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 ...

The all analog amp's retro looks are a design nod to the ... by cages to the top of the stainless steel chassis The hybrid circuit design has allowed McIntosh to include Power Guard technology ...

This part of the vertical amplifier schematic from a Tektronix 454 oscilloscope ... Lee said the 465B came out after the 465 and had hybrid circuits and other improvements that made reaching ...