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OTL, Output Transformerless Amplifier User Group.

Holy cow!!!

I guess it was easy for you to know I was off base about the 12B4. That's a beautiful set-up, right down to the Audio Research SP3 or 3A or whatever iteration. That was the preamplifier, along with the AR Dual 50, that opened my eyes to tube amplification. OTLs came a few years later.

My friend and I used to joke that the safest way to use the Dual 50 was to keep it unplugged.

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  • Holy cow!!! - Lew 16:44:23 02/15/16 (0)


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