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

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Other Discussions > Homebrew Equipment

Notices

Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members.

Closed Thread
 
Thread Tools
Old 11th Sep 2006, 1:17 pm   #1
kalee99
Rest in Peace
 
Join Date: Dec 2004
Location: Newcastle Upon Tyne, Tyneside, UK.
Posts: 420
Default wartime one valve set

Hi all,
I am about to experiment with one valve sets and I belive that during WW2 some people built sets of very simple nature to use in the air raid shelter.
I have a circuit here I am thinking of trying which will only need a 12 volt (car battery) supply for HT & LT.
Any suggestions or alternatives most welcome.
Paul.
Attached Thumbnails
Click image for larger version

Name:	img251.jpg
Views:	246
Size:	65.0 KB
ID:	5375  
kalee99 is offline  
Old 11th Sep 2006, 1:41 pm   #2
wireless_paul
Hexode
 
wireless_paul's Avatar
 
Join Date: Mar 2003
Location: World Heritage Village of Saltaire, Shipley, West Riding of Yorkshire.
Posts: 324
Default Re: wartime one valve set

Quote:
Originally Posted by kalee99 View Post
Hi all,
I am about to experiment with one valve sets and I belive that during WW2 some people built sets of very simple nature to use in the air raid shelter.
I have a circuit here I am thinking of trying which will only need a 12 volt (car battery) supply for HT & LT.
Any suggestions or alternatives most welcome.
Paul.
I used to have a one valve radio that was built in WW2. LT was 1.5V and HT was 9V. Sadly I no longer have it, took it to pieces I think!
Paul
wireless_paul is offline  
Old 11th Sep 2006, 4:26 pm   #3
JHGibson
Retired Dormant Member
 
Join Date: Apr 2003
Location: Salt Spring Island, BC, Canada
Posts: 368
Default Re: wartime one valve set

Hi Paul,
In the BVWS Bulletin for Spring 2005 Vol 30 #1, there is an article titled "Sixty Years Ago in New Zealand" which puts the time frame in the early 40's.
Anyway the author includes circuits for two one valve radios which he called "Hikers" radios. The first circuit is quite conventional but uses only 9 V HT. The second is more interesting in that the control grid G1 is connected to +1.5 V to encourage electron flow from the filament and G2 is used as a control grid. HT is also +9 V in this set.
John.
JHGibson is offline  
Old 11th Sep 2006, 4:40 pm   #4
mickjjo
Rest in Peace
 
mickjjo's Avatar
 
Join Date: Jul 2004
Location: Dartford, Kent, UK.
Posts: 1,661
Default Re: wartime one valve set

There is loads of information on the various incarnations of the "Hikers" sets here:-

http://www.oldradios.co.nz/hikers/

Regards, Mick. .
mickjjo is offline  
Old 11th Sep 2006, 5:45 pm   #5
kalee99
Rest in Peace
 
Join Date: Dec 2004
Location: Newcastle Upon Tyne, Tyneside, UK.
Posts: 420
Default Re: wartime one valve set

Quote:
Originally Posted by mickjjo View Post
There is loads of information on the various incarnations of the "Hikers" sets here:-

http://www.oldradios.co.nz/hikers/

Regards, Mick. .
Hi,
lots of circuits to try here
Thanks.
Paul.
kalee99 is offline  
Old 11th Sep 2006, 7:24 pm   #6
JHGibson
Retired Dormant Member
 
Join Date: Apr 2003
Location: Salt Spring Island, BC, Canada
Posts: 368
Default Re: wartime one valve set

Paul, there is a one valve radio specifically designed to run off a car battery at
www.webex.net/~skywaves/homebrew/12Vregen.htm
John.
JHGibson is offline  
Old 11th Sep 2006, 8:32 pm   #7
kalee99
Rest in Peace
 
Join Date: Dec 2004
Location: Newcastle Upon Tyne, Tyneside, UK.
Posts: 420
Smile Re: wartime one valve set

Quote:
Originally Posted by JHGibson View Post
Paul, there is a one valve radio specifically designed to run off a car battery at
www.webex.net/~skywaves/homebrew/12Vregen.htm
John.
Just what I am looking for
Paul
kalee99 is offline  
Old 16th Sep 2006, 10:19 am   #8
boiss
Pentode
 
boiss's Avatar
 
Join Date: Jun 2006
Location: Malaga, Spain.
Posts: 235
Default Re: wartime one valve set

When I was a lad a few years back, I only had a mains heater transformer as a possible power source (6.3V). I made many single valve regens using any S.H. valves I could find. I found that the audio pentodes/tetrodes worked best including the 6V6 on around 9V Ht. Later I used a voltage doubler to give me around 15V and better performance. The battery valves such as DL96 etc worked very well.
Have fun,
Mike.
boiss is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 10:39 pm.


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 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.