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Questions tagged [vacuum-fluorescent]

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Power Supply for VFD Display

I recently ordered a GP1294AI VFD display from Aliexpress. Unfortunately it did not contain the necessary power supply to power the display, but the datasheet did include the necessary schematics for ...
RemiFM's user avatar
  • 43
1 vote
2 answers
354 views

Hacking a vacuum fluorescent display from an old DVD player

I have salvaged this front panel from an old DVD player. It has a VFD and an IR receiver. The board runs on a PT6315 chip. I know the basics of electronics and Arduinos, but I am not an expert. I ...
Rajeev Jeganathan's user avatar
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0 answers
80 views

Vacuum Fluorescent Display (VFD) + Teensy 4.1 (wiring check)

In my current project I would like to control a Vacuum Fluorescent Display (VFD) with my Teensy 4.1. I have made a wiring plan but since I don't have much experience in electronics I would appreciate ...
pentonic's user avatar
2 votes
1 answer
145 views

How to work with `WR` signal; incorrect datasheet for NEC FC40X2EA-AB VFD?

(Caveat: I'm a programmer, not an electronics engineer.) Edit: Fixed a misunderstanding, added better smallest possible sample code. I'm in the process of repurposing an old device containing a 2x40 ...
noughtnaut's user avatar
0 votes
1 answer
174 views

Vacuum fluorescent display: What if you power the filament (cathode) with a high voltage and the segments (anodes) with a low voltage?

This question is asked because it isn't a stupid question when never be asked before. I didn't find anyone who mentioned this or even tried this. What if you power the filament (cathode) of a VFD with ...
Codebeat's user avatar
  • 1,346
2 votes
0 answers
203 views

Vacuum Fluorescent Display Failure

I have a VFD (vacuum fluorescent display) unit from a piece of test equipment that has developed leakage between the anodes (plates). This leakage (~50 kΩ to ~250 kΩ) has been verified after ...
rfdes's user avatar
  • 21
4 votes
2 answers
874 views

Russian к2лн641 VFD (Vacuum Fluorescent Display) driver pin out help

I have recently acquired some IV-3 VFDs (Vacuum Fluorescent Displays) and they came on an old PCB with drivers. The driver is a к2лн641 and have found a datasheet on it with some information, but it ...
Tom's user avatar
  • 95
1 vote
1 answer
246 views

-30V power supply for HTS6520

Story Received a Philips HTS6520 for free however the subwoofer (and remote) is missing, no cables at all, so unable to use it because the sub also provides the power (read on to see what I have done)....
Codebeat's user avatar
  • 1,346
0 votes
2 answers
1k views

Should a VFD be turned off when not in use, as much as possible, or should it be left turned on all the time?

I have bought a Noritake itron vacuum fluorescent display, to use in an Arduino project. A menu with settings will be shown on the display, and the user can interact with it by using some buttons. My ...
LondonNight's user avatar
1 vote
2 answers
1k views

Vacuum Fluorescent Display: What are the benefits of an AC filament driver instead of DC?

Question is already in the title: What is/are the benefit(s) of an AC filament driver instead of DC for VFD displays? It works with DC so why to invest in an AC driver? Anyone?
Codebeat's user avatar
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0 votes
1 answer
3k views

What are these SMD components with 3 leads?

Full resolution link is here I am trying to repair a vacuum fluorescent display module by Futaba model code is M402SD07GS. It is seen that there is no energy on the display and Vcc and GND legs are ...
mehmet's user avatar
  • 1,139
0 votes
1 answer
97 views

How to guarantee "grid-looping clock" is running when dynamically driving VFD tubes

I'm driving old Soviet VFD tubes using Atmel AVR8 processors (e.g. ATmega328 and ATmega1284) and VFD driver chips Microchip HV518/HV5812/HV6810. Some of these tubes can only be driven dynamically, i.e....
Adrian's user avatar
  • 35
2 votes
2 answers
742 views

Circuit for driving 24V VF-Display with Arduino MC. Does this work?

I am trying to operate an IVL2-7/5 vacuum-fluoresecence-display with an Arduino Uno. It is a multiplexed 4 digit clock display that requires a cathode voltage of 2.4V and an anode and grid voltage of ...
JMC's user avatar
  • 143
3 votes
1 answer
2k views

Help driving an old Vacuum Fluorescent Display

I recently salvaged a VFD from scrap, and am currently trying to get it to display light (not worrying about actual numbers/letters yet, just trying to get it to light up). I've read up about these ...
catalogue_number's user avatar
-2 votes
1 answer
891 views

Futaba GP1006B05 VFD pinout [closed]

I have a Futaba GP1006B05 256x64 VFD display. I need the datasheet, I don't know the pinout. The pin connector is 50 pin. Does anyone have the GP1006B05 datasheet?
elektrojo's user avatar
38 votes
3 answers
6k views

What is this suspicious stain under a VFD's glass?

I wanted to give VFDs a try so I ordered a couple of 8x14 segments display modules. They arrived today, but I'm concerned because each has a big black stain in the corner. If it were on an LCD I'd ...
LeFauve's user avatar
  • 503
1 vote
1 answer
1k views

Vacuum Fluorescent Display (VFD) serial connection ~ Debugging Questions

I am attempting to display information on a Futaba Vacuum Fluorescent Display (VFD) (apologies for the google-drive link to the datasheet. I lost the original and couldn't find it again). I'm ...
John Bargman's user avatar
3 votes
4 answers
6k views

Help driving a VFD Display

I managed to pick up a few cheap VFDs (Vacuum Fluoro Displays), but the information about them is scarce. What makes matters worse is that I am a post vacuum tube era child, so my knowledge in the ...
IgorEE's user avatar
  • 513
1 vote
1 answer
118 views

Is it possible to damage a VFD by raising the anode voltage?

Is it possible to cause damage to a vacuum fluorescent display by raising the anode/grid voltage above the recommended level (not the filament voltage)?
3871968's user avatar
  • 889
1 vote
2 answers
1k views

Best way to supply heaters for VFD tube

Building a simple VFD clock with 4x IV-22 tubes. The heaters run at 1 to 1.32v @ 100mA each. Whats the best way to supply power to the heaters? All the heaters need to be in parallel so that their ...
Yarek T's user avatar
  • 219
1 vote
1 answer
2k views

How do I use this VFD from Futaba with an Arduino?

I salvaged this display unit from an old VCR about 20 years ago. Since then, it's been lying in my electronics box. Now I would like to play around with it on an Arduino. I can't find the datasheet ...
Richard C's user avatar
  • 111
5 votes
3 answers
2k views

Switch (Relatively) High Voltage from Logic Level

The Situation: Basically, I would like to switch a load that requires 30v using a switch that cannot have more than 5v across it. More descriptively, I am trying to drive the anode of a VFD segment ...
BoatsBoatsBoats's user avatar
8 votes
1 answer
10k views

How to control a VFD display with Arduino?

I have a Samsung 170L40AA1 VFD display, but no controller. So I wondered if it is possible to use an Arduino to control it instead. I've found the code for controlling an Futaba NA202MD13AA, which I ...
pietervanharen's user avatar