Tweeked D'Lite Schematic

JimiB · Post by **JimiB** » Sat Dec 22, 2007 8:59 pm

Is this how you did the tonestack and PAB kleinm?

Structo · Post by **Structo** » Sun Dec 23, 2007 1:16 am

never mind.....

greiswig · Post by **greiswig** » Mon Dec 24, 2007 11:37 pm

So if I understand this correctly, at least some of the changes (dropping string, swamper resistors, etc.) that kleinm came up with here are designed to get the best out of a D'Lite that runs 6L6's instead of 6V6's. Is that right? Does it matter which OT one has? (I have the 8k Vibro tranny in my build, FWIW...

brownnote · Post by **brownnote** » Tue Dec 25, 2007 12:01 am

greiswig wrote:So if I understand this correctly, at least some of the changes that kleinm came up with here are designed to get the best out of a D'Lite that runs 6L6's instead of 6V6's. Is that right? Does it matter which OT one has? (I have the 8k Vibro tranny in my build, FWIW...

The 8K vibro type DL OT will work very well with most or all of the suggestions.

You don't need to run 6L6's to get great tone, I know some will disagree, but your ears will tell you...

If you try the suggestions in the layout posted, and are not satisfied, try the BM PI in the mix.

Fortunately, there's enough info on the forum for anyone to tweak their d'lite to taste.

greiswig · Post by **greiswig** » Tue Dec 25, 2007 6:13 am

brownnote wrote:
greiswig wrote:So if I understand this correctly, at least some of the changes (dropping string, swamper resistors, etc.) that kleinm came up with here are designed to get the best out of a D'Lite that runs 6L6's instead of 6V6's. Is that right? Does it matter which OT one has? (I have the 8k Vibro tranny in my build, FWIW...
The 8K vibro type DL OT will work very well with most or all of the suggestions.

You don't need to run 6L6's to get great tone, I know some will disagree, but your ears will tell you...

If you try the suggestions in the layout posted, and are not satisfied, try the BM PI in the mix.

Fortunately, there's enough info on the forum for anyone to tweak their d'lite to taste.

Brownnote, you guys came up with a great amp AS IS. I really appreciate it!

Mainly what I'm trying to do here is to learn: kleinm and some others have made some changes to their D'Lites that really made their amp magic to them, and I don't have the know-how to understand why they made them. So I'm trying to figure out whether changes like the dropping string changes and swamper resistors were done because of the change in tubes being run, or because of some other factor? If they weren't done to accommodate 6L6's, it would be really helpful to know what their purpose was, and what the sonic effects of each is expected to be? I know all the pieces have to work together as one, but I like understanding each piece's contribution to the whole.

Structo · Post by **Structo** » Thu Dec 27, 2007 8:34 pm

brownnote wrote:
mdroberts1243 wrote:I've tried to capture the consensus of tweeks to the Normster/Brown-Note D'Lite in an updated schematic.

Info comes from the recent posts, including the very detailed report by Kleinm... http://ampgarage.com/forum/viewtopic.php?t=4170 and the discussion that ensued at: http://ampgarage.com/forum/viewtopic.php?t=4153

Kudos to all that participated, especially DogEars, Kleinm (thanks for the details in your post) and Normster.

Please let me know if there are any changes required.
Hi Mark, question..where are the dropping string values on the schematic coming from?

Here's a layout using the dropping string referenced in kleinm's post:

http://www.brownnote.net/layouts/dlite_ ... weeked.jpg

Thought I would let you know that this layout has the incorrect wiring to the filter board, namely the OT tap and standby wire.

Structo · Post by **Structo** » Thu Dec 27, 2007 9:02 pm

Here is the correction:

odourboy · Post by **odourboy** » Thu Dec 27, 2007 9:24 pm

Crikey!! Talk about letting that smoke out!

greiswig · Post by **greiswig** » Fri Jan 11, 2008 10:47 pm

brownnote wrote:
JimiB wrote:Is the pre OD network drawn correctly on this?
Also Klienm stated he was using the Bluesmaster PAB.
The pre-OD is a series cap between CL2 and OD1 in this case a .02/.05 with a 10M load to ground.

you're right...I didn't change the PAB...put that on the list of revisions.

What is the purpose/effect of this network? Is it just to decouple the gain stages, or what?

mdroberts1243 · Post by **mdroberts1243** » Sat Jan 12, 2008 1:28 am

greiswig wrote:
brownnote wrote:
JimiB wrote:Is the pre OD network drawn correctly on this?
Also Klienm stated he was using the Bluesmaster PAB.
The pre-OD is a series cap between CL2 and OD1 in this case a .02/.05 with a 10M load to ground.

you're right...I didn't change the PAB...put that on the list of revisions.
What is the purpose/effect of this network? Is it just to decouple the gain stages, or what?

This cap is in series with the existing coupler... so it makes a much smaller cap... limits the bass getting into the OD.

I'm thinking that the 10M ground reference should preceed the cap though... to provide a ground reference between the two caps... anybody else think the same?

odourboy · Post by **odourboy** » Sat Jan 12, 2008 2:56 am

mdroberts1243 wrote: I'm thinking that the 10M ground reference should preceed the cap though... to provide a ground reference between the two caps... anybody else think the same?

+1

kleinm · Post by **kleinm** » Sat Jan 12, 2008 4:26 am

+1

On my build, the 10M is on the input side of the 0.05uF. You can see it hanging across from the 0.05uF to the ground side on the V1 Rk/Ck combinations.

mdroberts1243 · Post by **mdroberts1243** » Sat Jan 12, 2008 4:37 pm

kleinm wrote:+1

On my build, the 10M is on the input side of the 0.05uF. You can see it hanging across from the 0.05uF to the ground side on the V1 Rk/Ck combinations.

Schematic is updated... Main Page v1.2

Deric · Post by **Deric** » Mon Jan 14, 2008 12:27 am

What wattage rating do I need for the 10M resistor? Mouser has been backordered on 1 watters for a while. I have some 1/4 watt 22M resistors. Can I use 2 of these in parallel?

mdroberts1243 · Post by **mdroberts1243** » Mon Jan 14, 2008 12:32 am

Deric wrote:What wattage rating do I need for the 10M resistor? Mouser has been backordered on 1 watters for a while. I have some 1/4 watt 22M resistors. Can I use 2 of these in parallel?

I don't think the wattage would be critical at all in that location... nor the value... 2x 22M in parallel should be fine.

The Amp Garage

Tweeked D'Lite Schematic

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