Test of Models RAA and RAB Receiving Equipments
Abstract
The use of RCA-56 tubes in place of CRV-38027 tubes would not only improve the performance of the audio systems of the RAA and RAB Receiving Equipment somewhat but would be a move toward modernizing this equipment. The CRV-38027 tubes are fast becoming obsolete and in a short time will be costly to replace. It is recommended that reference be made to report R-1042 entitled "Investigation of Hum in Model RAB Receiver" so that the reader may become familiar with the exhaustive tests made for hum on the RAB Receiving Equipment and the recommendations made for reducing the hum. It is believed that the A.V.C. transformer CRV-30018 could be redesigned to have lower leakage reactance so that the frequency characteristic of the transformer will not seriously attenuate the higher audio frequencies within the range of 1000 to 4000 cycles per second.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 17, 1934
- Accession Number
- AD1145281
Entities
People
- John H. Gough
Organizations
- United States Naval Research Laboratory