OCR Text |
Show Reflex Amplifier. A "reflex amplifier" using tnrea tubes, a crystal detector and associated asso-ciated apparatus, may be so connected as to provide three stages of radio frequency fre-quency amplification, detection and two stages of radio frequency amplification. amplifica-tion. The tubes thus operate both as radio and audio frequency amplifiers, but it Is not advisable to attempt, tha use of more than two stages of audio frequency amplifications, due to tha fact that the highly magnified audio frequency signal prevents the tubes from operating efficiently as radio fr quency amplifiers. |