Search RFCafe.com                           
      More Than 17,000 Unique Pages
Please support me by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™ Please Support My Advertisers!
   Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
     AI-Generated
     Technical Data
Pioneers | Society
Companies | Parts
Principles | Assns


 About | Sitemap
Homepage Archive
        Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos
     Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings
 Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post

Software: RF Cascade Workbook
RF Stencils Visio | RF Symbols Visio
RF Symbols Office | Cafe Press
Espresso Engineering Workbook

Aegis Power  |  Alliance Test
Centric RF  |  Empower RF
ISOTEC  |  Reactel  |  RFCT
San Fran Circuits

Innovative Power Products Cool Chip Thermal Dissipation - RF Cafe

Windfreak Technologies Frequency Synthesizers - RF Cafe

Anatech Electronics RF Microwave Filters - RF Cafe

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

RCA Victor Model VHR-307 Home Recording Phono-Radio Combination

Radio Service Data Sheet
May 1941 Radio-Craft

May 1941 Radio-Craft

May 1941 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 Radio Service Data Sheet for the RCA Victor Model VHR-307 Home Recording - Phono-Radio Combination (Chassis No. RC-555) was published in the May 1941 issue of Radio-Craft magazine. It was quite a work of electronics art for its day, especially with incorporating a recording unit. We take for granted today the very simple matter of recording voice and music today with miniature, inexpensive, maintenance-free recording and playback equipment, but in the early 1930s the available media were wire, magnetic tape, and phonograph RCA Victor Model VHR-307 Home Recording (AntiqueRadio.org) - RF Caferecords. Phono recorders actually cut the audio bumps into the groves. Magnetic tape was considered to be a military secret up through World War II. There is an episode of M.A.S.H. where B.J. Hunnicutt receives a record from home of his wife and daughter, indicating the technology was still in use in the Korean War era. The German company BASF, familiar today for recording media (although they spun off the magnetic media group into EMTEC in 1996), pioneered the technology. BTW, you can still buy vinyl record cutters.

RCA Victor Model VHR-307 Home Recording Phono-Radio Combination (Chassis No. RC-555) Radio Service Data Sheet

RCA Victor Model VHR-307 Home Recording - Phono-Radio Combination (Chassis No. RC-555) Radio Service Data Sheet (p1), May 1941 Radio-Craft - RF Cafe

RCA Victor Model VHR-307 Home Recording - Phono-Radio Combination (Chassis No. RC-555) Radio Service Data Sheet (p2), May 1941 Radio-Craft - RF Cafe

RCA Victor Model VHR-307 Home Recording - Phono-Radio Combination (Chassis No. RC-555)

Radio Service Data Sheet

 

Posted March 20, 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
withwave microwave devices - RF Cafe

ConductRF Phased Matched RF Cables - RF Cafe

Innovative Power Products (IPP) Directional Couplers