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Two home build power supplies, the top
unit is 12 volts unregulated the lower 12 or 24 volts, both will run 19
set rotary generators and handle the startup current.
To keep the
volts up under different loads the mains is fed via a variac.
I used large
ex computer smoothing capacitors along with nut and bolt wiring, high
current diodes and hefty transformers.
Fans are fitted just in case. |
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| Similar to above in circuit design 12
and 24 volts switch able |
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This unit supplies 6 volts DC and the various
HT supplies required by the 1154 transmitter and 1155 receiver.
The
sockets on the front panel are configured so that by using different pin connections,
a 52 set Transmitter and Receiver can be plugged in and powered up.
Terminal posts also give access to the various supplies, the meter is switch able
to monitor all voltages. |
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