Home › Tag Archives › transformer
29Jul

Vintage 1930s Western Air Patrol Tabletop With Transformer Works! #3

admin vintage Comments Off
Vintage 1930s Western Air Patrol Tabletop With Transformer Works! #3

Vintage 1930s Western Air Patrol Tabletop W/ Transformer Works! Beautiful 1930s Western Air Patrol Tube Radio Produced in Los Angeles for a few years but was forced out of business by RCA over licensing. Works and in gorgeous condition! See Photos for details. No need to ask for tracking information. The first event of your tracking information will be when the label is printed. Let us know immediately if there may be a delay. We work for a 5 Star performance. We are open Tuesday through Friday – 10:00 to 4:00. The item “Vintage 1930s Western Air Patrol Tabletop With Transformer Works! #3″ is in sale since Sunday, July 26, 2015. This item is in the category “Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1930-49″. The seller is “thelistcat-studio” and is located in Granada Hills, California. This item can be shipped to United States.
  • Country/Region of Manufacture: United States
04Dec

RCA 500W Modulation Transformer (Vintage 500 Watt) Amateur Vacuum Tube Ham Radio

admin 500w Comments Off
RCA 500W Modulation Transformer (Vintage 500 Watt) Amateur Vacuum Tube Ham Radio

RCA 500W Modulation Transformer (Vintage 500 Watt) Amateur Vacuum Tube Ham Radio

RCA 500W Modulation Transformer (Vintage 500 Watt) Amateur Vacuum Tube Ham Radio

Rca type 901769-501, 500 watt modulation transformer. The primary is center-tapped for push-pull modulators. The tranformer has two secondaries. Secondary #2 will carry 80 mils to modulate screens of beam power tubes or screen grid tubes. It is equipped with adjustable protective spark gaps on both primary and secondary. Primary will match any class b tubes up to 10,000 ohms plate-to-plate such as 810′s, 75t’s, 805′s, 8005′s, zb120′s, 203′s, hy51z’s, 211′s, 813′s, 828′s, 203z’s, etc. Maximum audio power: 550 watts. Secondary #1: 450 ma. Secondary #2: 80 ma. Pri to sec #1: 1:1. Pri to sec #2: 5:1. Pri to sec #2 tap 25:1. Pri to sec #2: 25:1. Pri to sec #2 tap: 625:1. Sec #2: 99 ohms. #2: 2000v to the rest of the coils and the core. Dimensions 9″ wide, 7 ” deep, 7 high. Mounting centers: 5″ x 8 “, with heavy channel iron mounting brackets. I strive to accurately describe all items. Please notify me immediately of any discrepancies. International: i will not falsify customs records. Exact amount will always be declared. Please be sure you are aware of the costs. The free listing tool.The item “RCA 500W Modulation Transformer (Vintage 500 Watt) Amateur Vacuum Tube Ham Radio” is in sale since Monday, December 01, 2014. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “cliffhiker” and is located in Lynchburg, Virginia. This item can be shipped worldwide.