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General| Type | Headphone Amplifier |
|---|---|
| Input | RCA |
| Output | 1/4" Headphone Jack |
| Input Impedance | 100k ohms |
| Construction | DIY Kit |
| Tubes | 12AU7, 6080 |
| Topology | Single-Ended Triode |
| Impedance | 120 ohms |
Essential safety guidelines and prohibitions for handling high voltage and hot components.
Explanation of voltage vs. current dangers in tube electronics, with examples.
Practices for safe handling, including footwear, hand placement, and avoiding mains wiring.
Tips on using GFIs, test leads, and safe handling of capacitors.
Installing power entry, switch, and RCA jacks onto the chassis.
Wiring the safety ground, AC input, and power switch.
Wiring the components for the high voltage B+ power supply circuit.
Critical orientation of rectifier diodes and filter capacitors in the power supply.
Measuring resistance values to confirm correct wiring before applying power.
Checking critical DC voltages at various points to ensure proper operation.
Performing a final check on headphone jack voltage after initial power-up.
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