Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: PJTHEDJ777 on January 06, 2013, 02:41:32 pm

Title: HELP WITH STEREO PREAMP BUILD
Post by: PJTHEDJ777 on January 06, 2013, 02:41:32 pm

DOES ANYONE KNOW WHAT TUBES ARE USED IN THE STEREO PREAMP

DOES ANYONE HAVE A PARTS LIST FOR IT

Title: Re: HELP WITH STEREO PREAMP BUILD
Post by: plexi50 on January 06, 2013, 06:53:01 pm

It depends on what preamp circuit and style you want to build. There are many different preamp designs using a variation of different preamp tubes. You need to find a schematic or layout of a particular stereo preamp and then build it. Most if not all parts will be listed on the schematic

Title: Re: HELP WITH STEREO PREAMP BUILD
Post by: stratele52 on January 07, 2013, 04:42:33 am

I have an old Conrad Johnson stereo preamp. it use 12AX7 , 12AT7 tubes

http://www.conradjohnson.com/It_just_sounds_right/a-PV7.html (http://www.conradjohnson.com/It_just_sounds_right/a-PV7.html)


Shemamtic are avalaible here ( free) but they are very low quality