Apr 30, 2016 magic eye kit from ebay, schematic replacing the driver with an opamp i had some projects in mind, and i knew that i wanted to be able to drive the tube with positive lowvoltage signals, for example from a microprocessorcontrolled digital to analog converter. Here is stereogram magic eye picture created by easy stereogram builder. You bias the cathode at 814v, depending on the tube chosen. But if you just want to lay out a 3 tube regenerative, or a 2 or 3 tube mopa, or post that vfo schematic to your site, tubepad is about the easiest way to go. The tube illuminates as a charming indicator for all tube and vintage lovers. The whole circuit, excluding the power supply, fit directly beneath the prehistoric y8a base. The tester uses an eye tube sometimes called a magic eye tube as an indicator. These parts are very small and can be mounted by perfboard, by tiepoint bracket or even left hanging in the air if properly insulated. Amphenol magic eye assembly for 6 prong tubes, copper finish new in the box. Em88 may not be too far off em87 going by the pinout schematic in the latter datasheet. Sparkswithington uses this tube just for a very few models about 1934 like the model 6, model 83 and model 104. But if you just want to lay out a 3tube regenerative, or a 2 or 3 tube mopa, or post that vfo schematic to your site, tubepad is about the easiest way to go. An interesting cousin to the crt is the cateye or magiceye indicator tube. It usually glows bright green, occasionally yellow in some very old types, e.
We are not beginning with the sounders, galvanometers etc. If you want to lay out a large, 15 tube complex project, yeah, try a cad program. A magic eye tube is an old device that was originally used to indicate how well a radio was tuned to a specific station. A one tube radio receiver using a magic eye tube i was recently asked by a reader and amateur radio operator from brazil if i had a circuit for a one tube receiver using a magic eye tube. Hhscott vacuum tubes magic eye tuning indicator overview. The 6e1p electronray valve has been designed to give visual indication of resonance in radio receivers for correct tuning.
You can see the tube light dancing with your audio signal. I did find such an article online called build the cyclops which seemed to be exactly what he was looking for. The 6e1p 6br5 em80 magic eye and other indicator tubes. Essentially, this tube is a voltagemeasuring device with a display resembling a glowing green ring. The software can communicate with almost any nmea0183 compatible gps or rtk receiver to retrieve your current position and height, and show it on one of the support raster or vector maps. When selecting a tube its important to keep in mind the required filamentheater voltage and current, as youll have to make up a battery to provide the required voltage. I have a tuning tube socket as well cannibalised from a donor chassis. Jul 08, 2016 heres the schematic of the revised dual magic eye tube board. The luminous disk of 6e5 has a single line of shadow that passes 90 degrees, no signal received.
The magic eye vu indicator using vacuum tube gadgetronicx. Along the way, i decided it was really cumbersome to have to deal with the opamp boards and the wiring between the opamp boards and the magic eye tube boards, so i redesigned the magic eye tube boards to include the opamps. The psu circuit, basically employs a 555 timer to set a stable oscillation frequency for the mosfet, which in turn uses the property of inductors, that whenever an abrupt change of current occurs. We added development space to incorporate your own input supply on one board. Although this tube would work in most replacement situations for the 6xx tubes, in terms of operating characteristics particularly for the 6u5, it does have a couple of major exceptions. The target is partially illuminated with the exception of the shadow area, which varies in size and shape depending on the signal applied to the tube. Magic eye kit from ebay, schematic replacing the driver with an opamp i had some projects in mind, and i knew that i wanted to be able to drive the tube with positive lowvoltage signals, for example from a microprocessorcontrolled digital to analog converter. A magic eye tube or tuning indicator, in technical literature called an electronray indicator tube, is a vacuum tube which gives a visual indication of the amplitude of an electronic signal, such as an audio output, radiofrequency signal strength, or other functions. Perfect for tube circuits, magic eye tubes, and nixie tube projects. One magic eye works in a similar way to a vfd vacuum florescent display, the dm70 dm71. Some sets use an electronray tuningmagic eye tube to aid in tuning the set exactly to the station. I found this basic schematic for using a magic eye tube as a vu meter although it shows an em87. The tool provides linking and synchronising of elements between schematic drawings and families in the model, which enables bidirectional data exchange to ensure that the required data is consistent throughout the project.
New listing strong 6n5 magic eye vacuum tube new old stock tested. For those of you who still have old computers running windows xp 32bit or any other windows 32bit os, i have setup the download availability of my old old standards. The eye tube gives a visual indication of when the receiver is properly tuned to the signal being received. Ive wanted to try building a tube radio for a while, so heres an instructable on how i did it.
The circuit of magic eye has been redesigned overall. How to decode stereogram by photoshop useful software tips. Sometime late in 2010 i seem to have come to the conclusion that my substantial collection of fluorescent, electroluminescent, and plasmadischarge vacuum display tubes was insufficiently dangerous or exotic, so i. For an input from another signal source, a preamp stage with a bc171 transistor a mosfet would be a better choice for high input impedance, is needed. Jan 14, 20 an impressive piece of work that would look amazing next to a nice tube stereo system. Magic eye software software free download magic eye. Magic eye can be used as an audio level indicator or a vu meter. Most have a builtin triode to provide enough gain for the image portion of the tube. A magic eye tube is an electronic vacuum tube that provides visual indication, usually in the form of green light, on an area called the targetinside the tube.
All you need is a 250v and afilament supply voltage. A brief discussion follows, explaining and describing the uses of tubepad for your consideration. Magic eye vu meter im making a standalone stereo vu meter from a pair of surplus magic eye vacuum tube signal level indicators. The tool provides linking and synchronising of elements between schematic drawings and families in the model, which enables bidirectional data exchange to ensure that the required data is consistent. You can use it seperately or combine it with your devices, which is very useful and beautiful. Is this possibly due to a weak tube or is the problem more likely to be due to the quality of the signal the tube is monitoring. Magic eye tube 6e2 em84 board for low level full kit. This is particularly useful with expensive or rare eye tubes, like the 6t5 that was used in late 1930s zenith consoles. I used the smallest enclosure that would contain the eye tube and its circuitry.
Adding a 6e5 magic eye to an airline 62316 antique radio. The tuning indicator tube, or magic eye as it is was introduced by rca, was used to display the optimum signal tuning point of a tunerreceiver, or the peak signal level of a preamplifier or tape recorder. So we take the lateral arrangement of dm7071 and shape rabbit ear has extended well suited novale glassware. The em80 brings together these two features and is. The circuit itself can be mounted anywhere presumably under the chassis. If you want to lay out a large, 15tube complex project, yeah, try a cad program. Right click on the newly created layer and choose blending options, set blend mode to difference. Most american tubes start with a number indicating the voltage 6. Some insights into magic eyes in rdhb chapter 27, but p7980 of rc30 1975 is easier to read.
Magicad schematics provides the first fully integrated schematic creation software to work in synchronisation with autocad and revit models. Posted in classic hacks tagged fft, magic eye, magic eye tube post navigation. Europe mostly it is a column with more or less illumination, but there are also other designs like the neon indicator ig33 luma and ig34 of agabaltic in sweden. A very interesting set is the supraselector sb4345w from. The 6u5 magic eye tube functions but is rather dim. Is there a magic eye tube that stands out from the crowd as being better in some way than the rest. The amazing pete friedrichs has posted a cool video on how he used spinning green leds and simple electronics to create a modern version of a magic eye vacuum tube. Click of photo to view video here is the schematic for the winker above click on drawing to enlarge.
A project thats been sitting on the back burner for a while has finally come to fruition. These are mostly miniature cathode ray tubes crt with an electrode or several to vary the size of a shadow according to signal level. The most obvious use is to bring a dark eye tube back to life. Some sets use an electronray tuning magic eye tube to aid in tuning the set exactly to the station. An impressive piece of work that would look amazing next to a nice tube stereo system.
Magic eye tube submitted by baylab for the instructables sponsorship program. I have an original amphenol magic eye assembly, complete with the appropriate escutcheon and attaching parts. After acquiring the parts, you should print out the magic eye schematic. Magic eye software free download magic eye top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. The magic eye also called a cats eye, or tuning eye in north america is a specific type of such a tube with a circular.
There is a relatively inexpensive eye tube available known as the 1629. Antique radio forums view topic weak magic eye tube. Magic eye tuning indicator as a vu meter bogin, jr. Ive been contemplating construction of a solid state replacement for a 6u5 and 6e5 magic eye tube. Magic eye software free download magic eye top 4 download. Socalled magic eye tubes are display devices, which indicate signal level by the projection of wedgeshaped shadows on a glowing view screen. I am using an nos 6e5 6prong tuning eye tube in the assembly. An early version of the magic eye is given by the valve type 6u5g and, since this represents what is virtually the simplest type of device available using magic eye principles, we shall use it for an introductory example. This makes the magic eye tube a perfect choice to display a one dimensional vu characteristic of a given wave in real time. Interfacing magic eye tube to raspberry pi duration. The dm160 and the similar russian iv15 are not magic eyes, just vfd type indicators. This circuit can be used with a wide variety of magic eye tubes.
A magic eye tube is a miniature cathode ray tube, usually with a builtin triode signal amplifier. The main benefit in tuning reception was for fm tuners where the exact tuning point was. Cyclops one tube radio tuning indicators at wumpuss old time radios. When i read of the contest sponsored by crosley, the first thing i thought of was tube radios. Hydromagic offers support for a wide range of professional single and dual. Schematic for dual magic eye tube board, revised version apparently, i forgot to take out the camera that weekend, as i never took a picture of the new modules. The emphasis of this page is to have a collection of information for those. If this circuit is used with a tube amplifier, the in connection in the picture is connected to the anode of the last tube in the amplifier. The goal of magic words genius is to make more valid words and get more higher score, then you will have more powerful magic to attack the greeneye monster. Dec 18, 2009 the amazing pete friedrichs has posted a cool video on how he used spinning green leds and simple electronics to create a modern version of a magic eye vacuum tube. Figure 1 is a diagram which shows the internal construction of the electronray tube.
Also, new designs were produced, such as the em84 tube, which had a vertical bar screen, instead of a circular design, but the magic eye designation stuck to them too. Tube amplifiers, schematics, parts, triode amplifiers. Electrons emitted by the cathode of this tube impinge on a fluorescent screen, causing the greencolored light to be emitted. This board is designed to be matched with the output level of audio source, preamplifier and power amplifier with adjustable sensitivity. The driver circuit for the em71 was designed by jurgen grau of mister nixie fame and the modsix software was tweaked a little by mr.
Oct 08, 2018 also, new designs were produced, such as the em84 tube, which had a vertical bar screen, instead of a circular design, but the magic eye designation stuck to them too. Help me understand this schematic telecaster guitar forum. A useful tool for managing your eye fi account and files stored on an eye fi card the new eye fi center application features improvements on the existing eye fi manager software functionality as well as brand new sharing capabilities. Adopting universal dc power supply mode dc 5v7v, and can also be directly powered by standard usb 5v, such as mobile. Apr 04, 2016 a look at the operation of the sure electronics magic eye module which can be purchased from the usual online outlets. A look at the operation of the sure electronics magic eye module which can be purchased from the usual online outlets. Top 4 download periodically updates software information of magic eye full versions from the publishers, but some information may be slightly outofdate using warez version, crack, warez passwords, patches, serial numbers, registration codes, key generator, pirate key, keymaker or keygen for magic eye license key is illegal. The pinouts are the same, the only difference being that the em85 requires a 470k resistor on pins 79 instead of the 100k shown.
On list is a full kit of magic eye tube 6e2 an equivalent of em84 audio level indicator board. Professional hydrographic survey software for windows. A somewhat larger box would make the project easier to construct, giving more room to wire the small components onto the tube base. A cool little device for use as an audio vu meter that is basically plug and. In addition, with a rtk receiver, you can calculate tide levels in realtime. The emphasis of this page is to have a collection of information for those who wish to design circuits that use this type of. These tubes were used as tuning indicators in radios of the 1930s and 1940s. Overall receptionperformance of the radio is quite good. Magic eye tube submitted by baylab for the instructables. Uses for the eye tube voltage doubler there are two distinct uses for the eye tube voltage doubler. First time ive had to deal with one of these tubes. Forrest cook 20082020 introduction here is a collection of information on a variety of fluorescent magic eye vacuum tubes that i started assembling while designing the hammonator guitar amp project and my magic eye tube wavemeter. Electronray tuning indicator tube bills antique radios.
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