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 16 Sep 2019, 04:15

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 247 posts ]  Go to page Previous  1 ... 19, 20, 21, 22, 23, 24, 25  Next
Author Message
 Post subject: Re: 6EM7 power amp
PostPosted: 15 Nov 2013, 07:03 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5134
Location: Australia
Geek wrote:
Hrm, nope! 90% Dutch Reformed in my neck of farmtown.

I would ask what is Dutch Reformed but it would be off thread.

_________________
Projects:"retro2308" - chip based headphone amp | ”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 15 Nov 2013, 07:37 
Offline
User avatar

Joined: 08 Aug 2009, 03:11
Posts: 2229
Location: Chilliwack, BC
https://en.wikipedia.org/wiki/Christian ... th_America

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 15 Nov 2013, 08:27 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5134
Location: Australia
Geek wrote:
https://en.wikipedia.org/wiki/Christian_Reformed_Church_in_North_America

Took a look. Ta.

_________________
Projects:"retro2308" - chip based headphone amp | ”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 16 Nov 2013, 19:52 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5134
Location: Australia
Just won on eBay NOS NIB 2 X RCA 6EM7. Does this mean another amp?

_________________
Projects:"retro2308" - chip based headphone amp | ”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 17 Nov 2013, 04:04 
Offline
User avatar

Joined: 08 Aug 2009, 03:11
Posts: 2229
Location: Chilliwack, BC
Or a backup pair. Baby Amp eats a set every 1-1.5 years (running 16H/day)

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 17 Nov 2013, 07:06 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5134
Location: Australia
Geek wrote:
Or a backup pair. Baby Amp eats a set every 1-1.5 years (running 16H/day)

Yes at this point a backup pair.

_________________
Projects:"retro2308" - chip based headphone amp | ”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 17 Nov 2013, 12:13 
Offline
Project Author
User avatar

Joined: 06 Apr 2009, 10:08
Posts: 1590
Location: US Pacific Northwest
Geek wrote:
Baby Amp eats a set every 1-1.5 years (running 16H/day)
Wow! You run that amp 16 hours a day? Impressive!

Most of my amps are being run hard if they get 4 or 5 hours a day.

_________________
Matt
It's all about the Glass!
http://www.CascadeTubes.com
Cascade Tubes Blog


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 17 Nov 2013, 17:20 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5134
Location: Australia
Suncalc wrote:
Geek wrote:
Baby Amp eats a set every 1-1.5 years (running 16H/day)
Wow! You run that amp 16 hours a day? Impressive!

Most of my amps are being run hard if they get 4 or 5 hours a day.

On average my tubies run about 4 hours a day across seven days. When not working on at 1:30 to 5:30pm. If the wife is away not unusual to go from 1pm to midnight.

_________________
Projects:"retro2308" - chip based headphone amp | ”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 18 Nov 2013, 02:18 
Offline
User avatar

Joined: 08 Aug 2009, 03:11
Posts: 2229
Location: Chilliwack, BC
Suncalc wrote:
Geek wrote:
Baby Amp eats a set every 1-1.5 years (running 16H/day)
Wow! You run that amp 16 hours a day? Impressive!

Most of my amps are being run hard if they get 4 or 5 hours a day.


For several years, she was being run 20+ hours. Had the TV and music source hooked to it. The wife and I ran opposite shifts, so it was either amplifying her TV or my music all the time.

Cheers!

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


Top
 Profile  
 
 Post subject: Re: 6EM7 power amp
PostPosted: 18 Nov 2013, 05:48 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 5134
Location: Australia
Geek wrote:
Suncalc wrote:
Geek wrote:
Baby Amp eats a set every 1-1.5 years (running 16H/day)
Wow! You run that amp 16 hours a day? Impressive!

Most of my amps are being run hard if they get 4 or 5 hours a day.


For several years, she was being run 20+ hours. Had the TV and music source hooked to it. The wife and I ran opposite shifts, so it was either amplifying her TV or my music all the time.

Cheers!

Lodda hours. Keep a good stock of tubes and the squirrel (ferret in Australia) on the wheel.

_________________
Projects:"retro2308" - chip based headphone amp | ”Calibre 834” - tube phono MM preamp | ”najah” - Raw 180W Tripath Class D power amp | "Icon" - Shuguang CV-181Z preamp


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 247 posts ]  Go to page Previous  1 ... 19, 20, 21, 22, 23, 24, 25  Next

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 13 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