The Wireless-Set-No19 Group
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Frequency
Meter BC-221-AK
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BC-221-AK,
set up and running with the HS-30 headphones plugged in.
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Valve spares inside the case, shown here with the chassis removed. The 3 connections at the back on the right, are for the power from the batteries to the chassis. |
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You can
see the 3 pin power connector that mates with |
Spare 1 MHz
crystal can be seen clipped to the right side
of the chassis, you can see the octal base pins sticking up. |
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Under side
view of BC-221-AK
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Label from
inside BC-221-AK showing its last date of being treated with Fungicidal
Lacquer, showing this BC-221-AK to be W.W.II vintage!
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Original
BC-221 A/C PSU
Power Unit Type 7262 |
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July
1962
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Terminals
to connect HT/LT and GND to BC-221
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Terminals
from above
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Input
voltage selector, 110v, 200v, 220v and 240v
with 0, +5 and +10 steps between. |
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Control
box for PSU with AC input conenctor on the right of the picture.
Line and Neutral are both fused. Plus the ON/OFF toggle switch. |
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Close
up of the A/C input connector
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