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Post subject: Re: building a amplifier
Posted: Wed Apr 22, 2015 3:44 pm
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mhowell wrote:
stratele52 wrote:
lomitus wrote:
Please let me clarify...

When I said that "a Peavey Deuce isn't really THAT different from most Fenders that use 6L6 tubes (Bandmaster, Twin, etc)", I was basically talking about the sound and not the electronic design of the amps. .


What make sound from a amp ?

Electronics desing and technology ( solid state / tubes ) .

Don't waist you time , In the forum , only you you will believe this amp have same sound than a Fender or those who do not know amplifiers


Really? All this time I thought it was the speakers.



Put some Fender speaker on a Marshal amp , it will always sound like a Marshal. :lol:


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Post subject: Re: building a amplifier
Posted: Mon Aug 03, 2015 12:49 pm
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stratele52 wrote:
mhowell wrote:
stratele52 wrote:

What make sound from a amp ?

Electronics desing and technology ( solid state / tubes ) .

Don't waist you time , In the forum , only you you will believe this amp have same sound than a Fender or those who do not know amplifiers


Really? All this time I thought it was the speakers.



Put some Fender speaker on a Marshal amp , it will always sound like a Marshal. :lol:


To late for me. To my 54yo ears they all sound the same. Imagine someone did the speaker test but recorded it and you have to hear the comparison through cheap computer speakers. That's how good my ears are.

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Post subject: Re: building a amplifier
Posted: Mon Aug 03, 2015 1:10 pm
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mhowell wrote:
Imagine someone did the speaker test but recorded it and you have to hear the comparison through cheap computer speakers. That's how good my ears are.


It's how good anybody's ears are. For that reason, youtube demos are utterly worthless for determining the performance of any audio component be it guitar, amp, speaker, pickup, anything.

Arjay

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Post subject: Re: building a amplifier
Posted: Mon Aug 03, 2015 1:52 pm
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Retroverbial wrote:
mhowell wrote:
Imagine someone did the speaker test but recorded it and you have to hear the comparison through cheap computer speakers. That's how good my ears are.


It's how good anybody's ears are. For that reason, youtube demos are utterly worthless for determining the performance of any audio component be it guitar, amp, speaker, pickup, anything.

Arjay


+1


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Post subject: Re: building a amplifier
Posted: Mon Aug 03, 2015 8:48 pm
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Retroverbial wrote:
mhowell wrote:
Imagine someone did the speaker test but recorded it and you have to hear the comparison through cheap computer speakers. That's how good my ears are.


It's how good anybody's ears are. For that reason, youtube demos are utterly worthless for determining the performance of any audio component be it guitar, amp, speaker, pickup, anything.

Arjay


You misunderstand me. My ears are as good as the youtube demo even if I'm hearing it live.

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Post subject: Re: building a amplifier
Posted: Mon Aug 03, 2015 10:29 pm
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If that be the case then it doesn't matter what you play your guitar through......tubes, transistors, two Dinty Moore chili cans linked with some twine, whatever.

:lol:

Arjay

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Post subject: Re: building a amplifier
Posted: Tue Aug 04, 2015 12:16 am
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@the OP,

Have you priced out the individual components necessary ?

I think you'll be in for a massive shock... !!

Priced separately, you're easily gonna exceed the cost of a new or even vintage Amp, and I suspect that on a 1st build, you'll end up with something that doesn't sound as good or be as reliable.

Not only this, but your homemade's resale value will be about 20% of what you have in it and will take months (if not years) to sell.

I own a peavey amp that I love - a Delta Blues 115. Unfortunately, I'll be selling it because I live in a condo and it's just too much amp for home (Condo) use. I expect to take a bath on this perfect amp w/ no more than 20-25 hrs. playing time, but it's better than just having it sit in the corner.

You're much better off selling your Peavey on CL for whatever you can and put that money towards a new amp or a build if you're determined to do that.

None of this matters if your goal is to gain the experience and satisfaction of building an amp yourself. That's cool, but you'll pay dearly for both.

If you're simply looking for the least expensive alternative to your Peavey, a decent D.I.Y is not going to be it.

This past winter I built a great Pine cabinet with the intention of building my own Vibro-Champ 1X12 clone. But when I priced out all the components, it's much cheaper to buy a Vibro-Champ and use the head for this Cab. I already have 2 VCs - a '65 and a '68. I was going to sell one, but now I'm going to use it in my new Cab instead and save $300-$400 in the process.

The Fender re-issues are good value for money, though not as good as the originals, the possible exception being the '65 Princeton Reverb.

This really isn't a re-issue per se and is all-tube, incl. the rectifier. 'Course it isn't a Twin, but unless your doing the Stadium circuit, it'll be more than adequate for local gigs.

cheers!

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Post subject: Re: building a amplifier
Posted: Tue Aug 04, 2015 2:36 am
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I agree with Lightnin MN about building a amp ;

More expensive , low resale value and you never know how it will sound .

If no experience in soldering ; forget that .


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Post subject: Re: building a amplifier
Posted: Tue Aug 04, 2015 3:22 pm
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Retroverbial wrote:
If that be the case then it doesn't matter what you play your guitar through......tubes, transistors, two Dinty Moore chili cans linked with some twine, whatever.

:lol:

Arjay


I use a Mustang I and it sounds awesome...to my ears.

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Post subject: Re: building a amplifier
Posted: Wed Aug 05, 2015 5:18 am
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Retroverbial wrote:
If that be the case then it doesn't matter what you play your guitar through......tubes, transistors, two Dinty Moore chili cans linked with some twine, whatever.

You could actually say that about most really talented players. I'd choose Hendrix through a Line 6 over C.C. Deville through a vintage Super Reverb. :wink:

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Post subject: Re: building a amplifier
Posted: Mon Aug 24, 2015 5:04 pm
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As far as building an amp goes, I have thought about building an amp around two old GE 807 tubes that I have.

From what I've heard they're similar to 6L6 tubes but are designed as transmitting tubes instead of receiving tubes. They can handle more voltage on the plates - 600+ - so they can be biased for much higher output.

I need to research further but if that is true then I want to build a completely over-the-top, combo amp in a small Princeton Reverb sized cabinet. I might even use a PR faceplate. Not sure if the big transformers and a 12" speaker would fit.

It would cost a fortune to build because of the 'robustness' required of all the components and would weigh as much as a baby elephant (hyperbole). But just think of the fun it would be.

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Post subject: Re: building a amplifier
Posted: Tue Aug 25, 2015 1:30 am
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Why do you want to use these old tubes no amp's builder use ?


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Post subject: Re: building a amplifier
Posted: Tue Aug 25, 2015 6:10 am
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mhowell wrote:
As far as building an amp goes, I have thought about building an amp around two old GE 807 tubes that I have.

From what I've heard they're similar to 6L6 tubes but are designed as transmitting tubes instead of receiving tubes. They can handle more voltage on the plates - 600+ - so they can be biased for much higher output.

I need to research further but if that is true then I want to build a completely over-the-top, combo amp in a small Princeton Reverb sized cabinet. I might even use a PR faceplate. Not sure if the big transformers and a 12" speaker would fit.

It would cost a fortune to build because of the 'robustness' required of all the components and would weigh as much as a baby elephant (hyperbole). But just think of the fun it would be.



One thing about the 807... top anode cap. They are very good tubes. But, you must secure that top cap or risk 500+ volts shock. I believe that there are set-screw top cap adapter-plugs. I would not recommend this tube, if you are going to gig & haul-around this DIY amp. Just too dangerous.

You want more power than the 6L6GC... think about using the new TS 7581A (35 watt max). Or look into a KT-88 or 6550 powered DIY design.

http://d1c51ih66j7l74.cloudfront.net/ap ... G_4404.JPG


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Post subject: Re: building a amplifier
Posted: Tue Aug 25, 2015 12:01 pm
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BMW2002Ti wrote:
[
I would not recommend this tube, if you are going to gig & haul-around this DIY amp. Just too dangerous.

You want more power than the 6L6GC... think about using the new TS 7581A (35 watt max). Or look into a KT-88 or 6550 powered DIY design.

[/quote]


+1000


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Post subject: Re: building a amplifier
Posted: Tue Aug 25, 2015 2:03 pm
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BMW2002Ti wrote:
mhowell wrote:
As far as building an amp goes, I have thought about building an amp around two old GE 807 tubes that I have.

From what I've heard they're similar to 6L6 tubes but are designed as transmitting tubes instead of receiving tubes. They can handle more voltage on the plates - 600+ - so they can be biased for much higher output.

I need to research further but if that is true then I want to build a completely over-the-top, combo amp in a small Princeton Reverb sized cabinet. I might even use a PR faceplate. Not sure if the big transformers and a 12" speaker would fit.

It would cost a fortune to build because of the 'robustness' required of all the components and would weigh as much as a baby elephant (hyperbole). But just think of the fun it would be.



One thing about the 807... top anode cap. They are very good tubes. But, you must secure that top cap or risk 500+ volts shock. I believe that there are set-screw top cap adapter-plugs. I would not recommend this tube, if you are going to gig & haul-around this DIY amp. Just too dangerous.

You want more power than the 6L6GC... think about using the new TS 7581A (35 watt max). Or look into a KT-88 or 6550 powered DIY design.

http://d1c51ih66j7l74.cloudfront.net/ap ... G_4404.JPG


If for some reason more power that what the 6L6 can provide was needed then I would go with the 6550. If I were to DIY something that actually met all practical needs then 6V6s would likely be the power tubes of first choice.

If I actually did build an 807 beast I would hardly ever take it out cause it would be to heavy and I'm to lazy. The only reason to entertain the notion of such a monster is because the tubes are available and the silly novelty of the thing. The vision of plugging in what appears to be a PR and cranking it to five and rattling the timbers just seems like good clean fun. :lol:

The anode connection on 807s is definitely a safety concern that would have to be addressed - particularly with those monsters hanging from a chassis in a combo setup.

There was a discussion of 807s on ax84.com and from what I gathered they can 'schematically' plug into a 6L6 circuit. Obviously they want physically plug in but they can be biased just like a 6L6. They don't have to pushed to the limit. Most on ax84.com said the tone was good and the 807 is usually much cheaper than the 6L6.

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