UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > General Vintage Technology Discussions

Notices

General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc.

Closed Thread
 
Thread Tools
Old 12th Feb 2019, 4:18 pm   #1
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 8,006
Default Schades curves in the Radiotron Designer's Handbook (4th ed.)

The ones below (the first two) for peak, average and RMS rectifier current are a bit clearer than the Schades curves printed in RDH4 Chapter 30 when viewed in the link below (RCA Vacuum Tube Design book, book pages 190 & 191) the curves are in two halves, one half in one pic the other half in the other pic so join together for the full set of curves:

http://www.nj7p.org/Manuals/PDFs/Books/RCA_1940_VTD.pdf

I also happened to come across some curves for determining the series resistance dissipation for rectifiers by A.P.Kauzman (third picture) I tried it against the method in RDH4 for determining the RMS supply current (and thus dissipation) along with Schades curves and it was more or less in agreement, note that Rs includes copper losses...(Vout/Vin)squared*Rpri + Rsec in any transformer that might be used as the supply source, the curves can be found in the link below (book page 95):

https://www.americanradiohistory.com...w-1947-Mar.pdf

Lawrence.
Attached Thumbnails
Click image for larger version

Name:	schade pt 1.jpg
Views:	26
Size:	73.9 KB
ID:	178260   Click image for larger version

Name:	schade pt2.jpg
Views:	20
Size:	74.5 KB
ID:	178261   Click image for larger version

Name:	kauzman rectifier Rs dissipation.jpg
Views:	15
Size:	27.3 KB
ID:	178262  

Last edited by ms660; 12th Feb 2019 at 4:44 pm. Reason: clarification
ms660 is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 1:45 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright ©2002 - 2019, Paul Stenning.