• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

More Wireless World articles archived

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danFrank

Member
Joined 2005
Hi there,
Thanks for making these available.... By chance do you have the article: "Cascode A.F. Amplifier" by L.B. Hedge? It was in W.W. in June of '54 or June of '55 or June of '56. I cant tell you the year as my copy is pretty bad and the date is cut off, but I do know it was in a June issue of one of those years. It is a great circuit for a very high output, low distortion driver stage for power tubes.
Thanks, Daniel
 
DouglasSelf

DouglasSelf

Member
Joined 2007
douglas-self.com
danFrank said:
Hi there,
Thanks for making these available.... By chance do you have the article: "Cascode A.F. Amplifier" by L.B. Hedge? It was in W.W. in June of '54 or June of '55 or June of '56. I cant tell you the year as my copy is pretty bad and the date is cut off, but I do know it was in a June issue of one of those years. It is a great circuit for a very high output, low distortion driver stage for power tubes.
Thanks, Daniel
Click to expand...

I do indeed. It was June 56. I will put it in the next upload.
 
Mr. dB

Mr. dB

Member
Joined 2003
DouglasSelf said:
I have uploaded some more old Wireless World articles from the 1950s and early 60s to the collection at: The Wireless World Archive

These include:

Phase Shift and Sound Quality: Apr 1956
Inexpensive Variable Slope Filter: Nov 1956
Disc Recording Characteristics: Nov 1956
DC-coupled Transistor Amplifier: May 1958
The Tobey & Dinsdale Transistor Amplifier: Mar 1961
Click to expand...


Thank you for this valuable resource.

If you're taking requests, I think the "Free Grid" and "Cathode Ray" columns deserve an audience.
 
Miles Prower

Miles Prower

Member
Joined 2005
dolphin-hsl.com
danFrank said:
Hi there,
Thanks for making these available.... By chance do you have the article: "Cascode A.F. Amplifier" by L.B. Hedge? It was in W.W. in June of '54 or June of '55 or June of '56. I cant tell you the year as my copy is pretty bad and the date is cut off, but I do know it was in a June issue of one of those years. It is a great circuit for a very high output, low distortion driver stage for power tubes.
Thanks, Daniel
Click to expand...

I have that article, but I can't recall where I downloaded it. Let's see if I can attach it. Didn't work, maybe try PMing me for it.
 
DouglasSelf

DouglasSelf

Member
Joined 2007
douglas-self.com
Mr. dB said:
Yeah, that kind of volume would be a herculean task, it'd be nice if those works could be compiled into a pair of books, but I don't know what the demand would be these days.
Click to expand...

I would have thought the demand for Free Grid would be very limited as it tends to focus on contemporary issues. It also descends too often into mere pedantry about words. 'Random Radiations' by Diallist would be even less popular.

The Cathode Ray technical articles have a much more lasting appeal; and I have several bookmarked for uploading. The problem is that I have a couple of hundred articles by various authors so marked, and there are only so many hours in the day...
 
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