MATCHED PAIR RCA 7247: 1/2-7025, 1/2-12AU7 AUDIO TUBES

Pricing & History

Sold for
Start Free Trial or Sign In to see what it's worth.
Sold Date
Source eBay

MATCHED PAIR RCA 7247: 1/2-7025, 1/2-12AU7 AUDIO TUBES RARE MATCHED PAIR OF NEW OLD STOCK NEVER USED TESTED AND MATCHED RCA 7247 9 PIN DUOTRIODES FOR AUDIO AMPS AND PRE-AMPS - RARE TUBES - 1/2 EQUALS HIGH GAIN 7025 PREMIUM 12AX7A, AND 1/2 EQUALS 12AU7 FOR PHASE INVERTER Buyer to add $3. shipping WORLDWIDE.PLEASE READ: I have several methods of testing vacuum tubes. For smaller tubes, I use either a calibrated Hickok 539C, TV-7D/U, or for new design tubes a calibrated B&K 747. Test results must exceed the tester minimums by at least 10%. For high power tubes, w I do not have equipment to test under full load, I have a high voltage test stand that applies plate and screen voltage or bias, and I can draw plate current into a resistive load. I attempt to match all the tubes sold in pairs to within 7% of the test readings. Because I don't know the operating condition of you equipment, tubes are sold "as is". I may have several of the tubes being auctioned, and may NOT use a photo of the actual tube.Please contact me directly at , not through the eBay message system. PAYMENT INFORMATION: You can either use the "PAY NOW" button at the end of the auction, or send PayPal to: . I don't send PayPal or eBay invoices because of SPAM and fake messages. IF YOU DON'T USE PAYPAL , email me. I try to ship most items within 48 hours of payment. I read more

Items in the Price Guide are obtained exclusively from licensors and partners solely for our members’ research needs.

Flag item for content or copyright

If this item contains incorrect or inappropriate information please contact us here to flag it for review.

If you are the originator/copyright holder of this photo/item and would prefer it be excluded from our community, contact us here for removal.