I WOULD  LIKE TO THANK MY FRIEND GEOFFREY BROWN  FROM CARLISLE,ENGLAND WHO GAVE ME THE IDEA AND THE COURAGE TO DESIGN THIS MODEST HOMEPAGE.THIS PAGE COULD NOT BE REALIZED WITHOUT HIS HELP.THE INTRODUCTION OF MY CIRCUITS IN THE LINKED PAGES ARE THE RESULT OF HIS UTMOST SUPPORT. 
SPECIAL THANKS TO GEOFFREY BROWN 
MANY MANY YEARS A GO I WAS A HOME CONSTRUCTOR  OF RADIOS AND CONTRIBUTOR TO THE BRITISH PERIODICAL " THE RADIO CONSTRUCTOR ". A PLEASANT COINCIDENCE  ENABLED MEETING GEOFFREY BROWN , A FRIEND WITH JOINT HOBBY.
A SELECTION OF SITE RELATED LINKS : 
The team that invented transistors won the Nobel Prize in  1956
John Bardeen, Walter Brattain, William Shockley
Variable Capacitor
Homepage of Maurice Woodhead 
with support of Geoffrey Brown
Homepage of Geoffrey Brown
Yahoo Vintage Radio Group  Moderated by Geoffrey Brown
Publications of A.Ramon Vargas Patron
Homepage of Tom Polk
My  Radio Circuits and of other Contributors  hosted by the Courtesy of  Geoffrey Brown and Maurice Woodhead
Homepage of Rainer Steinfuehr (Gollum's)
SIR CLIVE SINCLAIR
(  I became a Radio Constructor by reading his books )

ON THE NEXT PAGE PLEASE SEE HIS KIND LETTER ADDRESSED TO ME MANY YEARS A GO... 
If the above team invented the transistor,then, who was
JULIUS EDGAR  LILIENFELD  (1881 - 1963) 
Please visit the links below.........

Julius Edgar Lilienfeld at Wikipedia
Julius Edgar Lilienfeld 
During a recent trip to the Black Sea Region, in Turkey,a surprise was waiting for me in  small touristic town named "SAFRANBOLU"
VINTAGE  RADIOS IN SAFRANBOLU :
GUGLIELMO MARCONI  (1874 - 1937) was a radio pioneer
Who Was :
ALEXANDER STEPANOVICH POPOV (1859 - 1906)
Volume Controlt.
The current site music played "GREENSLEEVES"

ONCE MORE I WOULD LIKE TO THANK MY FRIEND
GEOFFREY BROWN FOR HIS UTMOST HELP IN REDRAWING THE CIRCUIT DIAGRAM AND HINTS RELATED TO THE TEXT OF MY NEW ARTICLE "VINTAGE 2008"IN SPITE OF UNFAVOURABLE CONDITIONS.
The music is by anonymous composer however is widely known and credited to HENRY VIII  King of ENGLAND (1491-1547)
The details of my new " Vintage 2008 " Radio can be found on the following pages or under "My Radio Circuits......" above 
ALEXANDER STEPANOVICH  POPOVt((
THE MW VERSION OF ZN414 AND EQUIVALENTS     

ALTERNATIVE LINK GIVEN BY GEOFFREY BROWN 
SPECIAL THANKS ALSO TO MY SON DANNY SABCIYAN WHOSE ABILITY OF DIGGING THE INTERNET HAS ENABLED MEETING MY FRIEND GEOFFREY BROWN 
Ivalek Crystal Radio
Crystal Radio Circuit 
Official  Website of 
A.Ramon Vargas Patron 
Speaker
THE  MW & SW VERSION OF ZN414 AND EQUIVALENTS ......
Transistor Short Wave Receiver
*RADIO CONSTRUCTOR * BACK ISSUES:
  A TREASURE !!