Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: neon333 on January 30, 2010, 05:23:20 pm

Title: NS Mullard EL84 Reissue
Post by: neon333 on January 30, 2010, 05:23:20 pm
Just popped a pair in my amp and played for about 10 minutes and I really like them so far. Rich, creamy, and smooth is how I would describe them. Great low end and really nice high end definition. Had JJ's in previously and they always sounded a bit harsh and brittle to my ears.

I'm having some folks over tonight for a jam session so I'll let you all know what I think about them after some extended "real life" use. I'll be playing strats, teles, LP's etc., so I should be able to see how they do with single coils vs. humbuckers.

Anyone else have any opinion/experience with these tubes?
Title: Re: NS Mullard EL84 Reissue
Post by: FYL on January 31, 2010, 08:28:54 am
Nice tubes, but you can get as good or better results with 6P14P-EV's.
Title: Re: NS Mullard EL84 Reissue
Post by: neon333 on April 11, 2010, 11:45:08 pm
Quote from: FYL on January 31, 2010, 08:28:54 am
Nice tubes, but you can get as good or better results with 6P14P-EV's.

I've been thinking about using the 6p14-ev's and 6n2p's in my next build.  My only concern is they draw more current than el84's and 12ax7's.  Here are some specs I found:

http://www.russiantubes.com/prop.php?t=12&p=245
http://www.russiantubes.com/prop.php?t=12&p=246
http://www.russiantubes.com/prop.php?t=12&p=197
I think I'm probably ok with the 6n2p-er.

What changes to a power supply and or transformer would I have to make to use these tubes in a 18wattish type circuit?

pax,
neon
Title: Re: NS Mullard EL84 Reissue
Post by: tubesornothing on April 12, 2010, 01:11:58 am
A little blurb about the EL84M  (6P14P-EV)

http://thetubestore.com/el84review.html#russianel84m
Title: Re: NS Mullard EL84 Reissue
Post by: Geezer on April 12, 2010, 05:27:15 am
Quote
What changes to a power supply and or transformer would I have to make to use these tubes in a 18wattish type circuit?

None......the filament draw is the same, the Russians are simply giving a "range" of acceptable (within spec/tolerance) currents, vs the old standard "this tube draws 750mA".
Title: Re: NS Mullard EL84 Reissue
Post by: FYL on April 12, 2010, 06:28:34 am
Quote
A little blurb about the EL84M  (6P14P-EV)

Hmmm. As good as any promo blurb disguised as a comparative test.

Title: Re: NS Mullard EL84 Reissue
Post by: tubesornothing on April 12, 2010, 08:42:27 am
Quote from: FYL on April 12, 2010, 06:28:34 am
Quote
A little blurb about the EL84M  (6P14P-EV)

Hmmm. As good as any promo blurb disguised as a comparative test.



Yeah, as good as any other opinions found on internet forums.
Title: Re: NS Mullard EL84 Reissue
Post by: FYL on April 12, 2010, 11:18:32 am
Quote
Yeah, as good as any other opinions found on internet forums.

 :smiley: