schaub: W; Alpha-Standard
? schaub: W; Alpha-Standard
Can anyone explain how this radio does the AM detection ? Grid of REN804 ?
thanks for your attention,
Dirk Bladt
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Plate bend detector
![Dietmar Rudolph † 6.1.22](https://www.radiomuseum.org/image.cfm?image=Dr_R_2.jpg&width=120&height=140)
Two (or more) circuits TRF sets used an anode bend detector. A description of this type of detectors may be found at "Ghriardi, A.A.: Receiver Circuitry and Operation, Rinehart, 4th printing, 1955".
![](/forumdata/users/133/Squarelaw_plate_detector_590.png)
![](/forumdata/users/133/Plate_detector_590.png)
Dietmar
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anode bend detection
A very big thank you for this cristal clear explanantion to you, Mr Rudolph.
Dirk Bladt
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schaub: W; Alpha-Standard
I am restoring an Alpha-Standard that was in a miserable state, especially the scale wheel. I am wondering if there was a kind of pointer in front of the scale to see the exact frequency? Otherwise the reading of the scale must have been very coarse. And was there a window (cellophane) to protect the scale?
Attachments:- Scale wheel (261 KB)
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