Technical Drawing - Electronic Diagrams - Discussion

Discussion :: Electronic Diagrams - General Questions (Q.No.4)

4. 

These items typically are not used in new designs, but are still common in high-power amplifiers:

[A]. Amplifier tubes
[B]. Electron tubes
[C]. Signal relays
[D]. Switches

Answer: Option B

Explanation:

No answer description available for this question.

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