It is currently Mon Mar 16, 2020 7:41 pm

All times are UTC - 7 hours



Post new topic Reply to topic  [ 54 posts ]  Go to page Previous  1, 2, 3, 4  Next
Go to page Previous  1, 2, 3, 4  Next
Author Message
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 1:46 pm
Offline
Rock Star
Rock Star

Joined: Mon Apr 05, 2010 2:37 pm
Posts: 8708
Location: Natural Bridge, Virginia
stratele52 wrote:
No . This is a very basic subject ; removing 2 tubes or attenuator ......


You just have to keep things very simple for some people and even then they may not get it. :wink:

_________________
Bill

Image


Top
Profile
Fender Play Winter Sale 2020
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 2:27 pm
Offline
Rock Star
Rock Star
User avatar

Joined: Sun Dec 21, 2008 8:29 am
Posts: 4238
Location: Pgh Pa
But I don't understand, Do I remove the 2 tube at the same time or after I plug the guitar in. Which tubes the big ones or the small ones. What if I remove 1 tube and use half of an Attenuator. So many questions :roll:


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 3:15 pm
Offline
Rock Star
Rock Star

Joined: Mon Apr 05, 2010 2:37 pm
Posts: 8708
Location: Natural Bridge, Virginia
tbazzone wrote:
But I don't understand, Do I remove the 2 tube at the same time or after I plug the guitar in. Which tubes the big ones or the small ones. What if I remove 1 tube and use half of an Attenuator. So many questions :roll:


Better check with the 100 new members that joined today. :wink:

_________________
Bill

Image


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 3:24 pm
Offline
Rock Icon
Rock Icon
User avatar

Joined: Wed Mar 31, 2010 12:48 am
Posts: 26417
Location: Tombstone Territory
bluesky636 wrote:
Better check with the 100 new members that joined today. :wink:


Image

:mrgreen:

Arjay

_________________
"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 5:48 pm
Offline
Professional Musician
Professional Musician

Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
Nice 8)

_________________
Image


Last edited by Toppscore on Tue Jul 10, 2012 5:59 pm, edited 1 time in total.

Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 5:51 pm
Offline
Professional Musician
Professional Musician

Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
stratele52 wrote:
No . This is a very basic subject ; removing 2 tubes or attenuator ......


Good. Makes sense.
Never know when pulling tubes or components as to what can happen.[/quote]

_________________
Image


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 5:52 pm
Offline
Professional Musician
Professional Musician

Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
bluesky636 wrote:
stratele52 wrote:
No . This is a very basic subject ; removing 2 tubes or attenuator ......
You just have to keep things very simple for some people and even then they may not get it. :wink:


You never know. Simple. :wink:

_________________
Image


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 5:56 pm
Offline
Professional Musician
Professional Musician

Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
tbazzone wrote:
But I don't understand, Do I remove the 2 tube at the same time or after I plug the guitar in. Which tubes the big ones or the small ones. What if I remove 1 tube and use half of an Attenuator. So many questions :roll:


Gotta keep it simple. Remove tubes one at a time. Electricity on for you :shock:
Half attenuators are not fulfilling :roll: :roll:
Too many responses. Keep them coming Tba :idea: :idea: :idea: You'll get it :lol: :lol: :lol:

_________________
Image


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 5:57 pm
Offline
Professional Musician
Professional Musician

Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
bluesky636 wrote:
Better check with the 100 new members that joined today. :wink:


You know, checking with new members is a good thing :wink:

_________________
Image


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 5:59 pm
Offline
Professional Musician
Professional Musician

Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
Retroverbial wrote:

Image Arjay


Pocket pool puts a great smile on your face :lol: :lol: :lol: :lol: :lol: :lol:

_________________
Image


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 6:18 pm
Offline
Aspiring Musician
Aspiring Musician
User avatar

Joined: Sat Mar 31, 2012 6:38 am
Posts: 593
Toppscore wrote:
Retroverbial wrote:

Image Arjay


Pocket pool puts a great smile on your face :lol: :lol: :lol: :lol: :lol: :lol:


Touche

_________________
...I for one, sure would appreciate the return of intelligent conversation, spirit of assistance and the simple yet effective ignoring of those who can't seem to hang with that...
Best regards,
rob


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Tue Jul 10, 2012 8:56 pm
Offline
Professional Musician
Professional Musician

Joined: Fri Jun 26, 2009 6:53 pm
Posts: 2252
Location: Harvard IL
Getting back to the 6V6 substitution, Beemer do you think Phillips JAN 6V6 GT tubes could handle the plate voltage(475)? They're 1986 iteration NOS. Art

_________________
None of Us are free, if One of Us is chained !


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Wed Jul 11, 2012 3:36 am
Offline
Aspiring Musician
Aspiring Musician
User avatar

Joined: Sun Apr 06, 2008 12:07 pm
Posts: 383
stratele52 wrote:
+1 aclempoppi.

With two tubes removed, the amp won't play at half level, and 50 watts is a very loud too.


+1

Theoretically, (if memory serves me/someone please correct if this is wrong):
10 watts will give approximately 1/2 the volume of 100 watts. It would take 1000 watts to achieve approximately 2 times the volume of 100 watts. So pulling 2 tubes from a 4 tube amp cuts the watts in half, which doesn't cut the volume in half.
(Theoretical of course, your mileage may differ :)


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Wed Jul 11, 2012 4:21 am
Offline
Aspiring Musician
Aspiring Musician
User avatar

Joined: Sat Mar 31, 2012 6:38 am
Posts: 593
Interesting.

_________________
...I for one, sure would appreciate the return of intelligent conversation, spirit of assistance and the simple yet effective ignoring of those who can't seem to hang with that...
Best regards,
rob


Top
Profile
Post subject: Re: 4-Power Tubes * 2-Power Tubes or Attenuate All Power Tub
Posted: Wed Jul 11, 2012 7:39 am
Offline
Rock Star
Rock Star
User avatar

Joined: Sat Jul 03, 2010 2:18 pm
Posts: 6544
" Getting back to the 6V6 substitution, Beemer do you think Phillips JAN 6V6 GT tubes could handle the plate voltage(475)? They're 1986 iteration NOS. "

Philips JAN 6V6GT can handle a lot of anode voltage. Just be sure to keep the idle bias current down, so that the idle wattage of dissipation = no more than 10 watts. I like to be sure that the grid stoppers and screen grids are in tolerance, too. Using good heat-resistant, metal oxide ones helps as both sit on the socket, directly below the output tubes and the heat they generate.

Really, only NOS and selected JJ 6V6S (the ones with the modified 5881 guts) can handle that kind of plate voltage for any length of time.

To maintain the 6L6GC "tone," a good mil spec GTA is a nice tube. Many good brands. Best luck I've had is with the slightly taller 1960's TungSol 6V6GTA.


Top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 54 posts ]  Go to page Previous  1, 2, 3, 4  Next
Go to page Previous  1, 2, 3, 4  Next

All times are UTC - 7 hours

Fender Play Winter Sale 2020

Who is online

Users browsing this forum: No registered users and 2 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

Search for:
Jump to: