2x Mazda ECC812 (~E88CC ~6N1P) NOS/NIB, Close Codes, Close-Matched, Test 100%+

You are bidding on a matched pair of the unusual Mazda ECC812 dual triodes. These are pin-compatible and somewhat similar to ECC88, 6N1P and 6BQ7 tubes, enough that some users roll them in some preamplifiers and headphone amplifiers that use these. The tubes are NOS/NIB/mint, have close date codes, and are selected from a larger lot to have as close values as possible. Both tubes are also in very good electrical condition, tested as 100%+/matched, with following results: Tube 1: Ia1 = 19.20 mA / Ia2 = 17.90 mA, S/gm1 = 12.30 mA/V / S/gm2 = 11.90 mA/V Tube 2: Ia1 = 19.10 mA / Ia2 = 19.10 mA, S/gm1 = 11.70 mA/V / S/gm2 = 11.40 mA/V ...where a new/unused tube should have S/gm around 10.50 mA/V, and emission approx. 15 mA. Paired from a large lot of NOS/spare tubes. This is my last pair! I have much more vintage tubes for sale in my other listings. Any number of items can ship in one package, please use the "Add to Cart" button to add multiple items and use checkout to pay only one combined postage.

Payment: - eBay Managed Payments - Cash on Pickup - No checks or unsupported methods Returns: All items are offered as vintage collector's items, often many decades old. No warranty or safety certification. Returns accepted within 14 days of delivery. Items must be returned in the same condition and packaging. Buyer covers return postage. Refund is issued upon return. Import Duties and Taxes: Buyers outside the EU may face import charges via eBay or local customs. Inside EU, no VAT is added or subtracted due to low-volume sales exemption. GDPR Notice: Your personal info (name, address, etc.) is used solely for fulfilling the order. It is not stored beyond what is required for shipping. GPSR Compliance: These are vintage collectors' items of historical interest (CN 9705 0000 30), exempt from the GPSR regulation under EU Directive 2006/112/EC. If you do not agree with any of the above terms, please do not proceed with purchase.