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  #31  
Old 02-18-2012, 01:27 AM
mbates14 mbates14 is offline
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Oh. I meant gone from "stock" Meaning you cant purchase them anymore.

I guess i got mine while i could. shoulda got more.

Here is a youtube video of mine when I built a breadboard based VFD controller that ran off the PC parallel port back in 2006 i think it was.

http://www.youtube.com/watch?v=D_U-Fb5F-Ww

Last edited by mbates14; 02-18-2012 at 01:37 AM.
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  #32  
Old 02-18-2012, 01:48 PM
mbates14 mbates14 is offline
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Here is the FIP display I was referring to.
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  #33  
Old 02-18-2012, 01:49 PM
mbates14 mbates14 is offline
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Here is pretty much my entire collection of VFDs. There are a few I missed which I will post later, mainly the 50 or so Soviet-era Russian VU meters.





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  #34  
Old 02-18-2012, 01:52 PM
mbates14 mbates14 is offline
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some more of them










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  #35  
Old 02-18-2012, 01:52 PM
mbates14 mbates14 is offline
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And the last of them. This is a large collection. lol.








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  #36  
Old 02-19-2012, 05:15 AM
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Quote:
Originally Posted by mbates14 View Post
Here is the FIP display I was referring to.
http://www.audiokarma.org/forums/sho...d.php?t=420169
philips-dcc900http://www.dutchaudioclassics.nl/phi..._dcc_recorder/

AND i haw dream to mod my VCR grundig vs220
with
=
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Last edited by Visual; 02-19-2012 at 06:22 AM.
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  #37  
Old 02-19-2012, 09:43 PM
mbates14 mbates14 is offline
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Here are the few that I forgot:

the graphics VFD was a chip-on-glass one that I had gotten, no datasheet or pinout available, so i had to reverse engineer it myself. Although with the ghosting, I never did get too much further with it. My guess was it was a 3.3V VFD that I was driving with 5V.
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  #38  
Old 02-19-2012, 09:45 PM
mbates14 mbates14 is offline
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Here is the 50+ russian VFDs that I had gotten.

Shown is the new control board I had developed for them, So i can control the tubes digitally. Unfortunately the project was sidelined becuase I used 2 ICs that are no longer available. the LM9022 and A6810.
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File Type: jpg DSC00054.jpg (59.4 KB, 17 views)
File Type: jpg DSC00055.jpg (56.1 KB, 10 views)
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  #39  
Old 02-19-2012, 09:47 PM
mbates14 mbates14 is offline
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Oh, and I cannot forget this gem:

Here is a set of GM VFDs that I re-purposed for use in a golf cart, digital cluster. It worked until the rain finally got it. lol.
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File Type: jpg DSC00375.jpg (108.3 KB, 12 views)
File Type: jpg DSC00376.jpg (95.6 KB, 25 views)
File Type: jpg DSC00382.jpg (119.8 KB, 20 views)
File Type: jpg DSC00384.jpg (112.9 KB, 17 views)
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  #40  
Old 02-21-2012, 11:45 PM
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http://www.audiokarma.org/forums/sho...d.php?t=420169
1987-8
GOLDEN AGES OF VFD HI-FI UNITS

i`m fanatically impression-ed of TV icons on VCR displays this is my tread-
http://vintageelectronics.betamaxcol...cr-scans/page8

FOR COLOR SYSTEM MAC;NTSC 3.58;4.46;ME SECAM NM PAL
TV-I,BG;BS\BROADCAST SATELLITE\
SOUND-NICAM;SAP;STEREO;DUAL
TV FREQUENCY
S-VPS;PDC;VDS;TXT

ON THE SAME TIME ON VFD+LEVEL METER+S.A./SPECTRUM ANALIZER\+WEEKLY DAYS+DEW
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Last edited by Visual; 02-27-2012 at 05:01 AM.
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  #41  
Old 07-22-2012, 07:14 PM
neocyke neocyke is offline
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Busted?

Hiya guys, I'm neo, and new. Seems like you guys know a lot about VFDs and the workings of one. I have a VFD from my bike which has no display at all. Initially, I though it was a broken solder point (now fixed) which wasn't driving power to it. However, after some dismantling and getting to the display it self, I *think* the display is busted. Seems like there's "burn marks" inside the display.
Not sure if that's the case, so, need some help verifying it.

From what I can gather after poking a multimeter at it, the VFD is getting power, it even makes this.. well, kinda discharging sound when the ignition is turned on. None of the solder points seem broken, cracked or otherwise unusable. On the PCB I see test points labelled 5v, Anode & GND. Probing with the tester reveals that there's no breaks in the circuitry. So, I'm guessing it's the tube. The two "burn marks" on the left of the tube in the picture is what's got me pretty sure.. well, sure as one can get anyway.

Appreciate if you guys could help me confirm this. If it's busted, I'm pretty sure there's no way to fix it short of replacing the tube itself... So, yeah.. anything you guys got.. And thanks

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  #42  
Old 07-22-2012, 10:29 PM
mbates14 mbates14 is offline
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Nope, that tube is perfectly fine. If those "getters" were white, then I would worry. but they are not. they are normal color.

the VFD is fine, your problem is in the circuitry. your missing the filiment voltage, or anode voltage, or the VFD driver IC is bad. one of the 3.

take your pick .
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  #43  
Old 07-22-2012, 10:40 PM
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I would suspect an electrolytic capacitor (or more) in a DC-DC converter circuit to run the VFD from 12V could well be at fault. Not too uncommon for capacitors to fail and displays go dim or out completely.
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  #44  
Old 07-23-2012, 02:09 PM
neocyke neocyke is offline
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Thanks for the feedback guys. Yeah, I did some more reading on VFDs yesterday and apparently those getters aren't really burn marks, they're part of the manufacturing process (of course you guys would already know this, but new to me, heh)

It seems now I'll need to do a lot more probing. A whole lot really. The tube is mounted on a PCB which is connected to yet another PCB via 2 sockets, so tracing is gonna be a major pain. But at least now I have some ideas on what I should be looking for.

Thanks again. Really appreciate it. I'll post again soon once done with all the probing.. -sigh-

-K
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  #45  
Old 07-23-2012, 09:06 PM
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But wait, there's more.

A VFD is a tube and can be used as a Triode. There's a www site showing it off.

A video of an experiment:
http://www.youtube.com/watch?v=aiszksJs9C8

I hope this will enrich your VFD interest.
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