Re: 6CA7/EL34 "big bottle" beam tetrode by EH

Posted by Chris Spafford on October 3, 2002 at 09:57:49

In Reply to: 6CA7/EL34 "big bottle" beam tetrode by EH posted by JJ Analog on October 3, 2002 at 09:35:45:

JJ-- He uses them in a hifi setup. He has a Conrad Johnson MV52 (I think; I'm an ARC guy-- it's a CJ EL34 amp which has an MV prefix) driven by a CJ preamp-- again, I think it is a PV10, but I don't know. He bought it new in the mid 1980s. He uses Altec 820 speakers (2X model#416 15" LF drivers per cabinet and an 802 compression horn affixed to a 211 (511?) horn). His signal source is a Sota Sapphire with a Grado cartridge(not sure which). Interconnects and speaker cables are Cardas twinlink. He always dismissed Mullard, Dutch Amperex, and Telefunken Pentode EL34s, opting for US Sylvania beam tetrodes; he claimed that in this amp they offered a harmonic richness and depth of soundstage unattainable with the pentodes. As supplies of the US 6CA7 dried up, he went to a quad of JJ; he found them, in his words, "bloated and imprecise." He too found Svetlanas much better. He has only had the EH 6CA7s for a short time, but he LOVES them. His CJ amp has this thing (pretty technical terminology, eh?) for biasing where a red LED lights when that tube is biased properly, so he doesn't tweak the bias. He loves the EH beamies in this app, claiming that they don't over-emphasize the somewhat Euphonic qualities of his analog source. Chris

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Follow Ups Full Thread

Topic - finally bought a jolida 302b but it needs tubes - franco211 22:27:13 10/2/02 (12)

Re: finally bought a jolida 302b but it needs tubes - rmahoney 17:54:20 10/4/02 (0)

Franco: I liked the sound of Svetlana's in a... - DeKay 12:52:46 10/3/02 (0)

Re: finally bought a jolida 302b but it needs tubes - Chris Spafford 08:01:15 10/3/02 (7)

Re: finally bought a jolida 302b but it needs tubes - fatbottle 10:45:40 10/3/02 (3)

Re: finally bought a jolida 302b but it needs tubes - Chris Spafford 11:39:54 10/3/02 (2)

Re: finally bought a jolida 302b but it needs tubes - fatbottle 13:22:49 10/3/02 (1)

Re: finally bought a jolida 302b but it needs tubes - Chris Spafford 20:11:59 10/3/02 (0)

6CA7/EL34 "big bottle" beam tetrode by EH - JJ Analog 09:35:45 10/3/02 (2)

Re: 6CA7/EL34 "big bottle" beam tetrode by EH - Chris Spafford 10/3/0209:57:49 10/3/02 (1)

Re: 6CA7/EL34 "big bottle" beam tetrode by EH - JJ Analog 11:45:23 10/3/02 (0)

For the 12AT7 a good choice would be Mullard CV4024 - Bas Horneman 06:49:46 10/3/02 (1)

Bas: I have a pair of NOS CV4024's... - DeKay 12:35:01 10/3/02 (0)

Follow Ups

Re: 6CA7/EL34 "big bottle" beam tetrode by EH - Chris Spafford 10/3/0209:57:49 10/3/02 (1)

Re: 6CA7/EL34 "big bottle" beam tetrode by EH - JJ Analog 11:45:23 10/3/02 (0)

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