Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Windfreak Technologies Frequency Synthesizers - RF Cafe

ConductRF Phased Matched RF Cables - RF Cafe

PCB Directory (Manufacturers)

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

RF Electronics Shapes, Stencils for Office, Visio by RF Cafe

Stewart-Warner Series 900 Radio Service Data Sheet
February 1930 Radio-Craft

February 1930 Radio-Craft

February 1930 Radio Craft Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio-Craft, published 1929 - 1953. All copyrights are hereby acknowledged.

This receiver is so designed as to permit the use of aerials of widely differing characteristics. In addition to being adaptable to aerials of the usual type, it makes provision for use of the light-line, if satisfactory operation results when the R.F. input is taken from the light-line through C13. (Sw. 1 on tap L.). If the light-line is being used as the aerial, reversing the line plug may improve reception. Volume control is effected by varying R2. This varies the grid-bias potential on tubes V1, V2 and V3. The first tube V1 has a tuned input and its synchronism in relation to the other tuned circuits, is accomplished through a trimming condenser, C5, controlled from the panel. The detector output of this receiver may be tapped to any external equipment, by connection to posts provided on the rear of the receiver. Specifically, it is intended to make convenient the operation of television equipment by connecting to binding posts BP1 and BP3. Also, the detector input may be tapped for operation of a phonograph pickup, by connection to posts BP1 and BP2. There is no switching device for disconnecting the pick-up: for its leads would introduce a capacity that would impair the "phase" conditions, (resonance of the stages) of the set; consequently, the pick-up connections must be removed from the receiver when only radio reception is desired...

Stewart-Warner Series 900 Radio Service Data Sheet

Stewart-Warner Series 900 Radio Service Data Sheet, February 1930 Radio-Craft - RF Cafe


Posted June 9, 2016

Radio Service Data Sheets

These schematics, tuning instructions, and other data are reproduced from my collection of vintage radio and electronics magazines. As back in the era, similar schematic and service info was available for purchase from sources such as SAMS Photofacts, but these printings were a no-cost bonus for readers. There are 227 Radio Service Data Sheets as of December 28, 2020.

RF Electronics Shapes, Stencils for Office, Visio by RF Cafe
Innovative Power Products Passive RF Products - RF Cafe

Amplifier Solutions Corporation (ASC) - RF Cafe