7581A Tung-Sol (upgrades 6L6GC)

Variants Description Stock Price Quantity
NN-TS-7581 7581A Tung-Sol (upgrades 6L6GC) on_Stock € 25,40
NN-TS-7581 (2)
7581A Tung-Sol (upgrades 6L6GC) (2x)
+ matched in PAIRS, price per PAIR
on_Stock € 58,00
NN-TS-7581 (4)
7581A Tung-Sol (upgrades 6L6GC) (4x)
+ Standard-Matching in QUARTETS for Pentodes, cost per QUARTET
on_Stock € 116,00

7581A Tung-Sol (upgrades 6L6GC)

7581A Tung-Sol (upgrades 6L6GC)
King of clean-headroom tone!
max. plate dissipation: 30W
made in Russia

RohS Compliant
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Jean-Paul Bleus (4/5)

After more than one year of use...

I don't consider this tube as a 7581A but as a 6L6GC since it dissipates a Pmax of 30W. 7581A refers to an unaviable Sylvania which was a kind of 6L6 dissipating 35W, the only 6L6 that ever delivred such a Pmax. But who cares ?

This 6L6GC features some improvements to have more headroom than most of others and I have to say this is true, among all current 6L6's I've had it overwhelms anything else on that field.

I really love this tube, it sounds very detailed and warm too. It is precise in the whole spectrum and never harsh, with a strong bottom end. It really fits goog to my rig : my guitar amp is an Egnater Tourmaster 4100 and I use different cab's and speakers. I biased it at 40mA for around 500V on the plate.

Robert Moss (1/5)

The 7581 datasheet from Tung Sol lists max plate dissipation at 35watts. While the 7581A datasheet lists max plate dissipation as 35watts.
I bought a matched quad listed here they are 7581A, but on the bottle they are stamped 7581 and the packaging carries the 7581 designation. TAD have yet to reply to me as to whether these ARE in fact 7581... but after emailing the 'tube talk' address from the Tung Sol website i was told this,

"You have the new production Tung-Sol 7581. It is a great sounding, beefy replacement for 6L6GC. They are built to 7581 specs, not 7581A specs. The 7581A designation on the Tube Amp Doctor's website is their mistake."

So at some point, maybe somebody will clarify what is actually being sold. I'm not sure what I bought from TAD are in fact 7581A's.

TAD: Thanks to Robert for taking care here!
In fact TungSol provided us a wrong data sheet in January 2012 stating the 35W 7581A which we refered to. But this has been corrected by May, 7th, 2012 and TungSol provided a correct data sheet which we provide for download under the "documents" tab.
The current production TungSol 7581 has 30W plate dissipation.
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