PHILIPS / Amperex ECC83 / 12AX7 Holland

PHILIPS/Amperex ECC83 / 12AX7 Holland 1971 
Cool and rare stuff! Made in 1971 by Heerlen/Holland factory of Philips, known as Amperex in the US. These have closed disc getter with 8 dimples. All tubes in stock are from the same batch with identical production code : I66 Δ1I4. Tight matching possible thanks to the large quantity on hand. These come screened for low noise and microphonics.

Quantity in Stock : Out of Stock!
Price : US$ 84,00/ea ; US$ 172,00/matched pair        


  1. Great tubes, excellent sound as described, fast shipping and good packing.

  2. To my ears, this tube is “sweet” sounding. It has the characteristic Heerlen “mid-hump.” Sounds glorious clean and overdriven on neck and middle positions of a Stratocaster, but thins out in the bridge. No tube in V1 has reacted so well to my pick attack as this tube. It is aggressive when you kick in some gain.


  3. Tried this in V1 on a Laney Lionheart L5 Studio. Very detailed, great sounding tube. Warm high-mids and highs, tight bass. Low-mids are clear, doesn’t get muddy when driven. Very dynamic tube, responds to a pick attack extremely well.


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