What did I actually build?

ted01 · Post by **ted01** » Thu Apr 03, 2008 10:33 pm

Hey gang,

I recently finished building an amp using the schematic titled - "1997 Humble Overdraft Specimen, Revision 1.2". I just went looking for where I got that schematic and I'll be darned if I can find the source. What exactly have I built? (I know, I know, an amp....). Any history on where this schematic came from? Any degree of authenticity? I'll say this, while I'm not a guitar player, I have had several dudes who are players use this amp and they seem to like the sound (might just being polite...).

Just wondering what I built...
Ted

odourboy · Post by **odourboy** » Fri Apr 04, 2008 3:09 am

You must have built this one (attached). I got that several years ago from RumbleHeaven, now SchematicHeaven.com (I think). I can't tell you it's history, but it's a stripped down Dumble HRM style amp.

ted01 · Post by **ted01** » Fri Apr 04, 2008 4:01 pm

Odourboy,

That's the one. Pardon my ignorance, but what does HRM stand for? Anybody else build one of these? Any history?

Ted

Funkalicousgroove · Post by **Funkalicousgroove** » Fri Apr 04, 2008 4:32 pm

You just built a Dumble without a Mid-Boost or Rock/jazz switch.

HRM is the tone controls after the overdrive stage.

odourboy · Post by **odourboy** » Fri Apr 04, 2008 4:40 pm

ted01 wrote:Odourboy,

That's the one. Pardon my ignorance, but what does HRM stand for? Anybody else build one of these? Any history?

Ted

Ted,

Read this: http://tubenexus.com/2008/04/03/whats-a ... p-you-ask/

ted01 · Post by **ted01** » Fri Apr 04, 2008 7:51 pm

Thanks guys!! That was a great link and helped me understand what I've done.

What is the most "popular" DIY build? I saw that the #124 was and is referenced often. Is this what most folks are building?

I'm having a blast messing around with this stuff. It makes it easier to understand the theory when ya' got something you can easily mess with.

ted

odourboy · Post by **odourboy** » Sat Apr 05, 2008 3:16 am

ted01 wrote:What is the most "popular" DIY build? I saw that the #124 was and is referenced often. Is this what most folks are building?

No one else has responded so I'll take a stab...

124 gets discussed a lot because I think it's a bit of an anomoly but I'm not sure it's all that popular a build. The D'Lite is probably more popular, at least as an initial build. The 6V6 version has more modest transformer requirements so it's a more economical project with lots of people to give advice if you stumble or want advice on mods.

The 101 HRM & non-HRM (schematics posted by HiGain in the Dumble Files section) seem to be popular baseline builds also.

The 100W projects are a more 'serious' commitment - greater expense and complexity (and weight

).

My 2 cents

Structo · Post by **Structo** » Sat Apr 05, 2008 4:39 pm

odourboy wrote:
ted01 wrote:What is the most "popular" DIY build? I saw that the #124 was and is referenced often. Is this what most folks are building?
No one else has responded so I'll take a stab...

124 gets discussed a lot because I think it's a bit of an anomoly but I'm not sure it's all that popular a build. The D'Lite is probably more popular, at least as an initial build. The 6V6 version has more modest transformer requirements so it's a more economical project with lots of people to give advice if you stumble or want advice on mods.

The 101 HRM & non-HRM (schematics posted by HiGain in the Dumble Files section) seem to be popular baseline builds also.

The 100W projects are a more 'serious' commitment - greater expense and complexity (and weight ).

My 2 cents

And muscle (LOUD):lol:

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