Ef80 tube data sheet

I am currently using the ixys part muconnected, which gives a very low output impedance. Ef860 ef80 pentode em80 tube 6dj8 tube em84 tube el500 ecl86 1t4t ecc189 text. Ive been running a few tests on some reasonably highgm pentodes, in pentode and triode mode. For example, if you find a data sheet graph for a screen voltage of 150v but you want to run the screen at 100v, then sketch all the curves about onethird lower down than they were to start with because 50150. Close manufacturing specification tolerances and improved processing provide improved reliability and. Ecf80 6bl8 mullard nos matched pair for mcintosh mr65b mr67. Tube ef 80 or rohre ef80 id709, vacuum pentode, noval, b9a and rfifstage shown. Data from or other sources as supplied by john atwood. The tube is manufactured by the oktjbr, vinnitsa, ukraine. Today, we offer an assortment of more than 20 types of tubes. Nos tube museum quality ef800 telefunken west germany very low noise clear, accurate, detailed, long life version of the ef80 6,800 100%.

All tubes new, military equipment and have otk mark. Svetlana ef86 highperformance audio smallsignal pentode t. Eirc electronic tubes factory ecc8312ax7 ecc83 is a. Also see 7643e80cf mcintosh mr67 tuner to buy 7643 amperex. These newoldstock vacuum tube specifications are provided as informational only, and in no way guarantee the brand or exact functionality of the vacuum tube you receive. This data is scanned and may contain errors caused by the ocr software. 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. Following the riaa stage is a triodeconnected ef1845ej7 with a ixys ccs as a plate load. Double triode data sheet page 1 of 4 quick reference data anode current ia1,2ma.

The tube can be used without special precaution against microphonic effects, in amplifiers in which the input voltage is greater than 10 millivolts, when the tube is mounted in the vicinity of a 5 watt loudspeaker with an efficiency of 5% the vox ac4 is the only guitar amp. Data and circuitry resulting from this work are distributed by the electronic tube department of mullard overseas limited to electronic equipment designers throughout the world. Svetlana ef86 highperformance audio smallsignal pentode he svetlana ef86 is a glass envelope miniature pentode intended for highquality audio preamplifier service. Ive been comparing ge and rca 5879 input tubes, as well as some miniature tubes. Sma ef80 can be utilized to modify melt flow, improve coupling, and to better disperse fillers and pigments in thermoplastics. The thin glass tube envelope is 20 mm diameter and excluding the b9a base pins, is 58 mm tall. Singledriver pentode test data pete milletts diy audio. The ef80 was superseded in the 1960s by the higher slope frame grid ef184 the ef183 being the variable. While the e80f pentode was a high quality development of the ef80, they were not pincompatible and could not be interchanged without rewiring the socket the e80f is commonly sought after satasheet a high quality. Franks electron tube pages foreign substitutes for american types this data is scanned and may contain errors caused by the ocr software. Close manufacturing specification tolerances and improved processing provide improved reliability and superior sonic performance.

Here is a quote from an old amperex data sheet for the ef86. Ecf80 6bl8 mullard nos matched pair for mcintosh mr65b. While the e80f pentode was a high quality development of the ef80, they were not pincompatible and could not be interchanged without rewiring the socket the e80f is commonly sought after satasheet a high quality replacement for the similar ef86 type in guitar amplifiers. The ef80 worked well at 40 mhz and also gave adequate performance at up to 100 mhz. Tube ef 80 or rohre ef80 id, vacuum pentode, noval, b9a and rfif stage shown. This is my homebrew tube superheterodyne tuner covering the am broadcast band 5201670 khz ech816aj8 frequency converter ef966ba6 if amplifier 6n2p. Thanks to max, the chance i have it, has increased considerably. These are tubes that you could use as a single tube driver for an set, for example.

Tube data page tube catalog page data courtesy of steve bench. E80cf7643 amperex pq telefunken 6bl8 substitute the e80cf is a special quality mediummu triodepentode. It also offers improved impact and heat distortion temperature properties in thermoplastic materials. As long as the data sheet provide at least one example graphs then you can roughly sketch other curves yourself. Mar 19, 2020 eirc electronic tubes factory ecc8312ax7 ecc83 is a. Neumann u47, u48 and u67 microphones were originally used by the beatles for their 1960s concerts and recording sessions. Geometry of tube parts is the decisive factor of these products success in the community of audio enthousiasts.