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Nice guitar builds and repairs here !
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This headphone amplifier provides a gain of less than 10 by a single stage common emitter amplifier and then via a direct coupled emitter follower configu
A simple transistor headphones schematic, with a single power supply between 6 an 20 V.
Add a simple standby switch to your small valve amp !
Diy tone stack for your guitar amp.
The amplifier uses a pair of 19J6 tubes as a voltage amplifier stage - they're cheap, have high Gm, and the heater makes a perfect resistive load for a MOSFET source follower.
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