The HP 41CX Calculator has alphanumeric processing capabilities and a unique and intuitive user interface. This HP scientific calculator has 63 registers that can be divided between program and storag

 

Old Bakelite and leather headphones. PL-354 1/4" jack, but it's shorter than modern ones so I can't test them. Sold as is, no returns. Good luck! Posted with eBay Mobile Posted with eBay Mobile

 

YOU GET 30 OF THE HIGHEST QUALITY TYPE JAN 6111WA TUBES ALL 30 ARE IN PERECT BRAND NEW CONDITION WITH FACTORY BOXES AND MATCHED DATE CODES YOU GET ALL 30 TUBES FOR ONE PRICE ALL 30 TUBES ARE MATCHED N

 

12AU7A pair Mullard Gt. Britain made for Hammond. Tested New z

 

Unknown brand unmarked pair of tube output transformers; appear good continuity. Size is 3 3/4 x 3 3/4 x 4 inches. Non ultralinear primaries [ three wires ] and 6 secondaries suggesting some additiona

 

Offered for your consideration is this vintage and well-regarded stereo pre-amplifier from times past. It comes from an estate sale. No testing of any kind has been performed. Accordingly, its working

 

Good Day to you and thanks for stopping by. Please read description carefully. Up for auction today we have 5 Pcs of beautiful Sylvania 6189 / 12AU7 tubes. These beauties are new in original box and h

 

PAIR 6V6GTY Vacuum Tube RAYTHEON Radio Ham audio Amp USA 6v6 GT D Getter Tested RYANMD79 Store

 

4 globe RCA/Cunningham 71A tubes Up for auction are four globe 71-A tubes made by RCA/Cunningham. All are made in the USA, and of vintage production. Cosmetically in very good shape, they all appear &

 

vinyl record player