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

First Project.... and Hello
First Project.... and Hello
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Old 4th January 2009, 01:18 AM   #1
wburgess is offline wburgess  United Kingdom
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Default First Project.... and Hello

Firstly... Hello!

This is my first post on diyaudio but certainly not my first visit, this site has been a priceless resource in my quest to understand how those little valves work!

So thank you for all your help so far....

My main question is... I'm looking to start my first diy audio project and would love it to be a nice little valve headphone amp. Is this a good start?

Also, I don't want to be playing around with voltages that are too high at this moment, so again is a headphone amp a good choice!

And lastly, I would have jumped into diy audio quite a while ago, but the risks do worry me, am I being over cautious.

Kind Regards,

Will
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Old 4th January 2009, 01:26 AM   #2
DigitalJunkie is offline DigitalJunkie  United States
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I think a small headphone amp would be a good start.

You're correct about the high voltages,Have a look over this thread:
http://www.diyaudio.com/forums/showt...threadid=30172

If you need any help feel free to ask,someone will help you out.
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Old 4th January 2009, 02:30 AM   #3
VictoriaGuy is offline VictoriaGuy  Canada
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Location: Victoria, BC
First Project.... and Hello
Default Re: First Project.... and Hello

Quote:
Originally posted by wburgess

Also, I don't want to be playing around with voltages that are too high at this moment, so again is a headphone amp a good choice!

And lastly, I would have jumped into diy audio quite a while ago, but the risks do worry me, am I being over cautious.

Will-
Welcome! Tubes are way more fun than solid state stuff.

It's a good idea to treat these things with respect, and you are probably 'careful by nature' by the sound of your comments. No need to be terrified, though....
If a headphone amp is something you want to have anyway, it could be a good first project.
Any project that's connected to the AC (residential) lines has the potential for fatal consequences and deserves to be treated with respect. So a headphone amp with an AC-connected power supply will not be that much 'safer' than a run-of-the-mill amp to drive speakers.

Keep your wits about you, double check, ask questions, don't work when you are tired, one hand in your pocket, etc etc

There are lots of good safety tips here at diyaudio and on the web- use them.

If you have an amateur radio club in your community, you might be able to hook up with an 'old guy' from the tube era who could guide you a bit at first.

My advice would be to be respectful and careful, but not frightened.

Cheers
John
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Old 4th January 2009, 02:38 AM   #4
korneluk is offline korneluk  United States
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Default Re: First Project.... and Hello

Quote:
Originally posted by wburgess

My main question is... I'm looking to start my first diy audio project and would love it to be a nice little valve headphone amp.
...
Also, I don't want to be playing around with voltages that are too high at this moment, so again is a headphone amp a good choice!
Will,

Here's a low-voltage simple single-stage, two-tube headphone amp.

Click the image to open in full size.

Follow the links for more tube circuits:
http://webpages.charter.net/dawill/t..._Circuits.html

Enjoy,

-- josť k.
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Old 4th January 2009, 04:41 PM   #5
wburgess is offline wburgess  United Kingdom
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Join Date: Jan 2009
Thats great guys, thanks.

I'm just getting into real headphone listening (thank you Grado Labs) and the headphone opamp in my audiolab isn't up to scratch as expected!

Right, off to read up about power supplies and try and understand impedance!

Regards,

Will
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