Instruction manual is in great shape. Box is present, but rough.
Item Category: Vintage Electronics
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Vintage Sony AC Power Adaptor Supply AC-S901 Genuine OEM Output 9V 100mA
Pre-owned, in great working condition, nice and clean.
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** Vintage – NPC – Electronic Regulated POWER SUPPLY – Solid State – Model 102 *
The Vintage NPC Electronic Regulated Power Supply is a solid-state model 102 made in the United States. This power supply, with the brand NPC, provides a stable and reliable source of electricity for electronic devices. Perfect for restoring or using in vintage electronics projects, this product offers a timeless and efficient power solution for a variety of consumer electronics.
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Working Vintage Electrolysis Power Supply.
vintage electrolysis power supply. up to 10 VDC. Pretty cool old piece of equipment. all original and works perfect
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Rare vintage, Bristol Co. Waterbury Ct. power supply
Output 60 M.A. D.C. Max. I have tried to take clear photos of this item to help assist you with the evaluation of it. I have not tested this, because I don’t not know how it works.
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Vintage Industrial Power Supply/Switch? LM317K Ham Radio Lab Steampunk📻🤖
The unit has a rugged industrial appearance with substantial internal components and multiple connection points. Your knowledge could get you a deal! Functionality is unknown.
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Vintage HP-15C Scientific Calculator with Case
Good working HP-15C Scientific Calculator. Serial No# 2707A55439. There are many surface scratches to top silver faceplate and scratches on the display. Small HP 15C emblem on top right corner is missing. The backside has black marker smear on top edge and left side as shown by pen tip. Includes batteries, HP case and CD with HP-15C Calculator Owner’s Manual. Guaranteed working condition. Free shipping in USA.  
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Vintage Hewlett-Packard HP-15C Programmable Scientific Pocket Calculator 1982-89
The calculator is able to handle complex numbers and matrix operations. Although out of production, its popularity has led to high prices on the used market. The 15C used bulk CMOS technology for its processor, resulting in very low power consumption.