WORLD
OF RADIO!
HERE IS MY CURRENT PROJECT
A SIMPLEX MODEL "PF"
I SHOW THIS AS A MODEL "PF" BUT
I AM NOT TOO SURE, MINE IS A DUAL BAND AND DOES NOT HAVE A VIBRATOR
AND LOOKS LIKE IT OPERATES ON 32 VOLTS DC.
HERE IS THE SET ITSELF. NOT TOO BAD OUTSIDE BUT
AS CAN BE SEEN THERE ARE 3 KNOBS MISSING.
HERE IS THE SIMPLEX MODEL PF THAT I AM CURRENTLY WORKING ON
HERE I SHOW THE POWER CORD WHICH IS OBVIOUSLY
A RESISTOR CORD AND THE ADAPTER THAT IS USED TO REPLACE THE RECTIFIER OR
VOLTAGE REGULATOR, ORIGINAL 6 PIN TUBE WITH A '25Z6' 8 PIN OCTAL TUBE.
HERE IS THE SCHEMATIC THAT I BELIEVE TO BE MY
SET.
YOU CAN ALSO SEE THESE PHOTOS AT
MY PHOTO SITE WHICH SHOWS THUMBNAIL VIEWS WHICH CAN BE SELECTED AND VIEW
AT YOUR CHOICE.
THESE VIEWS SHOW THE OPENING WHERE THE TRANSFORMER
WAS LOCATED IF IT EVER HAD ONE. IT IS REALLY HARD TO TELL BY LOOKING AT
THE CHASSIS.
THIS SHOWS AN UNDER CHASSIS VIEW IN WHICH I ATTEMPT
TO SHOW THE RE-WIRING INCLUDING A RESESTOR THAT WAS ADDED APPARENTLY WHEN
REMOVING THE TRANSFORMER.
HERE IS A CLOSE UP OF SOME OF THE WIRE MODIFICATIONS.
THE AREA IN THE CENTER THAT IS SURROUNDED BY THE RECTANGLE IS APPARENTLY
AN ADDED RESISTOR. ON THE RIGHT IS THE RESISTOR TYPE POWER CORD WHICH SEEMS
TO HAVE A CONVENTIONAL TYPE PLUG. ON THE RIGHT IS WHERE ANOTHER SHORT
PIECE OF RESISTOR CORD WAS ADDED. IT ATTACHES TO ONE PIN OF THE 25Z6
TUBE.
I TRIED HERE TO SHOW THE SCHEMATIC THAT IS ON
THE BOTTOM OF THE CABINET BUT IT IS HARD TO READ DIRECT AND ALMOST IMPOSSIBLE
FROM THE PHOTO.
I DON'T HAVE AN EXACT MODEL NUMBER BUT MY SET
IS A DUAL BAND SIMPLEX TOMBSTONE AND THIS SEEMS TO BE THE CLOSEST I CAN
FIND ALTHOUGH MINE DOES NOT HAVE A TRANSFORMER NOR DOES IT SHOW SIGNS OF
EVER HAVING A VIBRATOR.
THIS IS A DRAWING THAT I MADE OF THE TUBE LAYOUT
SHOWING THE TUBES THAT ARE CURRENTLY INSTALLED IN MY SET.
TO SEE THEM CLICK ON THE LINK BELOW.
See my photos of Simplex project at PhotoPoint
SEE MY CROSLEY TYPE 'V' PROJECT