
100 µF e-cap
100 nF disc capacitor
The loudspeaker must not be
connected directly to the am-
plifier but requires a capacitor.
Any capacitor consists of two
metal sheets insulated against
each other. The
electrolytic
capacitor (e-cap)
used here
contains aluminium sheets in a
conductive fluid (electrolyte).
You have to pay attention to
the mounting direction as
the e-cap will be destroyed
when the polarity is reversed.
The negative terminal is the
shorter leg; it is additionally marked by a
white bar. The kit contains two identical
e-caps with a capacitance of 100 microfa-
rad (100 µF).
There is another capacitor with only a
1000
th
of the capacitance of the e-cap,
i.e. 100 nanofarad (100 nF). The im
-
printed number 104 means 100,000 pF
(picofarad). This component is a ceramic
disc capacitor
and can be mounted in
any direction.
8
Содержание RETRO RADIO
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Страница 15: ...Step 2 Sound Generator Required components 10 k resistor brown black orange 15...
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Страница 18: ...Step 3 Improved Amplifier Required components 100 nF disc capacitor 100 F e capacitor hook up wire 18...
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Страница 24: ...Step 5 Tuning Required components Hook up wire 24...
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Страница 35: ...Measured voltages 35...