The philips are known to have more midrange depth and presense. The e80cc projects a very odd sound stage which gives a much larger than life scale. He removed it himself from control electronics for elevators. The e80cc is renowned for its sonic qualities and very low distortion. Jul 10, 2012 the e80cc is my favorite small signal tube. First of all, it has a much higher gain in mr lees diy preamp. With almost datasheets and the visitor counter indicates over 4000. Rectifier comparison and interchangeability chart kca nos. 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. Many files on this site, especially scanned documentation, are in adobe acrobat pdf format. Increasing the cathode bias resistor is often necessary. The e180cc7062 is much more like a 12av7 than a 12ay7.
E80cc tube 6085 telefunken ra telefunken ra 200 e80cc tube 6085 tube receiving tubes text. A different construction of the classic el34 tube that offers a different tonal palette than the original. Capacitor input f 50 hz u tr eff 2x250 2x350 2x450 v r t 2x150 2x230 2x310. It is ruggedised and designed for long service life. Only a few types are still used today, mainly in highpower, highfrequency applications.
The 12b4a needs 40 vpp 14,1 vrms on grid to deliver 230 vpp. E80cc is a sq tube, something half similar like ecc82, but e80cc is tighter specified, larger plates, higher gain, and many things more. Comparing eight tubes for low power amplifiers article submitted by mike zivkovic of teresonic. May 08, 2000 having such great results with the tungsram e80cc, ive been looking for other e80cc s to try in my cary cd 301 uses 4 12au7s.
The jj el34 ii has an increased low to lowmid end with plenty of headroom to spare. Tube e 80cf or rohre e80cf id4047, triodepentode, noval, b9a and universal shown. They have the same number of wheels and you need to balance to ride them. Even with a 6db feedback loop between the last stages the e80cc will swing the 12b4a with low distortion. You can use the search to find service types or go to the service type lists that you can access from the page more tube related stuff. For miracles, there are better books, like for instance this one here. There are some example digital circuits that could use this type, e. Use the contact form to get in touch and well get right back with a price on the poa item. We need to set the volume backward 45 notch in order to get to the right sound level. Gain in the tube also sets the circuit dc voltages, not just the volume control position.
Comparing eight tubes for low power amplifiers article. There are many equivalent tubes with different names, some identical, some designed for ruggedness, long life, or other. The following list shows the tube types i have entered in my database, with exception of the service types e. There have been many things to seefrom some clever innovations to circuit and theory nonsense. Shop with confidence on ebay buy e80cc vacuum tubes online, in stock and ready to ship. The circuit was designed to create a power amplifier circuit that will utilize e80cc and el34 vacuum tubes for better results while providing 35 watts of power.
If you look at the data sheets youll notice the amplification factor and current ratings are totally different for each tube, reflecting the different control grid construction and size of each. Always check the bias and idle power of the tube with the new rectifier to be certain that it is running within spec. This unusual european tube is basically an industrial type 6085. This has not been used for an audio application but was found in an old 1960s ultrasonic flaw detector used for investigating metal fatigue in crashed aircraft. Many professional audio devices used this tube primarily intended for computer use. Telefunken e80cc gold pin valvevacuum tube, avo tested. Anyone using e80f or 6084 instead of ef86 the gear page. The heater voltage is a bit different, but it doesnt seem to be an issue. Valve amplifier audio amplifier circuit diagram reference book vacuum tube acoustic. I have many amperex 7062s and they are a very good sounding tube. This tube has a more compact plate structure than standard el34s.
The thin glass tube envelope is 20 mm in diameter and, excluding the b9a base pins, is 68 mm tall. This tube was mainly used for the aegtelefunken magnetophone production, but evolved into much of the professional studio equipment of the time. Amperex, mullard, philips, siemens, sylvania, telefunken, tungsram, valvo, westinghouse. Ive also posted sylvania tube manuals on their own page. The jj el34 ii is stronger than the original but not harsh sounding in any way. Hifi and lately, tube hifi has been my hobby for about 35 years. The siemens did, if memory serves me, makea miniscule pop in fq resolution,,yet i need to makea further testing vs the philips e80, maybe tomorrow. It belongs to a large family of dual triode vacuum tubes which share the same pinout retma 9a. Tube possible substitute western substitute ec86 6s3p, 6s4p 6cm4 ec88 6s4p 6dl4 e80cc 6n1p, 6n3p ecc82 6n1p, 6n5p 12au7 ecc83 6n2p ecc803, 6l, 12ax7 ecc85 6n3p 6l12, 6aq8 ecc189 6n23p 6es8 ecc802s 6n1p ev, 6n5p ecc82, 12au7wa, 6067.
Audio asylum search of tubes asylum enter your search criteria. Looking into my ratheiser tube data book, 6085 is the e80cc equivalent you are looking for. The e90cc was designed for high speed and high reliability digital circuits, as the datasheet says, it has 10,000 hours lifetime and is not designed for amplifiers with low noise etc. E80cc a special quality double triode vacuum tube that is a direct or indirect substitute of 12au712at712ax7 due to its identical heater voltage and pin out but draws twice as. E80f is nominally an rf tube that happens to work well in audio frequencies, so by nature it has a much wider frequency range than an audio only tube because it has to be able to operate at very high frequencies. The revenge kr842vhd amplifier lundahl transformers. This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes, or discharge tubes. The design purpose was for computing, switching and scaling. The e80cc is a special quality double triode introduced in 1957. E80cc6085 separate cathodes, dual triode for use as dc or af amplifier. In addition, when changing to a higher output rectifier in a self biasing aka cathode biased amp, eg, champ and others never assume that the power tubes isare safe. It can degenerate into a very distorting tetrode which had mostly 2nd harmonic or a low mu triode.
Ac2 triode for use as af amplifier or as oscillator together with an ah1. A text book along with disectionsimages, still misses the flower in its own enviornment in. Jean hiragas book of japanese tube trends in my hand. Having such great results with the tungsram e80cc, ive been looking for other e80ccs to try in my cary cd 301 uses 4 12au7s. In addition, when changing to a higher output rectifier in a self biasing aka cathode biased amp, eg, champ and others never assume that the power tube s isare safe.
Amounts shown in italicized text are for items listed in currency other than canadian dollars and are approximate conversions to canadian dollars based upon bloombergs conversion rates. Tube e 80cc or rohre e80cc id4042, double triode, noval, b9a and universal shown. Many valve amplifier affectionados use the e80cc as a low distortion, low microphony substitute for the ecc82 allbeit with slightly different operating. First the v72 was reequipped with this state of the art telefunken ef804s audio tube made in their berlin and ulm production. Rectifier comparison and interchangeability chart kca. Siliconexpert provides engineers with the data and insight they need to remove risk from the supply chain. Many industrial, military or otherwise professional tubes were also produced. I 160 150 100 ma c 50 50 50 f u 245 352 497 v choke input f 50 hz u tr eff 2x250 2x350 2x450 v i 180 180 150 ma l 10 10 10 h u 199 288 378 v limiting values.
This tube seems so far to work best as pure pentode. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Tungsram e80cc sounds much more precise, open, and clear, with more resolution toptobottom. I replaced it with a nos tungsram e80cc and never regretted that. This is the circuit diagram of tube power amplifier with this tube amplifier designed in 1953 and worked from 1954 until if youre interested with classic circuit and classic 35 watts vacuum tube power amplifier by e80cc and el34 eeweb community. Some measurements on distortion in small signal tubes. E180cc philips 7062 6414 6829 5965 12av7 e180cc 7062 is very close to ecc81 12at7 familly, especialy similar to e81cc ecc801s premium types and to 5965 and 6414, a bit lower gain, long life 12av7 with expected life of 0 hours, made in holland, three ribs plates. Domestic receiving tubes and their foreign counterparts by. See more ideas about vacuum tube, tube, valve amplifier. Tube power amplifier push pull for more detail information. E80cc tube tube i also received from my friend frank geeraerts from belgium. In my system, which includes a cayin ta30 integrated and legacy classic speakers, the tungsrams sound more balanced and actually less fatiguing than the philips gold pin e80ccs i have. I thought, as many others probably have, that the tube times were totally over and the development ceased until the 80s, when i found jean hiragas book of japanese tube. The 12au7 and its variants are a miniature ninepin b9a base mediumgain dual triode vacuum tube.