SSS - Nukular Warhead - Chassis are Finished

[txbluesboy]

If you don't have TUT3, look at the 180 watt Fender Super twin on Schematic Heaven. It has the same Phase inverter sans individual bias adjustments for each tube. Terry

[briane]

I used the PI that KOC used in the simplified version of the SVT, as shown in TUT3

yeah thats what I used too. Works great, given the disclaimer below:

Funny I made a little misread, ended up attaching the 1k/25uf to cathodes of PICF (aka dumbeator style) rather than to power tubes in....Which has worked great. Not even sure its worth taking the time to listen to 'the right way' since it works so well.

[txbluesboy]

I wish I could figure out a simpler version of the dirct coupled SVT phase inverter.

[txbluesboy]

Sorry, double post.

[txbluesboy]

Sorry again

[M Fowler]

txbluesboy,

First thing, your amp is looking very good.

Second thing I don't know crap about Dumbles but I bought the SSS chassis anyway to learn.

Third did you make your own boards?

Fourth I do not have a clue what I am going to base a SSS off of as everyone I ask said they all were custom built to customers needs and all different.

Any suggestions as to where I should start. I have read the posts and can go back and read more but I do need some direction on this build otherwise I will turn it into some type of custom amp with the faceplate of a SSS?

Mark

[tictac]

I used the KOC SVT circuit too; hey Terry is the 1M pot your filters are connected to the preamp volume control?

I'm still messing with the filter thing, it'd be nice to know what the real thing is....

[txbluesboy]

Yes I did make my own boards. As far as what SSS circuit to base it on, nobody has really shown us a complete circuit. We only have little snippets about little pieces of it. I think a lot of what has been put out as fact is actually just opinion. The only thing I think we really know is that it is loud, very clean, has reverb, some sort of Cathode follower phase inverter, and has the extra filter circuit. I hadn't really planned on putting in the overdrive section until I got my chassis and saw it had a switch marked Clean/OD. In this respect I'm just building an amp to work with this chassis/faceplate. Im trying to build it in the spirit of an SSS, rather than trying to build a clone. You notice my phase inverter board is built like the few pictures we've seen, with the tube socket accessible through a hole in the board. This worked out very neatly on the PI circuit, but I couldn't come up with a layout for the preamp or reverb that didn't have longer leads and more wires crossing each other than a standard layout. This is why these boards don't look like SSS style.
Tictac, The 1 meg pot you see in my drawing is not the volume pot. If you look at my Low filter, it is just a .022 cap with a parallel variable resistance ( high pass filter ). What I mean here is that you could either use the rotary switch with different resistance settings between 300k and 800k, or just use the cap on a pot and have infinite resistance settings up to 1 meg. Your guess is as good as mine as to where to put it!
Terry

[RJ Guitars]

Here is a look at the latest piece of the SSS puzzle... another chassis just like the others but with a pretty nice cabinet and the boards installed. This is on it's way to a guy in Canada, one of the original prompters for this project. Thank you sir!

This was built using some authentic info on the inside layout from a real SSS. It is punched out for Fender Twin iron which I'm sure makes a big contribution to a platform for a loud clean amp with Reverb.

I'll be working on some circuit board designs over the next few weeks again based on authentic info from an inside look at an SSS amp. With the info I have and the continued help from the forum here, we should be able to put something together that will bring us into proximity of the real deal...

thanks for all the help so far, if anyone would like to make further contributions in helping to sort this out please send me a note.

thanks

rj

[Structo]

Interesting having the boards over the sockets like that.

I take it the originals are like that?

So lead dress can be kept short and the associated components can be right at the socket.

[RJ Guitars]

Interesting having the boards over the sockets like that.

I take it the originals are like that?

So lead dress can be kept short and the associated components can be right at the socket.

Yes that was how it was done... definitely would keep the leads short plus there is a whole lot going on and you don't get the luxury of extra space. The original also has an FET board up against the sidewall so there is actually a 5th board as well.

rj

[txbluesboy]

From my experience, this probably works better with PCB construction.
Terry

[M Fowler]

rj

Some AG guys and I are looking for Asteroid type boards are the ones you show the same as the Asteroid?

Any hoo I need to get ahold of you for a TW express perfboard set and some of the SSS board material especially if it is the same as the asteroid.

Mark

[RJ Guitars]

rj

Some AG guys and I are looking for Asteroid type boards are the ones you show the same as the Asteroid?

Any hoo I need to get ahold of you for a TW express perfboard set and some of the SSS board material especially if it is the same as the asteroid.

Mark

Mark,

I don't know much about Asteroid boards... other than at a quick glance, they are obviously different than the wrecks.

I have 1/16" G-10 that I'm using for the SSS amps. I don't know if that is the stuff to make Komet boards of or not, but if I made them I'd use the G-10 stock I've got.

I am hopeful that I'll get to do a little design work here in the next few weeks and maybe come up with something that will help us create the roots for an SSS schematic.

The Express board set is easy enough, I've got a few of those pre-made.

rj

[txbluesboy]

I got my version up and running yesterday. At first the overdrive channel wouldn't work but it turned out to be a shorted shielded cable that I had made up to go to the level pot. I still have junky start up tubes in it but it sounds pretty awesome so far. I used the one tube reverb circuit that has been posted on the Dumble site, It works and sounds good but its fairly subtle even with the send and return pots all the way up. Is there something I can tweek to make it more effective. You probably notice the 6V6's Im using so far are as mismatched as they can be, but the amp has an incredible clean sound already. Im sure the individual bias adjustment pots help a lot in this case[im[IMG:800:600]http://i143.photobucket.com/albums/r160 ... ger010.jpg[/img]g][/img][im[IMG:800:600]http://i143.photobucket.com/albums/r160 ... ger013.jpg[/img]g][/img]