Description

Capacity Switch - Tube powered Motion Control 1950 How-To build PLANS Capacity Switch - Tube powered Motion Control 1950 How-To build PLANS Click image to enlarge Description Plans for a tube powered capacity switch. Like a motion control switch an approacing person sets off the switch which can controll a: Window Display - an Outdoor Light - a Burgular Alarm - or other electrical appliance. Tubes required 2050 Thyratron - 117L7/M7 As this is an older plan (1950) some of the parts to build them may or may not be readily available - however a substitution may be made or the parts may be found right here on ebay. This is an original 3 page magazine article from 1950. We do not photocopy these. Article Includes Measured Drawings and Diagrams Complete Instructions Payment Payment: by Paypal, Visa, Mastercard, Discover, American Express, Apple Pay, G Pay, accepted thru eBay. Items shipped upon receipt of payment. Shipping Multiple Items may be grouped to save on shipping. When buying more than one item please use the shopping cart for the best shipping price. Rates: $4.50 for USPS first class / or media mail service $8.70 for priority mail service. $4.50 for Canadian shipping $6.00 other International shipping. About Us Grandpa's Secrets Discover a Wealth of How-to Projects & Plans from a Bygone Era. Explore our Scientific & Mechanical History in Vintage Hobby, Craft, & Technical Magazine Articles. Images sell! Get Supersized Images & Free Image Hosting Create your brand with Auctiva's Customizable Templates. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views With Auctiva's FREE Counter