Amperite ballast tube data book

The tube list at abc vacuum tubes is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors. All about ballast and resistor tubes antique radio. This current must be applied in very precise ways to the gases within the bulbnormal household electrical current is too erratic and powerful for the fluorescent bulb. Jacobi a comprehensive collection of ballast tube data, newly revised and expanded to include a 53 page section on ballast tube substitutions. Amperite tj311m01 3tf7 ballast tube waiting for your collins r390a receiver new old stock. Dissipation per amperite 40 w per tube t12 bulb amperite co. This is our list of currently available ballast tubes. A ballast resistor mounted in an evacuated glass or metal envelope, like that of a vacuum tube, to reduce radiation of heat from the resistance element and. The ballast tube differs from units which use a dropping resistor in that the resistive element in the ballast tube is designed to decrease its resistance as the current decreases, thus maintaining a constant current flow over a considerable voltage range. We use our engineering and materials expertise, proprietary technology, manufacturing skill, distribution, flexibility, and marketing power to deliver products, brands, and services. Business incorporated in new york city, ny by samuel ruttenberg, produced cartridgetype automatic adjusting resistors ballast currentregulators for tubeoperated acdc radio sets. Electronic valve amperite, regulator, type 4a1, 19301949. The type 185r8 line ballast tube replaces the resistor cord in a.

The transistor q2 operates at quite low voltage and current levels. The 4a1 is designed to pass 300 ma at a drop of 4 v. Id be curious to hear from any of you that bought an r390a that contained one of these or any of you that have information on the contract number or the fsn for them, listed above. Time lag encountered in an amperite ballast tube depends upon the wattage consumed by the ballast and the size of the bulb. Dons bulbs has a bulb data library tube tidbits from vacuum tubes inc. Fluorescent light bulbs use an arc of electricity to create light. Amperite tj311m01 ballast 820 so, if you spot any of these tj311m01 marked ballast tubes, grab a few, theyll work just fine in your r390a. Photo showing an original 3tf7 ballast tube amperite side by side with a switching solid state 3tf7 replacement switching dcdc down converters can reduce heat generation drastically. All are new, unless otherwise described with a used suffix after the type name. Time lag encountered in an amperite ballast tube depends upon the wattage consumed by.

Jul 24, 2019 amperite sandal ballast tubes 3tf4 nos 3vdc games. An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit a familiar and widely used example is the inductive ballast used in fluorescent lamps to limit the current through the tube, which would otherwise rise to a destructive level due to the negative differential resistance of the tubes voltagecurrent characteristic. Refer to stock numbers when doing a check for stock availability. Vintage jfd motorola ballast television tube 17a485459. Rca rc25 tube manual 1966 pdf 42mb download thanks to barry lambert. Please contact factory for specific requirements on your application. Found primarily in kitchens, offices, department stores, hospitals and warehouses, fluorescent lights waste less energy than incandescent lights and can save you as much as 40 percent. Director, ww field applications engineering april 17, 2009. Most people choose fluorescent lights in order to save money. Company confidential 1 ee 5741 design of electronic ballasts eric persson exec. The tube list at the tube center is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors. Unfortunately sylvania didnt put data sheets on separate pages they run together so its hard to break up the data into individual files and index them, like the hb3 data set is. However, it played an important part in the scheme of radioand, especially for the collectors of old tijle receivers, it nes to be remembered.

Box 329 west new york, nj 07093 800 7522329 a m p e r 1 t e solving your relay requirements since 1922. Amperite 3tf7 tj311m01 ballast tube for collins r390a radio. So the bulb comes with a control device known as the ballast, which limits the. There has also been no other are resource which has had me memorizing lots of random data the way ballast did. The right corner of texas, 75451 it is up on nostalgia air under rca, but i dont have their file name. The tube list at esrc1 vacuum tubes is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors. A ballast resistor mounted in an evacuated glass or metal envelope, like that of a vacuum tube, to reduce radiation of heat from the resistance element and thereby improve the voltageregulating action. Being hermetically sealed the amperite is not affected by altitude or humidity changes. Hv1 diffusion pump, etc rca tt3 transmitting tube manual. Theres nothing worse than having to be in a room with a flickering, fluorescent light. How a ballast works a ballast tube consists of a resistance wire typically iron with a positive temperature coefficient in an atmosphere of either hydrogen or helium.

The illustrated module right side runs very cool and dissipates around 1 watt, only. I have no way to test this tube, but it does it appear to be in good condition. Dla900 78mt921 a 578 the tubes themselves are labeled as follows. This part is branded tj311m01, which is how the part is called out on page 6 of the r390a operators manual, tm 11582035810.

The ballast tube handbook antique electronic supply. Explore amperite 94 ballast tube and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. Qty avail tube type price each tube brand test result mutual conduct desc notes 1. Thanks to john stewart the obsolete and seldom used list from the 1946 sylvania data book my list of similar and equivalent tubes with different bases a list of tube introduction dates which might help in. Most heated filaments display the same positive temperature coefficient. Probably ballast tubes were handled by their manufacturers as lamp bulbs rather than as vacuum tubes. The accuracy of a ballast tube was also affected by surrounding temperature and cooling and by mounting position, even if i never found factory data on these items. Cook for advising us that the 21mp4 and 21wp4 crt info was missing. Up for auction is a vintage jfd motorola 17a485459 ballast air cooled television tube. Amperite tj311m01 the side panel is labeled as follows. Although any number of tubes may be connected in parallel to attain any desired current, it is possible that a unit, which will meet your requirements, has already been manufactured.

Amperite 3tf7 tj311m01 ballast tube for collins r390a. The type 1a1 current regulator type of glassenvelope ballast tube is for use in operating 2v. Dissipation per amperite 40 w per tube t12 bulb solving your relay requirements since 1922 amperite. Welcome to the electrical ballasts store, where youll find great prices on a wide range of different electrical ballasts for your home. It has 8 es with the original box and some paper work. Ballast tubes versus solid state regulators in vfo tube filament regulation by kurt schmid, dh3pj unpublished manuscript vfo stability of vacuum tube based receivers among other things depends on the presence of well controlled supply voltages. Ballast tubes home page radio parts menu how to order send email. Follow the links on the left to find the tubes, valves, sockets, grid caps and capacitors for your antique radio, ham radio, hifi stereo, or other electronic piece. Development of the ballast tube and dropin ballast resistor in early acdc radio receivers, a voltage dropping resistor consisting of a wirewound type resistor was used to reduce the line voltage to the value need for the series filament string. Ballast tube article about ballast tube by the free dictionary. The total length of this tube including the prongs is 3 34. Amperite still makes ballast tubes and time delay relays retrovox australia has some interesting data. Ballast tube article about ballast tube by the free. Company confidential gas discharge lamp basics 3 low pressure fluorescent lamp current flows through plasma between electrodes must be ac or mercury migrates to one end plasma emits mostly uv radiation uv excites coating to fluoresce and produce visible light heated electrodes improve lamp life and lower strike voltage argon and mercury vapor.

Vintage components, in the uk vintage tube services has started a history of tube makers for western electric tube data, go to the source. This valve is a current regulator designed to maintain a relatively constant current at a range of voltage drops. Ballast tubes can act as voltage dropping devices and as current regulators. Amperite 121h automatic currentvoltage regulator, ballast. Business incorporated in new york city, ny by samuel ruttenberg, produced cartridgetype automatic adjusting resistors ballast currentregulators for tube operated acdc radio sets. I usually rename them when i download them so that i can find them on my hard drive later, but the. It feels creepy and can also cause a terrible headache. Ge lighting 74459 ge332mvl 120277volt multivolt proline electronic fluorescent t8 instant start ballast 3 or 2 f32t8 lamps. Rca resistor ballast tube data antique radio forums. Power gear fluorescent starter, fs2, standard 2pin, 2pack, 54388.

The 1959 book lost some older tube data, and some of the good info in the appendix, but gained a bunch of picture tube crt data, modern tv tubes, as well as. Ballast tubes introduction of all the tubes used during the golden age of radio, probably the least known and the least cared about among service people at any rate was the ballast tube. Amperite ballast tubes are manufactured to meet military specification milr3080b. Follow the links on the left to find the tubes, valves, sockets, grid caps, and capacitors for your antique radio, ham radio, hifi stereo, or other electronic piece. My ballast book is littered with sarcastic and bitter jokes making fun of it. Amperite, arguably the foremost manufacturer of ballast tubes, started manufacturing them in 1922.