Fayl:Regenerartive Receiver-S7300056.JPG
Bu prevyuning hajmi: 800 × 600 piksel. Boshqa oʻlchamlari: 2 560 × 1 920 piksel | 3 072 × 2 304 piksel.
Asl fayl (3 072 × 2 304 piksel, fayl hajmi: 3,1 MB, MIME tipi: image/jpeg)
| Taʼrif |
English: Homemade single tube Armstrong regenerative shortwave radio receiver using construction apparently dating from 1930s-1940s. The regenerative receiver design was abandoned by commercial radio manufacturers in the 1920s due to its tendency to radiate interference, but due to its simplicity and low cost continued to be built by radio amateurs for shortwave listening until World War 2. In the Armstrong circuit, the feedback is provided by a "tickler" coil in the plate circuit of the vacuum tube which is coupled to the tuning coil in the grid circuit. The tickler coil is visible as a variometer winding within the vertical tuning coil, mounted on a shaft which could be rotated by a knob on the front panel to adjust the feedback. |
| Sanasi | |
| Manba | English WP w:en:File:S7300056.JPG |
| Muallif | Ozguy89 |
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This work has been released into the public domain by its author, Ozguy89, at the inglizcha Vikipediya project. This applies worldwide. In case this is not legally possible: |
Fayl tarixi
Faylning biror paytdagi holatini koʻrish uchun tegishli sana/vaqtga bosingiz.
| Sana/Vaqt | Miniatura | Oʻlchamlari | Foydalanuvchi | Izoh | |
|---|---|---|---|---|---|
| joriy | 15:30, 2009-yil 4-aprel | | 3 072 × 2 304 (3,1 MB) | wikimediacommons>Sv1xv | {{Information |Description=Old Homebuilt regenerative radio |Source=English WP w:en:File:S7300056.JPG |Date=2008-03-28 |Author=Ozguy89 |Permission= |other_versions= }} {{PD-user-w|en|English WP|Ozguy89}} [[Category:Radio receiv |
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