Electroharmonix 6ca7eh high plate current audio tubes. For a true tetrode fat bottle 6ca7, sylvania is the winner for me. Close manufacturing specification tolerances and improved processing provide enhanced reliability and superior sonic performance. Nos sylvania 6ca7 el34 big bottle power tubes reverb. Block diagram, pinout and 5965 circuit application inside. These have large plates with 3 holes and are known to sound very good and to be very rugged. The bottle is larger on these tubes and they are generally considered to be the toughest of this type of tube. It has an international octal base indicated by the 3 in the part number and is found mainly in the final output stages of audio amplification circuits and was designed to be suitable as a series regulator by virtue of its high permissible voltage between heater and cathode and other parameters. This is the sylvanias 6bn8 double diode triode tube. They are often found branded rca as rca never made any kind of 6ca7el34 in their own plant. Tube aficionados, whats the best el34 6ca7 ever made. Above is a sylvania 6ca7 waiting to be tested on a hickok 539b tube tester. All other trademarks are those of their respective owners. El34s is an economical method to achieve high quality sound with a minimum of driving stage components.
However, sylvania and possibly ge marketed a tube as 6ca7 which was not only in a markedly. Heater warmup time is defined as the time required in the circuit. 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. Most of the datasheets are in pdf format and some are links to other html pages. The european made skinny bottle usually mullard made xf2, xf3 or xf4 codes or the usa made wider glass bottle, known as the fat boy types. Sylvania fat boy usa these are known as fat boy tubes because 6ca7el34 tubes made in the usa have much fatter glass bulbs than their european el34 equivalent. Jul 05, 2019 the el34 is a much loved audio power valve with an anode dissipation of 25 watts. This sylvania 5u4gb fullwave rectifier tube has black plates and a top halo getter. Output pendode el34 is an octal power tube with a maximum plate power of 25w. That last part is one reason i was super curious about eurotubes recent announcement that one of three new jj electronic tubes is a big bottle 6ca7. Please see the substitutes at the top of the page for more details. Jul 24, 2019 the el34 is a much loved audio power valve with an anode dissipation of 25 watts. A lot of people call them a small version of a 6550.
Petersburg, russia, and is designed to be a direct replacement for any el34 6ca7 or equivalent. Jj electronic vacuum tubes, capacitors, amplifiers. Of course, the middle tube is the nos sylvania 6ca7, and the tube on the right is an nos usa ge 6ca7. Hallicrafters fpm300 mark ii safari transceiver faradio b. These american versions of this tube come in two basic flavors. Licensee of product trademark sylvania in general lighting.
The el34 for the most part has a creamy sound with a little grit crunch. Electroharmonix 6ca7 vacuum tube big bottle beamtetrode version of el34. Tubes will be shipped in tube boxes and bubble wrapped for safe delivery. The svetlana el34 is manufactured with the original mullard design in the svetlana factory in st. Close manufacturing specification tolerances and improved processing.
The bottle has 5u4gb inscribed on it and the black base has yellow print with the sylvania lightening logo. Although the plate structure is different, these are electronically the same as the el34. Discussion in the workbench started by majornut1967, mar 9, 2010. Pentode miniature type, 6ca7 datasheet, 6ca7 circuit, 6ca7 data sheet. Designed to the exacting specifications of the philips 6ca7 tube, this classic tetrode returns to life in a big bottle design. Russia, and is designed to be a direct replacement for any el346ca7 or equivalent. Now if your talking about the normal bottle pentode 6ca7 el34 tubes, theres to many nice ones to say which is best. Push pull audiophile tube output 1600 series continued.
Type el34 was first introduced in the el34 is smaller in diameter and taller than the 6l6 and is capable of a higher plate voltage. Tube datasheets here youll find a modest collection of datasheets for some popular tubes. Jan, 2011 you might also know that they never came stock in marshall heads, that evh favored sylvania big bottle 6ca7s, and that good, new 6ca7s dont exist or didnt. Do these eh 6ca7 compare favorably to the sylvanias as well. Each tube tests 108 respectively on my calibrated eico 666 tube tester minimum for good is 80. Vacuum tube 6ca7, electroharmonix antique electronic supply.
Very useful for folks who like this version of 6ca7 but cant afford the prices nos go for nowadays. Osram sylvania national customer service and sales center 1800lightbulb 18005444828. The 6ca7 eh a direct replacement, with military reliability, for any el34. Beam pentode for af power amplifier applications, 6l6gc datasheet, 6l6gc circuit, 6l6gc data sheet. The el34 is a thermionic valve or vacuum tube of the power pentode type. The sovtek el346ca7 is based on the famous sylvania design. Cathedral stone sylvania 6ca7 tube usa eddie van halen. El34 6ca7 audio output pentode, the best choice for guitar amplifiers the el34 6ca7 is an output pentode introduced in 1953 by mullard and intended for use in audio amplifiers and modulators.
Sylvania ecologic fluorescent lamps are designed to pass the federal toxic characteristic leaching procedure tclp criteria for classification as nonhazardous waste in most states. Click for a larger image size to the right is an interesting comparison of different tubes. Sylvania smart led mr16 adjustable white lamp substitube led t5ho lamp ultra led night and day a19 lamp ultra led ho par lamps sylvania smart led edgelit panel sylvania smart led pro flexible strip rgbw sylvania smart led rt56 ho recessed downlight founding and governing member since 2008 2015 design journal adex awards. The 6ca7 is a power pentode designed especially for high fidelity audio systems, it has a plate dissipation of 25 watts and delivers high power without drawing. Please note that every el34 has its own distinct sound and the same applies to nos sylvania and ge 6ca7 s and the new eh6ca7s. Gec, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Design and construction based on the sylvania 6l6gcstr387. The electro harmonix 6ca7 is built to withstand todays highgain amps while still retaining the detailed tone and component integrity of the original.
If the page is blank click here sylvania 6sn7 datasheet. This is the sylvania s 6bn8 double diode triode tube. Matched pair of nos sylvania el34 6ca7 big bottle power tubes. From electro harmonix, great copy of the old phillips sylvania largebulb 6ca7 tube.