SKU: 30228633160

ECC83 12AX7 Siemens Halske NOS Hum and noise tested Munich plant

Sale price$121.45 Regular price$134.95
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Description

ECC83 12AX7 Siemens Halske NOS Hum and noise tested Munich plantOne (1 pcs) fully tested NOS tube, rare ECC83 12AX7 Siemens Halske made in famous Munich tube plant in 1967. Ribbed plates with one side hole, dual getter support version. Low noise and no microphonics, perfect for use in microphones. We have few 100 pcs boxes of these tubes and we had enough time last few months to carefully test them for plate current and Hickok for transconductance. We have also tested them for noise and hum in our phono RIAA

One (1 pcs) fully tested NOS tube, rare ECC83 12AX7 Siemens Halske made in famous Munich tube plant in 1967.

Ribbed plates with one side hole, dual getter support version.

Low noise and no microphonics, perfect for use in microphones.


We have few 100 pcs boxes of these tubes and we had enough time last few months to carefully test them for plate current and Hickok for transconductance. We have also tested them for noise and hum in our phono RIAA preamp.

They are real vintage NOS tubes, made in West Germany in 1967, carefully selected from big batch. They come in generic white boxes. They are the same batch numbers engraved during sealing  I63 =7P, also the more specific internal codes 220 and 221 are printed on every tube.

These are really nice sounding ECC83 12AX7 tubes, very detailed sound, great resolution and transparency and low noise. I have found exactly the same tube, from the same batch, factory branded E83CC by Siemens, it says enough for quality of these tubes, just to mention that E83CC has 10000 hours warranty for all parameters.
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SKU: 30228633160

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Just Carrie
Fort Morgan, US
★★★★★ 5
Comfortable
Size: 6, Color: Black
Great sandal! Fits great and comfy
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Reviewed in the United States on April 3, 2026
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BJ Coyle
Los Angeles, US
★★★★★ 5
Yes!
Size: 5, Color: Molasses
Love these, very comfortable. Tts
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Reviewed in the United States on June 13, 2026
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Nunca me llegó el pedido
Port Orchard, US
★★★★★ 5
Muy suaves
Size: 6.5, Color: Black
Son muy cómodas me encantaron
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Reviewed in the United States on June 11, 2026
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Jami
Carnegie, US
★★★★★ 2
Not the best
Size: 7, Color: Black, Size: 7, Color: Black
They are cute but they have a bit of an odd fit that isn’t great for people with narrow feet. They look too dressy to wear with super casual outfits in my opinion. I think the Ugg golden star sandals are much comfier. If you’re wearing these sandals for a really short time they’d be okay. After wearing them around my house for a little while I decided to return them since they started to hurt my feet.
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Reviewed in the United States on June 7, 2026
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Ms. Moon
Alexandria, US
★★★★★ 3
Not for narrow feet, very lightweight.
Size: 7.5, Color: Black
My feet are slightly narrow; these were not adjustable enough to make secure. Otherwise they are cute. The material feels kind of light, these were my first attempt at UGGs so I'm not sure if that's typical or an actual quality issue. Either way, they don't seem very durable but I can't imagine these are meant for roughing it.
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Reviewed in the United States on May 8, 2026

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