mekanika_design

Example use of Terminal board
Example use of Terminal board

I made the box of the volume
& AC outlet.
There are power switch,power
indicator,and volume knob
on the front panel.
AC Inlet,two AC Outlet,and
RCA jack are in the rear
panel.

Example use of Terminal board

It has become a simple
circuit.

Volume box circuit
Inside

Indicator,and volume knob
on RCA jack,POWER SW,
and VR is soldered.
Otherwise, it has become
a connection by Faston
terminal or crimp terminals.
Left side PCB board
connected
AC100V inlet, outlet, and
power switch.
Right side PCB board
connected RCA jack,VR.

Pilot lamp Pilot lamp

I had been thinking the
neon tube for display of
the SW ON / OFF.
However, I replaced it
with LED.

LED Circuit

I lit one LED
Initially.

I was worried about
blinkingfor a 50Hz area.

Pilot lamp Pilot lamp

Using the two LED to light
up alternately.

LED Circuit

Diode
unnecessary.
The hope
half flickering
100Hz.

For space,
I use two resistors.

Pilot lamp

Hoping the light of the
neontube,I used red LED
andgreen LED.

Although It looks orange
light in the picture, it
has become red or green
color depending on the
viewing angle.

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