‘FunKlock’
Issue 5 (14 November 2019
www.pvelectronics.co.uk
alarmed if there are some extra components, as some component
bags are shared between different kit types.
The resistors used in the kit are 1% tolerance metal film. They are
marked with 4 coloured bands to identify the value. However it is
sometimes unclear in which direction the bands should be read.
Therefore, we recommend that the resistors be identified with a
multimeter.
The fuse is a self-resetting type and can be confused for a resistor.
This is what it looks like:
Q1 (IRFD220) is in a very similar package to Q2
can tell the difference, in addition to the part marking by looking at
the pins. Q1 has two pins that are actually joined at the resin body.
Q2 - Q5 have 4 separate pins.
Inductor L1 may be one of three types
14 November 2019)
alarmed if there are some extra components, as some component
bags are shared between different kit types.
stors used in the kit are 1% tolerance metal film. They are
marked with 4 coloured bands to identify the value. However it is
sometimes unclear in which direction the bands should be read.
Therefore, we recommend that the resistors be identified with a
resetting type and can be confused for a resistor.
This is what it looks like:
Q1 (IRFD220) is in a very similar package to Q2 - Q5 (EL817). You
can tell the difference, in addition to the part marking by looking at
pins. Q1 has two pins that are actually joined at the resin body.
Q5 have 4 separate pins.
Inductor L1 may be one of three types:
- 8 -
alarmed if there are some extra components, as some component
stors used in the kit are 1% tolerance metal film. They are
marked with 4 coloured bands to identify the value. However it is
sometimes unclear in which direction the bands should be read.
Therefore, we recommend that the resistors be identified with a
resetting type and can be confused for a resistor.
Q5 (EL817). You
can tell the difference, in addition to the part marking by looking at
pins. Q1 has two pins that are actually joined at the resin body.
