DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 19 Apr 2019, 04:16

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: 30 Mar 2019, 18:43 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5061
Location: Australia
Yet another tube phono pre only this time a different schematic and kit. This is based on the Esoteric 834p phono preamp which has excellent reviews from around 2005. All high end parts and the first time I have seen Vishay caps. Chassis has been drilled and sprayed. This time I mounted the components on the back to allow the tubes to pop up. Time for assembly.
Attachment:
57B18102-F83D-438A-8757-A0D7F2C810C5.jpeg
Attachment:
B82E74F0-1A5C-443F-A5F1-C977F908068E.jpeg


This post has a file attachment. Please login or register to access it. Only Registered Members may view attached files.


_________________
Projects:”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp | "Njira" - 180W Tripath Class D power amp


Top
 Profile  
 
PostPosted: 31 Mar 2019, 06:03 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5061
Location: Australia
Finished the phono stage “Calibre 834”. The external PS I was using for my current tube phono pre needed a simple mod to work with three tubes now and not two. Sounds excellent.

Tubes are to short plate (very important) Sovteks 12AX7 and a GE 12AU7 driver.
Attachment:
B0E11D61-A3C7-4181-B83C-2F71FDAD09ED.jpeg
Attachment:
B5EB9FEE-951B-48A4-9288-01E8A07CCE21.jpeg
Attachment:
8E6E7670-5E60-4AC4-99F4-7508EC00FDA8.jpeg


This post has a file attachment. Please login or register to access it. Only Registered Members may view attached files.


_________________
Projects:”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp | "Njira" - 180W Tripath Class D power amp


Top
 Profile  
 
PostPosted: 01 Apr 2019, 15:48 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5061
Location: Australia
Some will have picked up that the title should be EAR not EAT. EAT supply me the Class D amp modules. Guess I got a bit mixed up.

_________________
Projects:”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp | "Njira" - 180W Tripath Class D power amp


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: Woodo and 8 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy