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ULTRA RARE Marconiphone Mullard 17mm Plate B339 ECC83 12AX7 *GOLD PIN * NOS TUBE - Picture 1 of 10
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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
(1087)
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US $486.50
ApproximatelyC $668.74
or Best Offer
Was US $695.00 (30% off)What does this price mean?
Recent sales price provided by the seller
Condition:
Open box
“PERFECT TUBE TESTED EXCELLENT WITH CLOSE BALANCED STRONG RESULTS . TESTED EXCELLENT 81,82 WITH 45 ”... Read moreabout condition
Sale ends in: 14h 19m
People want this. 13 people are watching this.
Breathe easy. Free shipping and returns.
Shipping:
Free 4 day delivery
Get it between Mon, Aug 11 and Wed, Aug 13 to 94104.
Located in: Winchester, California, United States
Returns:
30 days return. Seller pays for return shipping.
Payments:
     Diners Club

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Seller assumes all responsibility for this listing.
eBay item number:186988303784
Last updated on Aug 02, 2025 03:58:40 EDTView all revisionsView all revisions

Item specifics

Condition
Open box
An item in excellent, new condition with no wear. The item may be missing the original packaging or protective wrapping, or may be in the original packaging but not sealed. The item includes original accessories. The item may be a factory second. See the seller's listing for full details and description. 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

About this seller

Valves

100% positive feedback•2.8K items sold

Joined Aug 2014
Usually responds within 24 hours
**********************************************************************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 shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (1,139)

All ratings
Positive
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Negative
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    This eBay seller promised a lot -- and delivered! Excellent value, and item arrived in NOS condition, just as described and pictured. Superb quality item, and looks great. Seller took good care in packaging, and turnaround time was prompt. Got the item just when I needed it. I'd come back again anytime to do more biz with this seller. THANKS VERY MUCH!
  • *****- 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 6 months
    Verified purchase
    The tubes were well packed and sent to me safely. The tubes are just as posted. They are very rare tubes in near perfect condition, and the price is fair. Great seller! Thank you!
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