Connecting two TDA2030 thru cheap power transistors we can create a amplifier wich can deliver a higher power. With the components value from the schematic the total amplifier gain is 32 dB. The ...

The goal was to keep the circuit simple and the number of amplification stages to a minimum while having enough gain to be driven by most preamplifiers, solid-state or vacuum tube. This suggested ...

[Rogers Gomez] has posted up this hybrid tube based headphone amplifier over at DIY Audio ... The complete parts list and schematics are available from the site. He notes at the very end, to ...