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Description
One (1 pcs) 6136 (6AU6WA EF94) RCA NOS NIB Microphone pentode Low Noise TestedCountry of Manufacture: USA Brand: RCA Model: 6AU6 Auction is for one (1 pcs) tube 6136 RCA (6AU6WA EF94) I have more than 40 pcs of 6136 RCA Command series, they are premium quality EF94 6AU6A made in US. They are used in McIntosh & Hallicrafters devices and in many microphone preamps. Tested for low noise and microphonics. Matched pairs available two, just buy two and drop me a message. Registered airmail shipping worldwide from Europe! See also my
Country of Manufacture: USA
Brand: RCA
Model: 6AU6
Auction is for one (1 pcs) tube 6136 RCA (6AU6WA EF94)I have more than 40 pcs of 6136 RCA Command series, they are premium quality EF94 / 6AU6A made in US.
They are used in McIntosh & Hallicrafters devices and in many microphone preamps.
Tested for low noise and microphonics. Matched pairs available two, just buy two and drop me a message.
Registered airmail shipping worldwide from Europe!
See also my other auctions, after almost 35 years of collecting I start to sell part of my stock of more than 250000 tubes, vintage parts and other tube gear.
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4.5 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 4
Great kids book
Format: Hardcover
These books are nigh unbreakable in toddler hands. The book is cute and the noises are great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
Fun, Interactive Sound Book for Toddlers
Format: Hardcover
My daughter loves this book and especially enjoys pushing the buttons to hear the animal sounds. We aren’t quite old enough to match the pictures to the buttons yet, but she has so much fun pressing them and mimicking the animal noises, which makes this a great early learning experience.
The bright Eric Carle illustrations are engaging, and the interactive buttons keep little hands busy. A wonderful toddler-friendly sound book that grows with your child and encourages sensory play and language development.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
★★★★★ 5
Great Book for Engagement and Following Directions
Format: Hardcover
Great book! I use it to teach animals and following directions, and it keeps the kids engaged. I covered mine with contact paper because it is delicate. The pages are nicely printed with a glossy finish, but they are made of thin paper.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
My grandson starting @ 6mo loved the sounds. He still loves the book now @ 2yo.
Format: Board book
Beautiful & Brilliant colors, well made book. The battery is still going strong after 2yrs of use by my grandson.
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Reviewed in the United States on February 19, 2026
★★★★★ 2
What a disappointment!
Format: Board book
What you see is what you get. You pay all that money just to get a handful of unexciting sounds. What a disappointment!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2025
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