube device by Beckman I think. Was a big rack-mount thing with neon lamps behind a mask, or later interfaced this to nixies.
By Steven Arangolord <macguyver50@...> · #44455 ·
Re: NEO-5000 / Alphanumeric B5971 Giveaway
Take a look at this one, it's very similar to what I see: h
By "A.J." <a.j.franzman@...> · #44453 ·
Re: NEO-5000 / Alphanumeric B5971 Giveaway
OK, you caught me. I am run
By "A.J." <a.j.franzman@...> · #44454 ·
Re: meter clock project
Unless you're referring to the nixie display, I never had a tube-based counter. The unit, which I still have, is an H-P 5221B "Universal Counter" that can measure frequency or simply count pulses (I
By "A.J." <a.j.franzman@...> · #44452 ·
Re: PIcaxe 08M to 74141 problem
Hi Shane, I think that your problem is most likely one of two things: 1) Something is wrong with your output routine for pin 4. Different microcontrollers will have different pin setups. Read through
By Adam Jacobs <jacobs.adam@...> · #44451 ·
Re: PIcaxe 08M to 74141 problem
I added a LED from pin 4 to ground to test the circuit. 8 and 9 now work, so i suspect the Picaxe I am using is supplying an overvoltage, about 2.3V too much. Anyone care to confirm? Shane
By "mimewar" <mimewar@...> · #44450 ·
Re: meter clock project
I got at least two nixie tube counters from university lab clearouts, which seems to be able to do that.. Dan
By "Dan Harboe Burer" <dhb@...> · #44443 ·
Re: meter clock project
Those types of counters do exist, and go way back to the nixie days. I got one. Its a CMC (not near it, so I don't have the model number), and its a 'universal' counter, that does frequency, period,
By "threeneurons" <threeneurons@...> · #44442 ·
Re: NEO-5000 / Alphanumeric B5971 Giveaway
Hello- I remember you saying that you had problems with that once before. What browser & OS are you using? I'm trying to hunt down these bugs and I can't seem to reproduce that one :-/ I ran it
By "Brian Stuckey" <brian@...> · #44449 ·
Re: meter clock project
For me it's just the fun to use discrete components and to avoid software (may be the difference between you and me ;-) ). To me a ?P in a nixie or meter clock is the same as a quartz or DCF clocwork
By "Tidak Ada" <offline@...> · #44448 ·
Re: NEO-5000 / Alphanumeric B5971 Giveaway
Are you using IE older than ver. 7 or an other browser pretending to be IE? That page doesn't work with them. The prompt window indeed redirects to chrome regardless of the button pressed. Bad
By "Marcin" <mr.adamski@...> · #44447 ·
Re: meter clock project
My NIXIE Ballentine 5700A does not have any functions other than counting but some later counters have totalisation and period measurement. Steve -- Steve Rooke - ZL3TUV &
By Steve Rooke <sar10538@...> · #44446 ·
Re: meter clock project
Still have that tube EPUT meter ? or was it dissected for a clock already ? [Non-text portions of this message have been removed]
By Steven Arangolord <macguyver50@...> · #44445 ·
Re: NEO-5000 / Alphanumeric B5971 Giveaway
I can't even view that page. First it gives me a popup asking me permission to download temporary fonts, then it gives me a script popup ordering me to "Get a new browser!", then it redirects me to
By "A.J." <a.j.franzman@...> · #44441 ·
Re: PIcaxe 08M to 74141 problem
[edited by A.J. - please trim quoted material] <snip> Have you manually checked (by tying the pins to VCC and GND) that your 74141 will actually produce 8 and 9? [Non-text portions of this message
By Bill Esposito <thejbw@...> · #44444 ·
Re: meter clock project
<snip> I'm still waiting for a previous, similar project discussed here a few times to come to fruition. Rather than using a frequency counter, it would use one of the older digital event counters and
By "A.J." <a.j.franzman@...> · #44440 ·
PIcaxe 08M to 74141 problem
I had a working one tube counter, a simple 0-9. I was using the Basic Stamp board. I moved to a Picaxe 08M, and now, it won't count past 7. I goes 0,1,2,3,4,5,6,7, dark, dark, 0,1,2,3,4... Anyone have
By "mimewar" <mimewar@...> · #44439 ·
Nuts and Volts
The kit site http://www.techkits.com/ got a call-out in Nuts and Volts magazine in the TECHknowledgey column.
By "The Fool" <unmitigated_fool@...> · #44437 ·
IN-12 in Eagle?
Does anyone have any experience creating or using an IN-12 in eaglecad? I found the russian-nixies.lbr which includes an IN-12 part and claims to be compatible with the SK-136 socket..I'm skeptical,
By "kyn781" <jacobs.adam@...> · #44438 ·