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 9th November 2004, 07:10 AM   #1
diyAudio Member
 
Join Date: Nov 2002
Location: san diego
Question Help, Just Starting Out

I've spent the last week or so reading and reading this forum and many links posted.
I am beginner to electronics but hopefully can follow schematics. I really want to have/make a tube amp for listening to music. After all my researched Ive come to the conclusion: 1. I dont want to die. 2. I dont know whats the best project to start.
I've never worked with high voltage and after reading the perm thread on safety, I'm all scared now heh
So can anyone recommend me a good project to start, one where everythings been done for you and I just need to follow, build, and learn.
Also, I am in San Diego, CA, USA. Anyone out there from around here know of any groups or such I can start going to. Id really like to meet experienced people who could teach me.
Lastly, are there any must have books I could buy on the subject?

Thanks.

jon
  Reply With Quote
Old 9th November 2004, 07:37 AM   #2
diyAudio Member
 
Join Date: Nov 2002
Location: san diego
Looking at buying these books:

Valve Amplifiers, Third Edition - Morgan Jones
Building Valve Amplifiers - Morgan Jones

Any input on them?
  Reply With Quote
Old 9th November 2004, 08:06 AM   #3
SHiFTY is offline SHiFTY  New Zealand
diyAudio Member
 
SHiFTY's Avatar
 
Join Date: Jul 2002
Location: New Zealand
They are both good books, however I would suggest that you start with a single ended triode amplifier kit, or even a solid state kit. A kit will give you all the instructions, parts, chassis and components, makes things a lot easier, especially if you are new to electronics.

Have you heard about the ASL wave 8?
  Reply With Quote
Old 9th November 2004, 10:03 AM   #4
RIP
 
pedroskova's Avatar
 
Join Date: Dec 2002
Location: C'ville VA, USA
Bottlehead : nice kits and a large and friendly support forum if you run into any problems.
  Reply With Quote
Old 9th November 2004, 11:37 AM   #5
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
The Morgan Jones books are excellent. Unqualified "buy" recommendation.

Being reasonably scared is a good thing. Voltages should be treated with great respect and caution. But, like tigers, they can be tamed and handled with some experience. One great resource is local ham radio groups- you'll find older guys who have been dealing with HV circuits for many years, and some of them will be happy to supervise you through that first project.
__________________
"The way to deal with superstition is not to be polite to it, but to tackle it with all arms, and so rout it, cripple it, and make it forever infamous and ridiculous."- H. L. Mencken
  Reply With Quote
Old 9th November 2004, 11:47 AM   #6
diyAudio Member
 
Join Date: Nov 2002
Quote:

Being reasonably scared is a good thing.

Sy, nothing beats the thrill of having 500+ volts enter your body because of an unsafe act. Imagine the thrill when the voltage surges thru your hand and comes out the other side, your heart if its still beating that is has a pronounced rhythem problem now and you are wondering if a visit to the ER is in order. Your hand that made this mistake hurts for the next three or four days. Now you start to wonder if the next time will end up with a trip to the slab.

Yes, being reasonably scared is a very good thing!
  Reply With Quote
Old 9th November 2004, 05:32 PM   #7
kmj is offline kmj  Sweden
diyAudio Member
 
kmj's Avatar
 
Join Date: Feb 2004
Location: Falkenberg
http://www.boozhoundlabs.com/howto/

easy and cheap starterproject.
  Reply With Quote
Old 9th November 2004, 11:40 PM   #8
mcs is offline mcs  Denmark
diyAudio Member
 
Join Date: Aug 2003
Location: Denmark
And here's another:

http://dogstar.dantimax.dk/tubestuf/miniblk1.htm

Best regards,

Mikkel C. Simonsen
__________________
My personal electronics website
Remote control kits website
  Reply With Quote
Old 10th November 2004, 01:47 AM   #9
diyAudio Member
 
Join Date: Oct 2004
Location: Adelaide South Oz
Default G'day Jawbreak

One of the reoccurring posts here seems to be for a recommendation for a simple valve amp project for a beginner to valve electronics.

I see that you have said that you will be buying the Morgan Jones "Valve Amplifiers" book.

This was my first valve amp book purchase and the EL84 Ultralinear Push Pull (10W per channel) amplifier described in this book was my first valve amplifier project.

I now have 4 other valve amps and 2 solid state amps BUT the little EL84 remains one of my favourite amps.

For your peace of mind there are simple things to do when working on high voltages which if you get into the routine from day one will protect you.

Rules:
Before working on the cicruit:
1) Unplug from the mains
2) wait for high voltage capacitors to discharge
To make measurements on the circuit:
1) Turn it off and wait for high voltage capacitors to discharge
2) Use multimeter leads with a clip so that you can clip the negative lead onto 0V (or whatever reference is appropriate to the measurement)
3) One hand on the multimeter postive probe, the other in your pocket, tucked into your belt or behind your back etc.

Of course Rule 1 is keep your work area tidy.

I worked in Biomedical Engineering for many years so I can tell you with authority that it is electric current across the chest (passed the heart), e.g. from one hand to the other which is the most dangerous.

Cheers,
Ian
  Reply With Quote
Old 10th November 2004, 04:02 AM   #10
diyAudio Member
 
Join Date: Jan 2004
Location: malaysia
A tube project is very easy compared to a transistor project. You can build any single ended design and I bet it would sound better than most solid state amps. I built my first tube amp couple of months ago and I was suprised at how easy this is. The most important thing is that you have to be clear of what you are doing. I didnt have the luxury of being supervised, so I read alot before making decisions. Browse this forum for beginners project, ecl82 is a good project to start with.

About safety, live by 3 rules and you will be ok:

1. Make it a habit of disconnecting the plug before touching anything insisde.
2. Ground your chasis.
3. Use bleeder resistors.

Its hard to get a shock if you obey these three simple rules.
And of course, dont be shy about asking 'stupid' questions in this forum.
  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
Just starting GrooveCat Introductions 4 11th January 2008 02:37 PM
starting out ineedahobby Chip Amps 3 15th October 2007 08:31 PM
Starting with my first sub buggsson Subwoofers 5 20th September 2005 08:34 AM
Starting AMp up Wynand Chip Amps 2 25th August 2005 02:57 PM
starting over again... help! fazman Subwoofers 6 25th May 2005 08:26 PM


New To Site? Need Help?

All times are GMT. The time now is 10:56 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