As the business war on the air is hotting up with so many low-budget airlines dominating the sky, the passengers can now enjoy the best deals. The webguide -...
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overnightdeejay
Nov 11, 2008 1:41 am
hi onno... I was helping a friend clean out his radio room last week, and he rewarded me for my efforts by handing me a plexiglass sheet with (6) B7971's,...
237
Donald Stramock
pharoah094
Nov 26, 2008 4:26 am
Does anyone know the pin-out or have any spec sheets on the RCA DTF104B numitron tube?...
238
John Rehwinkel
jrehwin
Nov 26, 2008 4:32 am
... http://tinyurl.com/5dhtwr – John...
239
Marco Conforto
cagamba
Jan 1, 2009 9:43 pm
Straight to the point: Can we drive IV-4 tubes (VSD) using Smartsockets? I just bought a bunch of them from a Russian seller on eBay and wanted to build an ...
240
fixitsan@...
fixitsan2
Jan 2, 2009 11:58 pm
Hello, and Happy New Year ! There are4 a couple of issues whcih need to be got around to enable the 16F690 driver IC drive IV-4/IV-17's The VFD tubes have two...
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Chris
fixitsan2
Jan 11, 2009 10:34 am
As a result of a few enquiries and to suit my own needs I've been messing about trying to get a smartsocket chip to drive these multisegment tubes. It seems...
242
guus.assmann@...
guusassmann2000
Jan 11, 2009 11:12 am
Hello Chris, For method c you can also use 2 times the 75468 (7 transistors per chip, also in SMD. And additional transistors for the rest. (or 3 times IC,...
243
Quixotic Nixotic
whoop_john
Jan 11, 2009 2:17 pm
... Chris, Farnells have part 1611790, a 24.576MHz surface mount component at £0.192. 10 for £0.147. Farnells have part 1611717, a 24.576MHz a through hole...
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Chris
fixitsan2
Jan 11, 2009 3:51 pm
... IC, giving ... Thanks for the idea, but when I have used Opto's before in nixie clock designs I have found them to be both more expensive than the ...
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Chris
fixitsan2
Jan 11, 2009 4:11 pm
... They're certainly good crystal prices. What I don't like about this MAXIM chip is it's price, I can't seem to find it for less than $3.50 each in large...
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John Rehwinkel
jrehwin
Jan 11, 2009 4:13 pm
... Surplus is your friend. Electronics Goldmine has 24MHz crystals for a dollar apiece. As they're surplus, they may not be the most accurate crystals out...
247
guus.assmann@...
guusassmann2000
Jan 11, 2009 7:00 pm
Wasting power is not good, as a general rule. But in a case like this, it's such a small amount. And one could also say that powering up any smartsocket is a...
248
guus.assmann@...
guusassmann2000
Jan 11, 2009 7:03 pm
Hello Chris, For this, I'll have a look tomorrow. But I guess even a 4N27 or so would do just fine. BR/ Guus...
249
Quixotic Nixotic
whoop_john
Jan 11, 2009 8:24 pm
Does anyone know why the IV-17s are better than the IV-4s? What is the difference, electronically-speaking? John S...
250
Chris
fixitsan2
Jan 11, 2009 8:50 pm
... Sorry John, but the accuracy is important because the crystal is also the timebase for the USART serial port, although I am not sure to what extent a few...
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Chris
fixitsan2
Jan 11, 2009 9:13 pm
... of power.... ... Yeah, but hopefully they won't ever say that ! I've just done some real measurements and had a pleasant surprise. At 24V the long diagonal...
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Chris
fixitsan2
Jan 11, 2009 9:24 pm
... Apparently they live longer, and also draw slightly less current too....
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orubin
Jan 22, 2009 2:28 am
... I JUST saw this John. VERY FUNNY. Can you tell me how you made the tinyurl to do that? There are so many other times I have wanted to do JUST that! :-) ...
254
orubin
Jan 22, 2009 2:34 am
... SIGH! Never mind, I went to the site directly, and IT creates a Tinyurl for you. Never mind, I Googled it. In fact, found a Tinyurl creator for Firefox, so...
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John Rehwinkel
jrehwin
Jan 22, 2009 2:36 am
... Just go to: http://www.letmegooglethatforyou.com/ Type in the search terms, hit the "Google Search" button, and it'll make a link in the text window. That...
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Chris
fixitsan2
Jun 7, 2009 6:58 pm
I want to make it known that I've finally made some progress with the IV-17 version of Smartsocket The device I have on my bench before me consists of 2 IV-17...
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ROBERT KIERONSKI
rnrower
Jun 7, 2009 10:42 pm
Chris, Thanks for the update. I wonder if you have any boards for your B7971 smart sockets. I would be pleased to buy some (approx 8)from you. Robert K...
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Chris
fixitsan2
Jun 7, 2009 11:07 pm
... Robert, unfortunately I only have 4 boards and 4 tubes and I don't envisage buying more tubes at any time. <sigh> Let's see what happens, perhaps other...
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matt mann
overnightdeejay
Jun 8, 2009 12:06 am
chris, Â I have 6 B7971's mounted and wired.... I need driver boards for them. when you have any in stock please let me know. Â Thanks! ... From: Chris...
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Chris
fixitsan2
Jun 8, 2009 9:39 am
If any of the previous board buyers/sellers are watching there are now 22 boards required. I haven't bought boards for a long time, not sure about MOC's. Is...
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Brian P. Poi
bpoi
Jun 8, 2009 2:06 pm
... attract a satisfactory price from board houses. Only 8 more are required to get there. I'd be willing to buy 6 boards if anyone does an order. Brian Poi...
263
Marco Conforto
cagamba
Jun 8, 2009 4:11 pm
Considering we order more than 30, how much do they run for approximately? I'm willing to buy some, between 12 and 20, been thinking of a project with them! ...
264
Chris
fixitsan2
Jun 8, 2009 7:18 pm
... Hi Marco, including your order the total is now over 40. I will need to shop around to look at prices. You had a large batch made up previously, what were...
