The first patent for a rotary dial was awarded to Almon Brown Strowger in 1892. The early forms of a rotary dial used lugs on a finger plate instead of holes and the pulse train was generated without

 

Up for auction are two RCA 5751 black plate, triple mica vacuum tubes in very nice condition. Both tubes were tested on a Hickok 547 tube tester where 1500 micromhos is mutual conductance and 900 is a

 

Vintage BLACK Rotary Dial Telephone / Western Electric 500 Desk Phone The phone HAS NOT BEEN TESTED!!! I DO NOT HAVE HOME PHONE SERVICE SO I AM NOT SURE IF IT WORKS OR NOT AND IS BEING SOLD AS/IS

 

THIS IS A SUNOCO MODEL 668-A TRANSISTOR RADIO IN THE ORIGINAL BOX WITH EARPHONES AND PAPERWORK. IT IS VERY CLEAN AND DOES NOT LOOK USED MUCH IF ANY BUT WHEN I PUT A BATTERY IN IT AND TURNED IT ON IT D

 

Stock No. 4-C-36, Code No. 1-7-5TR, case in good condition no cracks, the battery holder is missing but wires are there, held wires on 9 volt and got sound, has pop up metal handle, neat little radio,

 

This is a mixed bag collection of Edison Cylinders and have no boxes. They will ship individually wrapped for protection. They are of 2 DIFFERENT types and listed below. BLACK CYLINDERS (3) 9164 TENOR

 

(PLEASE NOTE) I bought this record player from a collector that did all the restoring that was said here. I did not do the restoring myself. The player was bought 2 months ago. I have to sell due to j

 

YOU ARE BIDDING FOR A NOS PHILCO # 7C6 VACUUM TUBE IN A FACTORY SEALED BOX. PAYMENT VIA PAYPAL - FREE SHIPPING U.S. ADDRESS’S

 

This auction consists of an earlier WE telephone type 102 was on the market for a short time.Has a round base and an F1 handset which might have been replaced.Solid phone in need of restoration.

 

You are bidding on a Western Electric 1A1 key telephone system with 207C intercom and power supply. This system was manufactured around 1960 and was installed in an office building in Burbank, Califor