SSS again
Moderators: pompeiisneaks, Colossal
SSS again
I have a Peavey Mace, 6-6L6 2x12 combo a friend gave me. I want to build an SSS using it.
I took one of my ODS schematics and added the post PI driver, the filters and pasted in a generic Fender reverb.
Open questions: With more to come I'm sure
1) Driver values?
2) Where to insert the reverb?
3) PS node for driver and reverb
4) Who took my cheeze?
Low resolution file here.
[img1666]http://www.sweettoothband.com/temp/Mace_SSS_sm.jpg[/img]
High resolution here.
http://www.sweettoothband.com/temp/Mace_SSS.jpg
I took one of my ODS schematics and added the post PI driver, the filters and pasted in a generic Fender reverb.
Open questions: With more to come I'm sure
1) Driver values?
2) Where to insert the reverb?
3) PS node for driver and reverb
4) Who took my cheeze?
Low resolution file here.
[img1666]http://www.sweettoothband.com/temp/Mace_SSS_sm.jpg[/img]
High resolution here.
http://www.sweettoothband.com/temp/Mace_SSS.jpg
-
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Re: SSS again
If you are putting an Overdrive section in, as I did,(not true SSS, but a good addition) you might consider doing as I did and alternate between reverb and OD with relays (1 in and 1 out). That way the reverb doesn't spoil the OD tone.
Re: SSS again
Thx, I hadn't thought of that. I do like reverb on the OD but coming before the OD might be an issue.txbluesboy wrote:If you are putting an Overdrive section in, as I did,(not true SSS, but a good addition) you might consider doing as I did and alternate between reverb and OD with relays (1 in and 1 out). That way the reverb doesn't spoil the OD tone.
I'm still debating the OD, maybe yes, maybe no.
Re: SSS again
Funny that the other SSS threads are many pages long, this one ...
No comments on the schematic?
No comments on the schematic?
Re: SSS again
I wish I could help Bob, alas I know nothing about this amp.
Tom
Don't let that smoke out!
Don't let that smoke out!
Re: SSS again
Just 'cause you asked:
I'd build it without the OD and reverb first, but leaving all options open. Keep it simple and get the basic structure and tone of the SSS the way you want it. Then add the OD and reverb. I am not a fan of "springs", so if it were mine, I'd opt for the built in D'lator instead of 'verb. I think the OD is a good idea, though.
Just a simple redneck's opinion. I'll be watchin'.
D
I'd build it without the OD and reverb first, but leaving all options open. Keep it simple and get the basic structure and tone of the SSS the way you want it. Then add the OD and reverb. I am not a fan of "springs", so if it were mine, I'd opt for the built in D'lator instead of 'verb. I think the OD is a good idea, though.
Just a simple redneck's opinion. I'll be watchin'.
D
There are no stupid questions, just stupid people.......
- glasman
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Re: SSS again
Very nice on the schematic.
For driver value starting point, take a look at the fender super twin, it uses a 12AT7 for the driver.
I am sure that a number of tubes could be used for the driver. Depends one what the output tubes need for a grid swing to fully tickle them into submission . 12AT7 is a good choice, wide BW and decent current capability.
A 2400 ohm load p/p tranny with 600V will get a quad of KT88 to near 200W. Someday when I have time, I am going to build a Megoid for myself .
Gary
For driver value starting point, take a look at the fender super twin, it uses a 12AT7 for the driver.
I am sure that a number of tubes could be used for the driver. Depends one what the output tubes need for a grid swing to fully tickle them into submission . 12AT7 is a good choice, wide BW and decent current capability.
A 2400 ohm load p/p tranny with 600V will get a quad of KT88 to near 200W. Someday when I have time, I am going to build a Megoid for myself .
Gary
Located in the St Croix River Valley- Afton, MN
About 5 miles south of I-94
aka K0GWA, K0 Glas Werks Amplification
www.glaswerks.com
About 5 miles south of I-94
aka K0GWA, K0 Glas Werks Amplification
www.glaswerks.com
Re: SSS again
I think this is the first SSS schematic I've seen that has the step filters. Very Cool Bob. If you don't mind me asking, how did you get this info, and what kind of unsavory services did you have to render??Bob-I wrote:Funny that the other SSS threads are many pages long, this one ...
No comments on the schematic?
<i> "I've suffered for my music. Now it's your turn."</i>
Re: SSS again
Some SSS seem to be using the 12BH7 ampeg section.
Re: SSS again
Thx Gary. I'll look at the super twin. I'll be running 6 x 6L6s on this one. Peavey claims 160 watts, plenty for me.glasman wrote:Very nice on the schematic.
For driver value starting point, take a look at the fender super twin, it uses a 12AT7 for the driver.
I am sure that a number of tubes could be used for the driver. Depends one what the output tubes need for a grid swing to fully tickle them into submission . 12AT7 is a good choice, wide BW and decent current capability.
A 2400 ohm load p/p tranny with 600V will get a quad of KT88 to near 200W. Someday when I have time, I am going to build a Megoid for myself .
Gary
Re: SSS again
crbowman wrote:I actually searched months ago and found these posted here. I forget who posted them but they look like excellent work. The final will most likely have fewer steps, 7-8.Bob-I wrote:I think this is the first SSS schematic I've seen that has the step filters. Very Cool Bob. If you don't mind me asking, how did you get this info, and what kind of unsavory services did you have to render??
Re: SSS again
M Fowler wrote:Some SSS seem to be using the 12BH7 ampeg section.
Yes, and I saw an odd post stating that the bias supply needs to be -300VDC. I don't understand that.
Re: SSS again
Tom
Don't let that smoke out!
Don't let that smoke out!
Re: SSS again
Yow! Seems like you could bias yourself right into utter silence.Bob-I wrote:M Fowler wrote:Some SSS seem to be using the 12BH7 ampeg section.
Yes, and I saw an odd post stating that the bias supply needs to be -300VDC. I don't understand that.
I don't get that either.
<i> "I've suffered for my music. Now it's your turn."</i>
Re: SSS again
I looked over the SVT schematic,I think it may be because the driver is direct coupled with no DC blocking cap. There would be a +DC voltage on the cathode so the -300 is to produce a - potential on the power tube grids.crbowman wrote:Yow! Seems like you could bias yourself right into utter silence.Bob-I wrote:M Fowler wrote:Some SSS seem to be using the 12BH7 ampeg section.
Yes, and I saw an odd post stating that the bias supply needs to be -300VDC. I don't understand that.
I don't get that either.
I'm not really up on why direct coupled would be better than having a cap.