2. amps-preamps
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12ax7 vs 5751

hi all,
i need some advice. i`m very new to tube amplifiers and i`ve been doing some tube rolling.

i currently have a pair of grant fidelity matched psvane 12ax7t`s in my amp which sound fantastic.

what i`d like to know is which are the better tubes, 12ax7`s or 5751 tubes. i`ve been looking at forums and there are folk out there that say 5751 tubes are better than 12ax7 tubes.

can i have your thoughts on this please and also which are the good 5751`s to go for.

i really like the psvanes but if they can be bettered i`d go for it as my next line up of replacement tubes.

my amp is a yaqin mc100b. the tubes i have installed at the moment are.....
2 x psvane 12ax7t`s
2 x brimar 6sn7gty/cv1988`s
2 x sylvania 6sn7gtb`s
4 x electro harmonix kt88eh`s

many thanks in advance guys.
grayf
grayf OP
61 posts
 
hiya guys,

mac i`ve no experience with amperex tubes but let us know how they sound when you get them.

i`m keeping an eye open for the c9`s mechan. i thought i`d found some on ebay but they turned out to be the 12ax7b`s.

does anyone here have any knowledge/experience with mullard M8137`s? i`ve heard great things about these. i`m putting them on my shopping list when i have the money.

meanwhile i`m still enjoying the golden dragons immensely in my amplifier. i had the volume up quite high for a while yesterday. they sound wonderful and detailed. i forgot to mention the bass. the bass is amazing with lots of detail and depth and texture. i don`t feel i`m left wanting for anything.
mikirob
955 posts
 
Mechans, thanks for the info, I will keep an eye out for them.
mcpherson
174 posts
 
Anyone bought tubes from sam1104?
audioblazer's avatar
audioblazer
325 posts
 
I have a friend who bought from him. Poor communication & it took awhile for the tubes to arrive . I have similar experience. Saw something I like . Make an enquiry. Responded after a few days & agreed to buy. When totally silence . Not the best of communicator. However his tubes is good & seems reasonably price
mechans
3,048 posts
 
I have often wondered about his very short descriptions which indicate to me a person who is not prone to using the laguage well to express themselves either. So I am not totally surprised. It is good to know his tubes are good. The tubes look like pulls, very often and price wise are not exactly a bargain. He certainly seems to know how to market his wares though, look at the numbers of sales. I just can't believe all of his tubes are the "best" as he often advertizes. I wonder if this post will make it beyond the sensors??
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