pick list
pick list
pick list
pick list
page 7
Glasshouse
300BPSE 01/05/04
page 8 & 12, picture booklet
page 8 & 13, picture booklet
f. wiring of PSU3 tag board
This board provides the heater voltage to V2/V4 - 6.3Vdc and V6 - 5Vdc. Follow page 8 &
page 12.
You will see that all the wiring information is provided in these pictures, which wire to use
and where the wires are connected to.
Twist together the 2 pink wires from the mains transformer and follow the same practice for
the orange wires from the mains transformer.
When wiring the "common" connection of U1 & U2 you are connecting to the solder tag on
the body of the LM323K.
Wire runs to the heaters are twisited together slightly to keep them close together.
Try to avoid any physical contact of wires to the body of any of the LM323Ks are they do
run warm.
orange 1/0.6
red 24/0.2
green/yellow 24/0.2
page 1,4, 8, 15 & 16, picture booklet
e. wiring of PSU4 tag board
This board provides the heater voltage to V1/V3 - 6.3Vdc and V5 - 5Vdc. Follow page 8 &
page 13.
You will see that all the wiring information is provided in these pictures, which wire to use
and where the wires are connected to.
Twist together the 2 green wires from the mains transformer and follow the same practice
for the yellow wires from the mains transformer.
When wiring the "common" connection of U3 & U4 you are connecting to the solder tag on
the body of the LM323K.
Wire runs to the heaters are twisited together slightly to keep them close together.
Try to avoid any physical contact of wires to the body of any of the LM323Ks are they do
run warm.
orange 1/0.6
red 24/0.2
green/yellow 24/0.2
page 1, 9, 10, 11, 12, 13, 15 & 16, pic booklet
d. fitting of R45, valve base & C5 components
Follow page 1, 8, 15 & 16 for the fitting of all valve base located components, try and keep
lead lengths to a minimum.
For the fitting of R45 see page 4.
R1 is connected between V7, pin 8 and pin 1 of the choke. This resistor sees a very high
voltage so ensure there is no contact with the chassis, vavle base ring or body of the
choke. See page 1 & 8.
For R6 & R7 fitting see page 1.
R17-20
R31-34
R1
R39-R42
R6
R7
R45
c. fitting of components to tag boards
Each tag board has 36 tags these are labelled and referenced throughtout the wiring phase.
Bags 1 - 6 of the kit contain the components, each is labelled, identifying the contents
clearly. Some components need to be correctly orientated, see page 9, this is very
important as they can blow up. Some components are positioned on the underside of the
tag boards. Keep to the specified layout it has been proven to give minimal hum and in
certain case it is the only way some components will physically fit.
The higher wattage resistors 1W and above need to be spaced 10mm off the tag board as
they do get hot and in time can tarnish the tag board. Otherwise keep lead lengths to a
minimum.
Make absolutely sure no leads are touching the chassis, tag board fixing screws or
underlying standoffs.
Once they are soldered in place, cut off excess.
Components D9-D24 & U1-U4 are static sensitive so use pliers when handling and touch
them only when you have too.
All that should remain is R17-R20, R31-R34, R1, R39-R42, R6, R7 & R45, this are fitted in
the next section. VR1 is fitted later (300BSEi only)
bags 1 - 6
