More about construction (103)

1-12-1992 | Because of the special requirements of the amplifier, its construction is somewhat different from that of more traditional output amplifi...

1-09-1992 | Before the construction is discussed, it was thought useful and interesting to have a look at the test results from our two prototypes. N...

1-07-1992 | The last printed circuit board to be discussed is the LED-based S-meter (signal strength) unit, which is fitted on to the front panel of...

1-06-1992 | Following last month's description of the system structure and the circuit diagram, this second and last instalment looks at building a...

1-05-1992 | The greater part of this month's instalment is devoted to the operation of the microprocessorcontrolled synthesizer used to tune the RF...

1-04-1992 | Although it is bound to be replaced within a foreseeable period by environmentally safer types, the nickel-cadmium (NiCd) battery is still...

1-02-1992 | The circuit presented here is a dual thermometer that indicates the difference between the temperature indoors and out of doors with the a...

1-01-1992 | Building arecord player, cassette or tape recorder, or compact-disk player, is often hampered by the mechanical construction and the avail...

1-11-1991 | To achieve a comfortable room temperature quickly it is often required to switch on the central heating (CH) boller tor ten minutes or...

1-10-1991 | BUILD THE OPTICALOCK