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434,797 results
Class A JLH 1969 amplifier from Aliexpress. A look at the kit and its setup instructions. Initial tests for THD (Total Harmonic ...
1,215 views
2 months ago
BASIC AMPLIFIERS - Department of Defense 1964 - PIN 28390 - THEORY, CONSTRUCTION AND OPERATION OF BASIC ...
37,482 views
14 years ago