Equipment information

Chicago Transformer XXXXX Catalog
Manufacturer:
Model:
XXXXX
Date:
1953
Category:
Group:
Description:
Catalog
Manual Type:
Catalog
Pages:
32
Size:
10.05 Mbytes (10536074 Bytes)
Language:
english
Revision:
Manual-ID:
CT-8-58
Date:
01 January 1958
Quality:
Scanned document, all readable.
Upload date:
06 August 2017
MD5:
0a2a0cbd56016c41a16c5959685c2734
Downloads:
425

Information

Transformers and Filter Reactors MIL-T-27A HERMETICALLY SEALED NEW EQUIPMENT COMMERCIAL GRADE CONTROL and POWER CIRCUIT CHICAGO hermetically-sealed transformers are designed and built in accordance with MIL-T-27A Grade 4, specifications for Class R operation. Other units are listed for Class S operation. All units fully meet the rigid requirements for guided missile, military airborne and ground communications equipment, marine equipment, and in any field where a maximum of sealing quality construction is important. They are especially useful in research and development applications, pilot runs, and pre-production models. To indicate the construction characteristics of this CHICAGO transformer line, the MIL-T-27A specifications require that the transformers be: 1. Temperature and Immersion cycled for 5 complete test cycles of five steps each in temperatures varying from (Plus 85°C. for Class R; Plus 108°C. for Class S) to minus 55°C. including a 25°C. saturated salt water immersion step. 2. Moisture resistance tested in temperatures varying from plus 65°C. to minus 10°C. at 90-95% relative humidity for ten 24 hour cycles extending over a ten day period. 3. Tested for insulation resistance in excess of 1000 megohms after being subjected to tests 1 and 2. 4. Tested on each winding at twice the rated A-C voltage and frequency. 5. Operated for 48 hours with 12% overload at rated ambient temperature with no resultant damage either electrically or mechanically. 6. Subjected to severe vibration tests on a shake table for a period of 2 hours in each of three perpendicular planes. 7. Subjected to 10 impact shocks of 50 gravitational units acceleration in each of 3 mutually perpendicular planes. 8. Capable of operation in 65°C. ambient temperature with a temperature rise not exceeding 40°C. except that the special Class S units can operate in an 85°C. ambient with a temperature rise not exceeding 45°C.

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Catalog
Manual Type:
Catalog
Pages:
32
Size:
8.45 Mbytes (8856318 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
01 January 1953
Quality:
Scanned document, all readable.
Upload date:
06 August 2017
MD5:
eaddf5c06535564a32c903df1f3a3cbb
Downloads:
437

Information

Transformers and Filter Reactors The standard chicago Transformers and Reactors you choose from this Catalog are backed by more than two decades of engineering and manufacturing experience in supplying original transformer units to America’s leading manufacturers of radio and electronic equipment. chicago offers the only complete line of Hermetically-Sealed transformers and filter reactors available for quick shipment from stock. These units meet all requirements of Grade 1, MIL-T-27 for Class A operation. The New Equipment line includes power transformers exactly suited to specific requirements—one range of ratings expressly designed for capacitor input, another for reactor input; audio transformers in three ranges—full frequency, public address and communications; plate transformers, matching reactors and other units for amateur and commercial broadcasting. chicago Television Replacement Transformers are exact duplicates of the units CHICAGO has been building continuously for leading TV set manufacturers. The CT General Replacement line provides servicemen with a wide range of standard ratings that fit the most frequent replacement requirements. chicago replacement units are listed in Sams’ Photofact Folders. For your chicago Transformer needs, see your radio parts distributor.

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