what tube manufacture of 6550?? - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 30th May 2004, 09:58 AM   #1
diyAudio Member
 
Join Date: May 2001
Location: Denmark
Question what tube manufacture of 6550??

Hi I have buyed a all tube bass amp 300W at ebay when i got it the output tube had broken durieng transportation.

http://www.eden-electronics.com/VT300.html

So i have to replace with 6 match tubes 6550.
the tube that was inside was from ruby tube's

now im not sure what tube is best ´reliebel i know that groove tubes are used in ampeg svt.

does any body know what is the best tube if the price is not to high i'll be happy

thanks jc dk.
  Reply With Quote
Old 2nd June 2004, 11:53 PM   #2
adamamp is offline adamamp  Canada
diyAudio Member
 
Join Date: Mar 2004
Location: East of Eden
For HiFi I like the JJ KT88, but I have not seen boxs of 6 matched.
Mind you I never needed more than 4, you lucky guy
For guitar the JJs maybe a bit clean with too much headroom, but for bass you should be rockin! Just my $.02, user results may vary.
  Reply With Quote
Old 3rd June 2004, 12:08 AM   #3
diyAudio Member
 
Join Date: Jan 2004
Location: nowhere
There is Electro Harmonix
Svetlana or Sovtek

I choose Ither Svetlana or Electro Harmonix

If you want a rugged tube then go for the KT88 or KT90's they both meet and exceed 6550 specs however the amplifier may need to be modified, unsure...
Click the image to open in full size.
By the looks of the internal design of the amplifier KT90's are out of the question although the plate colour and base type remind me of the Svetlana 6550/KT88..

So I'd say /if/ this amp can use Svetlana 6550's so go for Svetlana.

Get a matched six if you don't care for cost, you might have matching problems if you buy a single or pair then just pop em in the place of broken ones.

It would help a great deal if you could post the mu of each tube in this amp so as to get a better understanding.

I think the JJ 6550's are too fat for this purpose though unless you are willing to remove the tube brace support that goes over the tubes?

It would remove any chance of heavy transportation which is always a factor in moving bands...

Anyone else have opinions upon the mechanical design of different brand tubes and their ability to replace the Ruby tubes role in this amplifier?
  Reply With Quote
Old 4th June 2004, 05:52 AM   #4
imix500 is offline imix500  United States
diyAudio Member
 
imix500's Avatar
 
Join Date: Mar 2004
Location: Nashville, TN
Just had to say... Wow, that's a gorgeous bass head. Eden's just kick a**.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Looking for Schematic 6550 tube amp triode mode more than 35Watt ? calico88 Tubes / Valves 26 10th August 2009 02:49 PM
Tube PS using 6H30 into a 6550 johnmarkp Power Supplies 0 6th May 2009 10:22 PM
Tube 6550 to test aduri Tubes / Valves 2 12th February 2009 09:19 PM
TV-7D/U Tube setting --- 6550 Apex Jr Tubes / Valves 4 22nd November 2008 04:58 PM
what tube replacement 6550?? partyjups Instruments and Amps 7 23rd July 2004 11:55 AM


New To Site? Need Help?

All times are GMT. The time now is 04:44 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2