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I am selling a used pair of Emission Labs 2A3 Solid Plates. These tubes were provided with my Yamamoto A-08S which I recently purchased. I found that I much preferred the Emission Labs 45 Solid Plates to these tubes. I have put less than 50 hours on them. The original owner told me he put about 100 hours on them. I'll err on the side of caution and estimate 200 hours. I accept payment via Paypal and US postal money order. Shipping will be determined based upon the buyer's residence, though I doubt any place within the US will cost more than $10-$15.
Per the Emission Labs website:
“This tube is a plug & play, direct replacement for original the RCA 2A3 monoplate tube. It will bias exactly at the original operating point. For those who wish to operate this tube at a higher power, this is also possible. You can go up to 28Watt Single-Ended, which will give 9.3 Watt RMS output signal. For best sound, it is recommended to use a normal 2A3 SE transformer, and get the higher dissipation by increasing the plate voltage.
You can make a push-pull circuit that has a peak power dissipation of 40Watt per tube, at full output signal. This will give 40Watt (or more) output signal. Without signal, the power dissipation needs to drop at 28Watt per tube.
The EML 2A3-S tube is constructed for low microphonics. All critical parts, like filaments and grids are made of hard metal for higher reliability and reproducible quality. The tube base is now glued on the glass with anti-vibration rubber.
Features:
• Thick hard metal plates, with coolers
• Fully compatible to RCA 2A3
• Wolfram Grids
• Two extra large getters, flashing the complete tube bottom
• Hand blown ST Glass bulb
• Anti-microphonic plate and grid suspension
• These tubes are shipped in a high quality dual box
• Tube printing with real gold (metal), red color is burned into the glass
• Machined, solid tube base pins for highest contact precision. Ideal for Yamamoto sockets.
• Gold plated pins, black ceramic socket. (White bottom)”
