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

Noisecom

Cafe Press

Windfreak Technologies Frequency Synthesizers - 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

Innovative Power Products Cool Chip Thermal Dissipation

Crosley Model 1155, 11-Tube 4-Band Superhet
Radio Service Data Sheet
May 1936 Radio-Craft

May 1936 Radio-Craft

May 1936 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 is another Radio Service Data Sheet like many that appeared in Radio-Craft magazine, the May 1936 edition in this case. I post this schematic and functional description of the Crosley Model 1155, 11-Tube 4-Band Superhet radio manufacturers' publications for the benefit of the many hobbyists and archivists who might be searching for such information either in a effort to restore a radio to working condition, or to collect archival information. Unfortunately, I have never been able to locate a photograph of the Crosley Model 1155 radio.

Crosley Model 1155, 11-Tube 4-Band Superhet

Crosley Model 1155, 11-Tube 4-Band Superhet, May 1936 Radio-Craft - RF Cafe("Auto-expressionator"; range, 150 kc. to 19 mc.; triple-tuned I.F.Ts.; tuning meter.)

Socket voltages are as follows, from tube to ground, using a 1,000 ohms-per-volt, meter:

*Grid 3, -5 to -30 V.

The power output is about 15.5 W., and power input 140 W. Speaker field drop, 125 V.

The I.F. alignment is accomplished by connecting the service oscillator first to the grid cap of V4, and then through a 0.02-mf. condenser to the grid cap of V2. The adjustment is made by turning the middle trimmer, never the top or bottom trimmers. Do not touch the latter.

R. F. alignment on the Blue, Red, and Green bands is accomplished with a 250 mmf, condenser connected between the service oscillator and the receiver ANT. post. A 400-ohm carbon resistor is used in place of the condenser on the Violet band. Shunt alignment frequencies are, 400, 1,700, 6,000 and 18,000 kc. Series alignment frequencies are 150, 600 and 2,500 kc.; none for Violet band.

The "auto-expressionator" is entirely automatic and needs no service, except a check to make sure the special bulbs are good.

 

 

Posted July 28, 2022
(updated from original post on 5/18/2015)


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.

Innovative Power Products Cool Chip Thermal Dissipation
withwave microwave devices - RF Cafe

Axiom Test Equipment - RF Cafe

Temwell Filters