Tube Amp Archive

Here's something I've been thinking of: since the sources are going to be either CD, ipod, computer direct out or Record player with built in preamp, do I even need a preamp? Would it be conceivable for me to have: In>unity gain Buffer with NFB fed to Cathode>Power amp?

rdjones is right about the other half of the 12AT7 Kagliostro: I've been looking at a number of old schematics. This design is based on the Mullard 4-10. Would you have any other designs in mind that I could use as comparison points? Also, do you have some details as to the regulation depending on o...

the PI and power amp tubes are actually enclosed in 2 PCL86 tubes, which are pentode+triode. The 12AT7 is the preamp (because I happen to have 5 of them), and the whole design is a frankenstein based on the Mullard 4-10. D5 and D4 are fairly cheap additions to the traditional PS topology recommended...

Hello everyone!

I've been working on a hifi tube amp for the first half of my senior thesis and I'm looking for feedback on this first version of the schematic (attached). Comments, questions and suggestions welcome, I'll take any sort of help.

Thanks in advance,

SI