want to build SE450TL - Page 3 - 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 18th February 2005, 03:35 AM   #21
day is offline day  Thailand
diyAudio Member
 
Join Date: Jun 2004
Location: rayong
wow!!! 6C4 p-pp look nice . if i need about 20watt how many tube can use. i aso have 50 of 6AQ5 but it si not triod.
Attached Images
File Type: jpg s4010026.jpg (69.9 KB, 109 views)
  Reply With Quote
Old 18th February 2005, 05:37 AM   #22
diyAudio Member
 
audiousername's Avatar
 
Join Date: Jul 2004
Location: Melbourne, Victoria
The 6AQ5 is probably more sutable for the output stage of audio amplifiers than the 6C4 - even if it isn't a triode, you can try triode-strapping it, or apply a large amount of local feedback around the output stage such that the problems with pentode-mode operation are greatly reduced.

Just for reference, some links to datasheets on Franks: 6C4, 6AQ5.

The number of valves you'll need for 20W will depend on whether they're run class A or class AB. But you have plenty, so it shouldn't be so much of a problem
__________________
Jason
  Reply With Quote
Old 18th February 2005, 06:40 AM   #23
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by day
i aso have 50 of 6AQ5
The 6AQ5 was the small bottle version of the 6V6. Quite similar to EL84/6BQ5 and except for some changes to the cathode R pretty much interchangeable. Lots & lots of stuff out there to look at to apply them to an amp.

Make a nice 1.5-2 W SE amp in triode, 4-5 W SE in pentode (search on the forum for RH84), 4 W in PP Clas A, 12-15 in AB PP.... and you could parallel for more power (althou likely at a sacrifice of coherency).



dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  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
build my first full ranger,let's build another one:a small fullrange high end pc-spea then_dude Full Range 2 30th November 2005 07:54 AM
Do i need to build main supply (240v) filter?Or build power distribution? thomgun_lc Chip Amps 9 16th September 2005 09:52 AM
build or buy navin Multi-Way 9 16th November 2004 04:36 AM
Looking to build a sub. jaybird Multi-Way 6 14th May 2003 12:52 AM


New To Site? Need Help?

All times are GMT. The time now is 07:29 AM.


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