Up for auction is a Heathkit AA-100 Audio Output Transformer. This transformer has a 6.5K C.T. Primary and a Secondary with 4, 8, and 16 ohm taps. I purchased this transformer years ago on eBay, but n

 

I have a vintage turntable that hasn't been used for several years. It was made in Germany and purchased in the 70's. It plays 7, 10 and 12" records at 78, 45, 33 or 16 rpm and is switchable 110/115 o

 

HP 41 PPC ROM PAC for programmable calculator Hewlett Packard I offer a HP-41C Application Pac - PPC ROM Pac No 825008-A07. Untested, but assumed to work. It is in a very good condition. Shipping cost

 

Up for auction! A perfect 5 pack sleeve of RCA 12AT7/ECC81 with original purchase order and packaging. These have been sitting in the original packaging since 04/1970!!! All are in near perfect condit

 

Up for your bidding pleasure is a huge lot of 250+ VINTAGE TUBES including 6AU6, 35W4, 0A2, 12BA7, EL86, and 12BH7A from a retired TV / radio repairman's estate. They appear to be in good condition an

 

nhat4709 Store MITSUBISHI model : DA-A10 dual monaural construction stereo power amplifier . 100 watts RMS per channel into 8 ohms speaker . used in working good condition . manual visit web at : http

 

three vintage calculators, 1: avstar jeppesen sanderson with manual and in case, 2: national semiconductor 4640, with manual and case. 3:texas indturments TI business analyst-1 with manual and case. I

 

ProScan (RCA) Hi-Fi 4-Head vhs vcr w/ Remote & Manual + Tuner OPERATES & Looks like NEW!! Original Factory Remote is Included MADE in JAPAN!! Hi-Quality ProScan (RCA) Hi-Fi 4-HEAD VCR Introduc

 

2 new in the box 1950-60's Telefunken ECC801S. These are the highest grade best sounding 10,000 hour 12At7s. The "Holy-Grail" of all 12At7/ECC81 tubes. NOS, NIB, low-noise and closely matched valves,

 

what a find , Hello, you are looking at a pair of Bose 301 Series II speakers, they are still in the box with the plastic wrap and corners cardboard still intact in them along with the manual, not a n