Hacked Gadgets Forum

March 1, 2013

Valve Headphone Amplifier based on the ECC88

at 4:32 pm. Filed under DIY Hacks, Electronic Hacks

Valve Headphone Amplifier


If you are one of the people that think tube audio is superior to modern audio amplifiers you might want to have a look at this Valve Headphone Amplifier based on the ECC88. The ECC88 looks to be an inexpensive tube that can be used for a variety of purposes. One thing to note with this design is that there is high voltages present in the circuit so please be careful if you take on the build.

“The amplifier will deliver over 100 mW of output into pretty much anything from about 32 ohms to 300 ohms. With the Edcor XSM10K/150 audio output transformers the optimum match is at 75 and 150 ohms. Using headphones with an impedance below 32 ohms will result in decreased performance as the load on the tubes will be below the best range.”




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