~ Vintage Exactra 19 Calculator by Texas Instruments ~~ Orange faceplate in Working Condition ~ This Calculator works and would make a Great Collector Item. It has an on & off button & has fou

 

10PC TUBE - ORIGINAL VINTAGE INTEL P8080A-1 - 8 BIT MICROPROCESSOR - NOS SHIPPING VIA USPS AND UPS ON SOME ITEMS. INTERNATIONAL SHIPMENTS ARE BY USPS 1st Class Mail UNLESS OTHERWISE NOTED!!! DELAYS OF

 

This lot is exactly as shown in photo. Three long screws and 3 wood hole recess covers for Marantz wood cabinets that come in three pieces (top and two sides) commonly seen on receivers and tape decks

 

HP41 X Memory 82181A PAC for programmable calculator I offer a HP 82181A X Memory Pac. It is in a very good condition. Untested, but assumed to work. Is used for the HP 41C 41CV and 41 CX Shipping cos

 

2 new old stock HY31Z tubes, one has black 'gunk' on it from the wrapping - - $8 S/H to Continental U.S. PLEASE READ ALL TERMS & CONDITIONS AND DESCRIPTION PRIOR TO PLACING A BID. PLEASE ASK ANY Q

 

Amperex Holland Bugle Boy EF86/6267. Tested NOS. Single D Getter. Very rare in this well preserved and ultra clean condition. Plain box though :-(

 

The Natrometer, a great invention in it's day. It was sold by the National Radio Institute in 1925. There were extra cylinders available at the time so as to not have repetition in the code. It is run

 

25CU6/25BQ6GA/GTB - CBS - 8 SLEEVES OF 5 - VINTAGE VACUUM TUBES - NOS - USA 8 SLEEVES OF 5 TUBES EACH - TOTAL 40 TUBES IN ORIGINAL BOXES AND ORIGINAL SLEEVES CBS - HYTRON TUBES - A DIVISION OF COLUMBI

 

Brand new cassette tape 2 pack. Never opened. Maxwell XLII 90 High Bias Cassette Tape 2 Pack - Brand New in Package

 

Here is a large lot of vacuum tubes, probably between 400 and 450 tubes. some in original packaging. I have tried to pack them carefully, and currently have them all in 3 boxes to ship. I tried listin