Specifications

http://www.ppwatt.com
Tweed 5E3 PCB Valve Junior Conversion
Build Manual v3.0 13 Feb 2011
32 of 40
Power Supply, Standby, Heaters, and Output Transformer
Have you connected the OT & PT back to the chassis yet ? If not, now would be
a good time !
8.1.2 The New Output Transformer
Relocate the extra power transformer
grommet from the left-front to the new
hole drilled for the output transformer.
Guide the leads through the grommets
and seat the output transformer in
place. Position the output transformer
with its primary to the front and
secondary to the back such that the
output wires go through the original
hole & the input wires go through the new hole as shown. I use a couple of
washers with the bolts to raise the OT up from the chassis a little. I find it sits
better this way with the wires not squashed up against the chassis.
Guide all of the wires through the chassis.
(Learn from our mistakes.) The extra wires
will be secured and stowed inside the
chassis. Their location outside the chassis
is too susceptible to the heat from the
tubes. Secure the output transformer to
the chassis using the stock nuts & bolts
that you kept !
Cut and solder the output transformer
leads onto the output jack board. Refer to
the PPWatt.com layout diagram,
transformer hookup diagram, and output
jack board for hookup details.
Re-Install the output jack board into its stock
location. Guide the ground wire from the
output jack board to the star grounding stud.
This will be secured to the stud later.