This is a nicely matched pair of 12AX7 or ECC83 vacuum tubes.  These are RFT Germany made for Lindal.  They have the grey plates with the large holes in the sides, the heavy dual halo getter supports, and the metal number tag welded to one of the getter supports.  The tags are numbered 57 and 53.  The tubes match nicely at 88-80 and 85-81 on our Hickok USM118B tester where 50 is minimum good.  New old stock in original boxes, these tubes from the 1970s are becoming highly desirable in guitar amps and other tube audio equipment.  These sell for $70.00 per pair but we have a few on clearance at a discount here on eBay.  Satisfaction guaranteed.  High bid gets the tubes shown here.  IL residents pay 10% tax, outside of Il there is no tax, but international buyers will be subject to import duty.  We ship worldwide, all shipping is by first class mail only.

TERMS OF SALE: Serious bidders only, please.  Payment by PayPal is expected at auction close.  A PayPal account is required to bid on this auction.  We ship by first class mail to the name and address of the winning bidder provided to us by PayPal and/or eBay.  We declare the full value on the customs forms for any international shipments.  International bidders should be aware that first class mail cannot be tracked and that processing delays up to several weeks can occur in customs, which is beyond our control.