Alembic Guitars Club
Alembic products => Alembic Basses & Guitars => Topic started by: pierreyves on July 04, 2010, 03:06:46 AM
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Hi everybody, could you confirm if this tube is well for F1-X?
http://www.jj-electronic.sk//pdf/ECC%20803%20.pdf (http://www.jj-electronic.sk//pdf/ECC%20803%20.pdf)
best regards
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Pierre-Yves,
I have a JJ ECC83 in my F1-X. Recently, looking for a higher-gain tube, I made an inquiry to a reputable company called Eurotubes (http://eurotubes.com/ (http://eurotubes.com/)).
They recommended the JJ ECC803 and assured me it would fit within the same metal sleeve as the ECC83. But I do not have personal experience with the tube, so I cannot be certain.
Hope this helps.
--Joe in San Diego, California, USA
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JJ ECC83s are one of the smaller diameter current production 12AX7/7025/ECC83 tubes. Electro Harmonics, TungSols, and Mullard reissues will probably be too large to fit inside the shield on an F1-X. Just tried all of these in a 70's Marshall with small diameter shield bases and the JJs were the only ones that fit. I highly recommend getting the Ruby tested 12AX7HG+, which is Ruby's nomenclature for the highest gain/lowest microphonics JJs out of the large batches they get.
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But they are ECC 803, not ECC83 ? Possible to compare size of your tubes ? Sorry, I don't have pied ? coulisse:
http://www.temps-et-mesures.com/img/p/218-274-thickbox.jpg (http://www.temps-et-mesures.com/img/p/218-274-thickbox.jpg)
Thank's
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How about some data sheets for JJ tubes:
ECC803:
http://www.mif.pg.gda.pl/homepages/frank/sheets/163/e/ECC803.pdf (http://www.mif.pg.gda.pl/homepages/frank/sheets/163/e/ECC803.pdf)
ECC83S:
http://www.mif.pg.gda.pl/homepages/frank/sheets/163/e/ECC83S.pdf (http://www.mif.pg.gda.pl/homepages/frank/sheets/163/e/ECC83S.pdf)
Hope this helps!