Go Back   Home > Forums > >

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

Data Sheets
Data Sheets
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
Old 4th March 2021, 04:50 PM   #41
leadbelly is offline leadbelly  Canada
Account disabled at member's request
 
Join Date: Dec 2002
Location: Calgary, Alberta
Quote:
Originally Posted by mooreamps View Post
you watch your mouth , boy....
Oooo scary!
  Reply With Quote
Old 4th March 2021, 05:00 PM   #42
piano3 is offline piano3  United Kingdom
diyAudio Member
 
Join Date: Aug 2010
Location: London,UK
Actually, it could be useful if someone could draw up MORE CONSERVATIVE data sheets for (some) new production valves which are likely to meet an early demise if operated near the limits of the original specs. Also, I am sure many of us are guilty of thinking we discovered something through our own independent thought only to discover later that "there is nothing new under the sun".
  Reply With Quote
Old 4th March 2021, 08:38 PM   #43
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
 
Tubelab_com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
The early vintage (about 20 years ago) Chinese KT88's were known to blow up. I had one of them spark out so bad that the glass shattered, and I was running them well BELOW the typical ratings for a KT88 (35 watts of push pull audio power from a 400 volt supply).

On the flip side of that coin, I have a pair of 15 year old Shuguang twin plate 2A3's that are quite happy making almost 6 watts in SE on 380 volts. Do I recommend this, or desire to change the specs on the "2A3" just because these can eat 380 volts without issue? Would I put some of my old RCA's in that same amp? I don't think so.

Hey, my first "computer" came from the same company that made Tiger Amps, SWTPC. It ran a MC6800 chip at a blazing 921 KHz with 2 KB of RAM. By the time I had upgraded it to fill a whole workbench and dim the room lights on power up, it could beep out a simple song via three 8 bit parallel ports. A $2 pic chip or Arduino Nano could kick its butt right off the bench today. Next came the TRS-80 and the Apple II clones.

Then this little company about 20 miles north of me unleashed their "top secret" project and the world changed. A friend who was a PC board layout contractor on that project showed up at my house one day with a pickup truck bed full of scrap from their plant. I managed to build two complete computers from that scrap, his was a yet unseen IBM PC XT, and mine was an original 5 slot PC. Both with 256 KB memory and Shugart 360K floppy drives.
__________________
Tubelab, I blow stuff up so that you don't have to.
  Reply With Quote
Old 4th March 2021, 09:12 PM   #44
Duke58 is offline Duke58  United States
diyAudio Member
 
Join Date: Jan 2009
Y'all are very entertaining.

Maybe mooreamps is Gordon Moore?
  Reply With Quote
Old 4th March 2021, 09:25 PM   #45
v4lve lover is offline v4lve lover  Netherlands
diyAudio Member
 
Join Date: Aug 2010
Location: Surrounded by glass, no really my room is full of tubes
Data Sheets Data Sheets
Blimey, That Ouija board is out of stock
  Reply With Quote
Old 4th March 2021, 11:09 PM   #46
mooreamps is offline mooreamps  United States
diyAudio Member
 
Join Date: Apr 2012
Location: San Jose, Ca.
Quote:
Originally Posted by Duke58 View Post
Y'all are very entertaining.

Maybe mooreamps is Gordon Moore?

it's too bad... I would have shared this otherwise very obvious bias short-cut for a 300b amp. but I am sure if I did, the Valve Lizard would just put up on his website, and others who build 300b professionally would use it instead....
  Reply With Quote
Old 4th March 2021, 11:12 PM   #47
v4lve lover is offline v4lve lover  Netherlands
diyAudio Member
 
Join Date: Aug 2010
Location: Surrounded by glass, no really my room is full of tubes
Data Sheets Data Sheets
Current source? You said it was obvious. That was the first thing on my mind
  Reply With Quote
Old 4th March 2021, 11:38 PM   #48
leadbelly is offline leadbelly  Canada
Account disabled at member's request
 
Join Date: Dec 2002
Location: Calgary, Alberta
Quote:
Originally Posted by mooreamps View Post
it's too bad... I would have shared this otherwise very obvious bias short-cut for a 300b amp. but I am sure if I did, the Valve Lizard would just put up on his website, and others who build 300b professionally would use it instead....
Mocking MB won't win you any friends. The secret of yours I would like is how you got 9 watts out of an 6V6 in SE as claimed in your Youtube video. Do you have a datasheet for that?
  Reply With Quote
Old 4th March 2021, 11:51 PM   #49
mooreamps is offline mooreamps  United States
diyAudio Member
 
Join Date: Apr 2012
Location: San Jose, Ca.
Quote:
Mocking MB won't win you any friends.
him i don't need him... and no i'm not teaching him or anyone else how I would do a 300b build...
I'm a designer and a builder. You just a little internet troll.

Surface 3 Full Build - YouTube
  Reply With Quote
Old 5th March 2021, 12:29 AM   #50
v4lve lover is offline v4lve lover  Netherlands
diyAudio Member
 
Join Date: Aug 2010
Location: Surrounded by glass, no really my room is full of tubes
Data Sheets Data Sheets
Wow, i need to call my friend in the theoretical physics department. There has been a new element whose atomic mass trumps that of all known elements.
  Reply With Quote

Reply


Data SheetsHide this!Advertise here!
Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Needed: Tweeter data sheets and pairing recommendations Jennice Multi-Way 5 10th July 2004 08:02 PM
Power Transistor data Sheets... where to find Harlan Parts 3 21st February 2004 03:03 PM
Data sheets for japanese transistors? Cradle22 Parts 2 8th September 2003 11:22 AM
M5238 data sheets??? Christer Parts 5 30th March 2003 04:07 PM
Japanese data sheets HarryHaller Solid State 1 16th May 2002 06:54 AM


New To Site? Need Help?

All times are GMT. The time now is 03:36 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki