Direct Coupled Radio Circuit

admin May 16, 2010 No Comments
Circuit Description Here is the circuit diagram of direct coupled radio. The central and core part of this circuit consists of three transistors Q1 (HEP 641), Q2 (HEP 253) and Q3 (HEP 641) as shown in the circuit diagram....
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Simple Level Switch Circuit

admin May 16, 2010 1 Comment
Circuit Description The circuit diagram given here is a simple level switch that switches relays between two states according to the fluid level. The main parts of this circuit are three transistors Q1, Q2, Q3 (BC 107) and two...
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