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Sylvania Box 6CB6A Vacuum Tube Tests Strong 3100 µmhos Hickok 800 Unbranded
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Sylvania Box 6CB6A Vacuum Tube Tests Strong 3100 µmhos Hickok 800 Unbranded

Starting price (see what it sold for on eBay ↗) $9.00 as of Jul 18, 2026
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Past Parts & Tubes auctions
Condition Used
Condition tiers New Used Refurbished Damaged Unspecified
Ships from ZIP 320**
biggestbillsfan 1,528 ratings · 99.60% positive
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Description

From the seller
The tube is housed in aSylvania 6CB6A box, howeverthe tube itself does not have Sylvania markings. It is marked6CB6A, but the actual manufacturer is unknown. The original Sylvania box is included and shows normal shelf wear from storage.

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