Topic: tube preamp schematic diagrams

[oweidah]

hi sirs,

appreciate it if you would post links to schematic diagrams / circuit designs for tube preamps using the ff: tube types : 6sn7 * 12sn7 * 6DJ8 * 12AX7 * 12AU7. great help for budding diy'rs and newbie tube enthusiast like me.

tia

[bumblebee]

Dami sa diyAudio.

[oweidah]

Dami sa diyAudio.

tnx

[Jagner]

you may want to check Claudio Bonavolta's site.  He has a schematic for a 12au7, components of which are readily available in the Guadalupe electronic shops  .  I built myself a 12au7 preamp using that circuit diagram.

[JojoD818]

try Google, tapos mag start ka ng thread na "How to build a tube preamp".

[oweidah]

sirs jagner and jojod818...thanks! 

[ATJr.]

hey oweidah,

have you bought a multitester , some handtools and soldering iron already? tubes are a good way to get started, they're fun and forgiving of a lot of mistakes except one, never touch the B+ with your bare hands...

start with the foreplay schematic i posted, while you are at it, go over to www.tubecad.com and see the writings of john broskie, especially about common cathode circuits, of load lines and stuff...you'll get to understand how tube amplifier works...this should be very easy if you have engineering background....

[oweidah]

hey oweidah,

have you bought a multitester , some handtools and soldering iron already? tubes are a good way to get started, they're fun and forgiving of a lot of mistakes except one, never touch the B+ with your bare hands...

start with the foreplay schematic i posted, while you are at it, go over to www.tubecad.com and see the writings of john broskie, especially about common cathode circuits, of load lines and stuff...you'll get to understand how tube amplifier works...this should be very easy if you have engineering background....

sir 2ny, tnx. i aint  no diy'r sir, just an audio hobbyist starting to enrich my scant knowledge of the intriguing world of valves.