File:The Armstrong super-regenerative circuit (1922) (14574198419).jpg

Identifier: armstrongsuperre01eltz (find matches)
Title: The Armstrong super-regenerative circuit
Year: 1922 (1920s)
Authors: Eltz, George Jacob, b. 1893
Subjects: Radio
Publisher: New York, N.Y. : Radio Directory and Pub. Co.
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Northeastern University, Snell Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ake the place of condenserNo. 1. Best results will be obtained with the extracondenser. 3. Switch for wavelength change. 4. Grid tuning coil. 5. Tickler coil. 6-7. Grid leak and condenser. The grid leak should be removedand the small battery shown inserted. The condensers neednot be disturbed. 8. Hard vacuum tube such as Western Electric or UV-201. 9. By-pass condenser already in the set. 10. Negative C battery 3-41/2 volts. 11. Duo-Lateral or Honeycomb coil of 1250 turns. 12. Duo-Lateral or Honeycomb of 1500 turns. These coils aremounted in a regulation mounting and are variable one withthe other. 13. Variable condenser .003 M. F. This condenser may be eithervariable or fixed as desired, A combination of both fixedand variable is most economical. 14. Hard vacuum tube. 15-16-17-18-19. Filter circuit described later.20-21. Filament rheostats. 22. Output of Super-Regenerative receiver. Connect the tele-phones here or run to audio-frequency amplifier. 23. Negative C battery 3-41/2 volts.
Text Appearing After Image:
1 03 00 X T-I CO O > o -• -4—1 Oj OJ V 13 o a O3 +-> P T-I « S C PI S -OG 3 0) ^ ce OS LO ■<*< LO t^ 00 o C<1 CO P4 I-l T-I -H i-H <M (M C^ ** ^ c c LO 73 03 03CO O t» tn rH 0) 0) ^H o: O 0203 ^ CO -M O o S> ^4^^ obe 0) - TS 0) 20x3 0 d TJ S 0)O 03 G TIS ft o t* 5 ■a .s O o 03 n X3 ^ bJO OS .2 0203 03 > rr! o 03 o >. b£ X3 hfl S S S03 O 03 O o m m^ oWoM o > •1—1 era o l-H (M CO i-H I-l 1-1 r-\ 0) C O O) bo ^ a O) tn « r-lO 0) ^ O ^ ft U O 3 (V O ^ C/2 a CJ m CD bJO dj -« S bC 2 1 L- ■^ S u bJD -H ^ ^ O (U . 1 ^^S$f^ M +^ (D 0 S ^ O m ^- ^ -=■ rf ^ 3 tH fi) ;-! 13 X n^+^ <ii ■^ M Loop varia Loop vided Wavi Grid Tickl Grid Grid Vacu tH iM CO -^ lO ^ t- 00 34 The Armstrong Super-Regenerative Circuit The circuit shown in Fig. 13 is simple to set up and will operateas efficiently in conjunction with a

Note About Images