$55

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Product Code: FEN-5550112391

$55

Groove Tubes GT-12AX7/ECC83-S (Single)

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Support: 1 Year

Shipping Info

Mannys has two options for your product delivery. We offer FREE Shipping for orders over $100 (under 20kgs and 105cm) to anywhere in Australia, but if you need your gear urgently, then we also offer an Express Delivery service.

Returns Policy

Unopened items may be returned within 30 days from the delivery date for a refund, exchange or credit. Items that have been opened may be accepted back at our discretion. For more information visit our returns policy page.

35 Years. One Massive Thank You.


Mannys Means Music - and it has for 35 years. To celebrate, we're giving one lucky customer a $3,500 store voucher


Between October 1st and December 31st 2026, spend $350 or more in-store or online and enter to win a $3,500 Mannys store voucher, on us! Enter with your order number via the entry form. T&Cs apply. ACT excluded. Purchase must be made between October 1st and December 31st 2026, 11:59pm AEDT. Entries close January 11 2027, 11:59pm AEDT.

Product Information

GT-12AX7/ECC83-S tubes pass every Groove Tubes premium certification for microphonics, hum, physical characteristics and function. Quite simply the best 9-pin triode preamp tubes you can buy — specifically designed and tested for musical instrument amplification and standard equipment on Fender® amps. Outstanding and consistent performance for mixing and matching to get a signature tone from your amp.

Fender's highest-gain preamp tube, this tube has a huge amount of gain, with terrific output that makes it a great choice for driving modern, complex high-gain circuits. It has a tight, strong and relatively bright tone that can really liven up a weak or tired old vintage amp or a new amp with stock tubes.

Features
  • Fender's highest-gain preamp tube
  • Huge amount of gain
  • Terrific output
  • Drives modern, complex high-gain circuits
  • Tight, strong and relatively bright tone
  • Can really liven up a weak or tired amp