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ULTRA RARE Marconiphone Mullard 17mm Plate B339 ECC83 12AX7 *GOLD PIN * NOS TUBE - Picture 1 of 10
ULTRA RARE Marconiphone Mullard 17mm Plate B339 ECC83 12AX7 *GOLD PIN * NOS TUBE - Picture 2 of 10
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ULTRA RARE Marconiphone Mullard 17mm Plate B339 ECC83 12AX7 *GOLD PIN * NOS TUBE - Picture 4 of 10
ULTRA RARE Marconiphone Mullard 17mm Plate B339 ECC83 12AX7 *GOLD PIN * NOS TUBE - Picture 5 of 10
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ULTRA RARE Marconiphone Mullard 17mm Plate B339 ECC83 12AX7 *GOLD PIN * NOS TUBE

Valves
(1083)
Registered as a business seller
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US $486.50
ApproximatelyEUR 419.87
or Best Offer
Was US $695.00 (30% off)What does this price mean?
Recent sales price provided by the seller
Condition:
New other (see details)
“PERFECT TUBE TESTED EXCELLENT WITH CLOSE BALANCED STRONG RESULTS . TESTED EXCELLENT 81,82 WITH 45 ”... Read moreAbout condition
Offer ends in: 1d 10h
Breathe easy. Free postage and returns.
People want this. 13 people are watching this.
Postage:
Free USPS First Class®.
Located in: Winchester, California, United States
Delivery:
Estimated between Wed, 6 Aug and Sat, 9 Aug to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the delivery service selected, the seller's delivery history and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Seller pays for return postage.
Payments:
    Diners Club

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eBay item number:186988303784
Last updated on 02 Aug, 2025 08:58:40 BSTView all revisionsView all revisions

Item specifics

Condition
New other (see details)
A new, unused item with absolutely no signs of wear. The item may be missing its original packaging, or the original packaging has been opened or is no longer sealed. The item may be a factory second, or a new and unused item with minor defects. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller notes
“PERFECT TUBE TESTED EXCELLENT WITH CLOSE BALANCED STRONG RESULTS . TESTED EXCELLENT 81,82 WITH 45 ...
Brand
MARCONIPHONE
Type
NOS Tube
Model
B339 / ECC83
MPN
12AX7
Country/Region of Manufacture
United Kingdom

Item description from the seller

Seller business information

About this seller

Valves

100% positive Feedback•2.8K items sold

Joined Aug 2014
Usually responds within 24 hours
Registered as a business seller
**********************************************************************We specialize in Rare High quality Audio tube's & Audio Gear!
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage cost
5.0
Delivery time
5.0
Communication
5.0

Seller Feedback (1,134)

All ratings
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  • *****- Feedback left by buyer.
    Past month
    Verified purchase
    Well secured packaging, fast shipping, world class seller.
  • *****- Feedback left by buyer.
    Past month
    Verified purchase
    Superb eBay transaction. Tube arrived perfectly packaged. I missed the postal delivery, but easily received the tube at a post office annex. Wonderful tube as described. It will sit in a place of honor in an 8b. Thanks!
  • *****- Feedback left by buyer.
    Past month
    Verified purchase
    Fast shipping and the item was well packed.
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