The 6k4 64 tube intended for controlled voltage amplification of high frequency. Its essentially a 6l6g with a plate cap and different pinout. The 11v tube may run a little hot, but unless you have an enclosed cabinet full of them i dont think itll be an issue. The life of the tube at maximum conditions may be shorter than at less severe conditions. The lowmu units plate dissipation of 10w and low plate resistance make it especially suitable for low power output duties. I try to concentrate on popular andor readily available tube types. Electron tube data sheets electron tube data sheets, valve, tube, electron tube, vacuum tube, diode, triode, tetrode, pentode, hexode, heptode, octode, enneode. At the bottom of this page youll find some links to other tube datasheet sites in case you cant find what youre looking for here. The highmu units amplification factor makes it a perfect partner to provide the voltage amplification for line level signals. Compare an early data sheet with that for the 6sn7gtb. Diy audio projects forum vertical 6em7 portable amp.
I am a noob, and i think it is 225 volts from the 260 volt supply, but correct me if i am wrong. Once an obscure tv tube, the 6ea76em7 has really made a comeback due to its usability in high end audio. Purchase 6em7 6ea7 tube vacuum tubes online, in stock and ready to ship. Our tubes are always tested, matched and guaranteed. Vacuum tubes, sockets, capacitors, nixie and electron tube accessories. Make offer matched quad of nos nib sylvania 6em7 6ea7 vacuum tubes 2 matched pairs. Shop our great selection of vt100, cv124, 5933, cv1060, cv1572, vt6, cv659, fu25, vacuum tubes now. As a three tubes amp, its using one rectifier and two 6em7 tubes. The first was that it was partially an experiment to see if an alternating current filter supply would cause 60hz hum. I decided to perform some basic amplifier measurements on the edcor 6av5 combination. The technical data is contained in the highresolution color scans of over 20 original catalogs from 1958 to 1963.
Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. The 6em7 double triode was purpose designed for 525 line american. Electron tube data sheets electron tube data sheets. The wide glass tube envelope is 29 mm in diameter, and excluding the io base pins is 69 mm tall. Matched quad of nos nib sylvania 6em7 6ea7 vacuum tubes 2 matched pairs. Tubes in the tube column are directly replaceable with tubes in the replacement column. The 6em7 is a single tube envelope containing both a lowmu triode and a highmu triode. You will find thousands of tubes or valves with interesting links. Tube, 6ea76em76gl7 6em7 tube, 6ea76em76gl7 double triode.
The 6v6 lacewood amp was designed and built in the first half of 2011. Links to tube data are mostly to the wonderful nj7p tube data site. One is a high gain, low power unit intended as an amplifier or oscillator, and the other is a higher power unit intended to drive the magnetic deflection coils on the back of a crt. At that time there were two important aspects to this build. Df6na russian tubes datasheet gixx, gsxx, guxx, ylxxxx, thxx, rwxx. I discovered while playing around with the 6dn7 and 6em7 that the edcor transformer really likes cathode feedback, so i tested that too. Due to coronavirus covid19 we have limited staff working on location. The clean output power from the 6em7 set amplifier is 2. My earliest perception that there was something different in listening to a valve based, singleended headphone amplifier, was the odd realisation that i was typically using the headphones ten or more times as often as i otherwise would, and then for ten or twenty. Hey gents, on woos site on the wa6se page, 6em7 tubes can be bundled as an addon with the unit described as the ultimate driverpower tube for the wa6se. This list is biased by the tubes that i have encountered during the repair of the many tube amps that have come to my repair shop.
We carry all of the major brands in nos, vintage and new production vacuum tubes. The 6e1p 6br5 em80 magic eye and other indicator tubes. The wla12a is the only tube preamp ive ever heard, so im trying to match experience with book learning here to figure out how such a circuit might work and possibly to build it. An additional gain of about 20db is provided by two sections of a single 6sn7 connected as an srpp amplifier. A quick check of the data sheet shows that the peak inverse voltage for this tube is 1200v and the max current is 500ma, both values provide significant margin. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. Datasheet of triodes, diodes, penthodes,tetrodes, vacuum tubes.
A 6em76ea7 headphone amplifier a conventional, singleended topology developed as a testbed introduction. Franks electron tube page tube data sheets, tube basics, tube. Thanks to max, the chance i have it, has increased considerably. When two or more tubes are used precautions should be taken to balance the plate currents. You reach this tube or valve page from a search after clicking the tubes tab or by clicking a tube on a radio model page. These mullard black plates are as rare and lush sounding as it. A pdf at the end of a tube description is a link to a pdf of the tubes full data sheet, which generally contains characteristic curves for the device.
A pdf at the end of a tube description is a link to a pdf of the tube s full data sheet, which generally contains characteristic curves for the device. My earliest perception that there was something different in listening to a valve based, singleended headphone amplifier, was the odd realisation that i was typically using the headphones ten or more times as often as i otherwise would, and then for ten or twenty more times as long. These tubes are a full wave rectifiers, electrically equivalent to the original western electric historical tubes. Double the above listed values of rectified current may be obtained from two tubes by connecting the two plates of each tube together, and using one tube in each side of the circuit. Two sections in one bottle, one of them is a little preamp triode with ra of 40k, 330 max plate volts, 66x amplification and a 1. Find great deals on ebay for tube 6em7 and 6gf7 tube.
Make offer sylvania electronic tube 6em7 vtg 40s or 50s. Matt describes the design and construction of a 6em7 singleended triode set amplifier. You even can look up radio models with a certain tube line up. Tube 6r7 or rohre 6r7 id2984, double diodetriode, octal int. The low plate resistance of the low mu section also makes it very suitable as a line stage output. Im using ltspice and psud2 to model a 6sn7 linestage preamplifier inspired by george wrights wla12a line preamp. Tube 6em7 or rohre 6em7 id4818, double triode, octal int. The number one unit is a high gain low current design for service as a frame oscillator whilst the number two unit is a low voltage high current design for the vertical output stage driving the deflection coils.
This is a small envelope tube which is still in production by a number of manufacturers. The singleended 6em7 ampifier is housed in a vertical wooden chassis styled after early tube equipment of the 1920s. True nos mullard britain type 807 black plate vacuum tube the 807 has to be one of the best underrated tubes in the market. The valve contains two triodes of different construction. I know that jack knows his stuff and isnt interested in making broad claims, but can anyone comment that this style of tube is. This amplifier is based on a tube intended to drive the vertical deflection circuits in larger televisions, the 6em7. Vacuum tube 6ea7 6em7, triode, double ce distribution. From the 6em7 data sheet it looks like the maximum plate voltage for the power triode section is 150. Since the 6em7 tube itself is indirect heated and theres no separated slow start circuit, recommendation is to use a indirect. Receptor for emission frequency modulated fm control its electrodes are connected to the output. All tubes new, military equipment and have otk mark. The other big brother is a lowishmu power triode, 10w max dissipation, ra of 750 ohms, 330 max plate volts also, and 50ma max current 175ma surge. Make offer matched quad of nos nib sylvania 6em7 6ea7 vacuum tubes 2.