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Groove Tubes Gold Series GT-6201-M Preamp Tubes exhibit low noise, hum and microphonics and are specially selected for use in recording microphones.
A very quiet selected version of a 12AT7. These were used for critical applications such as microphones which use the 12AT7, studio gear, and vacuum tube preamplifiers that use a 12AT7 tube.
This is a Russia made NOS JAN spec tube (Joint Army/Navy Spec) made in the late 70's.
These GT-6201-M Preamp Tubes feature long lasting, really heavy duty dual triodes, usually used in the driver stage of an amp, aka: Phase inverter, and they take a beating driving the power tube changes.
Country of origin: Russia
Reviewed by 1 customer
Displaying review 1
Comments about Groove Tubes Gold Series GT-6201-M Preamp Tube:
I replaced all five tubes in my Mesa Boogie Studio Preamp with four GT-ECC83s, and one GT-6201M preamp tubes. The GT-6201M replaced the GT-12AT7. It has very large plates compared to the GT-12AT7. And I've got to be totally honest. I've had this preamp since 1997, and it's NEVER sounded so good! EVER! I've got a tight bass response, a VERY dedicaded mid range, and a clear rounded top end. I'm playing through an SH-4 bridge pickup. I would easily recomend this tube to anyone interested in a better sounding amp. I'm gonna buy a pair to put in my Fender Twin Reverb. Spend the cash and buy this tube!
Great replacement/upgrade for the typical 12AT7 Preamp tube.
Had it for a month. So far so good. I play every day.
Great value. Only a little more money than the GT-12AT7.
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