SSS 01 Layout

[dcribbs1412]

Thanks Aaron
Looks great
Really appreciate your time and work

Darin

[Aaron]

Okay, I've attached a revised layout. This is unverified and has not been tested so assume it has errors.

Thanks to everyone for comments,suggestions and pats on the back.
I've taken everything on board and hopefully this layout will clarify things.

This IS NOT a clone of SSS 001. This layout is based on the limited info that is available. All the values in BLACK are from what is visible in the high res pic. All the values in BLUE are suggestions and/or assumptions.

The 2nd Gen Tonestack was suggested as a starting point as it was mentioned that SSS 001 could have been made around '78/'79.

The layout of the whole chassis is based on the chassis photo of SSS 004 and the rear shot of SSS 003. Both also use the same trannies, AFAIK.

The power supply is based on the schem from SSS 002. Could be based on SSS 004, I don't know to be honest.

The tremolo is based on the Magnatone M-10.

Hopefully this will clear some things up and I apologise to anyone if I have given them the impression that this is a clone of SSS 001.

Thanks,
Aaron

EDIT:- REVISED LAYOUT

[Max]

The 2nd Gen Tonestack was suggested as a starting point as it was mentioned that SSS 001 could have been made around '78/'79.

Aaron, IMO the treble pot visible on the picture is a Clarostat 500K. And the James configuration at the bass pot might be rather obvious, too. But the values of the bass and middle pots aren't IMO obvious. AFAIR marcos once posted that he knows of one or two 2nd generation ODS amps with versions of the "pre-classic" tone stack with different pot values. Perhaps marcos might post if he knows of other tone stack values in combination with a Clarostat treble pot, a James configution and in a 2nd generation ODS amp different from the values shown in the 2nd generation layout in the files section?

Concerning the specs of this amp that aren’t obviously visible on the picture the building date – perhaps indeed around ’78 (see the date codes on the yellow Atoms on the picture) – might not be a very secure base, because IMO Alexander Dumble has obviously changed at least the wiring at some point in time after the mid eighties (the white Teflon coax cables – AFAIK never used by Alexander Dumble in the seventies and early eighties - are IMO rather obvious on the picture of SSS #001).

The power supply is based on the schem from SSS 002. Could be based on SSS 004, I don't know to be honest.

To avoid misunderstandings: Why aren’t you no longer sure if you based the power supply shown in this layout on the hand drawn schematic of SSS #002 or on the gut shot of SSS #004? IMO it should perhaps be clarified, what the power supply shown in this layout is based upon?

The tremolo is based on the Magnatone M-10

AFAIU all the information you find on this website http://www.vibroworld.com/magnatone/index.html
the Magnatone M-10 and M-10A have both been introduced after the patent for the Magnatone vibrato circuit was granted. And AFAIU all the information on this website the Magnatone M-10 and M-10A both have a vibrato circuit (pitch shifting) and not a tremolo circuit (volume modulation). So why do you write "The tremolo is based on the Magnatone M-10"?

Perhaps the tube compliment could be added to this layout? Or isn’t it possible to deduce the tube compliment for V1 – V8 (V9 - V12 AFAIK are 6L6GC) from the circuit specs visible on the picture of SSS #001?

Cheers,

Max

[martin manning]

Nice work Aaron, this has come a long way!

...And AFAIU all the information on this website the Magnatone M-10 and M-10A both have a vibrato circuit (pitch shifting) and not a tremolo circuit (volume modulation). So why do you write "The tremolo is based on the Magnatone M-10"?

It would be more correct to say "The tremolo oscillator and driver circuit is based on the Magnatone M-10A."

[Max]

It would be more correct to say "The tremolo oscillator and driver circuit is based on the Magnatone M-10A."

So the original circuit visible on the picture of SSS #001 and accordingly in this layout doesn't provide vibrato (pitch modulation) but tremolo (volume modulation)? Do I understand this right?

Cheers,

Max

[Aaron]

Here's a working circuit for the trem. I started with the Maggie and deleted stuff that wasn't needed. It now has the right number of caps and resistors, and all the resistor values from the photo/layout, except for the 47k vs 470 for the inverter loads. The neon bulb in the opto isolator would be connected from out 1 to ground or from out 1 to out 2. The range of speed isn't that great as it is, but maybe it could be tweaked a bit.

Hi Max,

Yes, tremolo only. AFAIK, this is what Martin worked out from the picture posted by Tony. Not 100% confirmed, just an educated guess from the number of the components on the board.

Regarding the power supply, I meant to say that in this layout I used the power supply from the hand drawn schem that is supposed to be SSS 002. Without seeing the other half of the chassis, there could be a power supply used like the one in the picture of SSS 004.

Thanks,

Aaron

[Max]

Yes, tremolo only. AFAIK, this is what Martin worked out from the picture posted by Tony. Not 100% confirmed, just an educated guess from the number of the components on the board.

Aaron, thanks for your explanations in regard to the tremolo and the power supply. I understand.

I did some research in regard to the tone stack and the result is that based on what's visible on the picture there's IMO a very high probabaility that the tone stack shown in your layout is the one of the real thing.

Cheers,

Max

[talbany]

Sorry..Refresh my memory does anyone here know what iron was used in 001?.. Was it Fender..We know it ran 4 6L6's
Max do you know this?

Thanks!!

Tony

[stevlech]

From boldaslove6789 in the SSS info thread:

SSS #1
"Silverface"
Owned & commissioned by Henry Kaiser
100w via 4x6L6's
Has single tube 12ax7 Opto Roach style tremolo
Fender Twin Reverb Pwr and OT
5 step filter positions on high and low filter, 1 bypass for each
Low plate 2nd Gen Tonestack
3 tube Reverb
Standard Dumble PI
Cathode Follower Driver tube.

[stevlech]

Looking at the gutshot, the cap from lugs 1-2 on the bass pot appears to be .0051 uf?

[talbany]

From boldaslove6789 in the SSS info thread:

SSS #1
"Silverface"
Owned & commissioned by Henry Kaiser
100w via 4x6L6's
Has single tube 12ax7 Opto Roach style tremolo
Fender Twin Reverb Pwr and OT
5 step filter positions on high and low filter, 1 bypass for each
Low plate 2nd Gen Tonestack
3 tube Reverb
Standard Dumble PI
Cathode Follower Driver tube.

Thanks!!

So both 001 and 002 ran the same (Twin) iron..
Both 001 and 002 had very similar voltage requirements (3 tube reverb/CF driver/ filters/filter recovery) The only addition (voltage wise) would be that of the Tremolo oscillator..
With this said I can't think of any reason why Dumble would change the operating points of 001 and 002 (one amp apart)... Using the 002 power supply in 001 would at least make for a good starting point, if not sound and operate just fine..IMO

Tony

[Max]

Looking at the gutshot, the cap from lugs 1-2 on the bass pot appears to be .0051 uf?

AFAIK a .005 cap in this position is known in at least one 2nd generation ODS amp with the Clarostat 500K treble pot and the "James configuration" at a 1M bass pot. So if "5100" should be known to be the code for ".0051 uF", this might be one more "confirmed value" and in accord with a 2nd generation tone stack.

With this said I can't think of any reason why Dumble would change the operating points of 001 and 002 (one amp apart)...

"One serial # apart" might be one or even some years later in regard to a SSS. And AFAIK Alexander Dumble didn't build amps in the sequence of the serial numbers anyway. And AFAIR right now and without checking again SSS #002 has already the "classic" tone stack - so why no other operating points and other differences, too? Chassis of #002 is a bit different, too - BTW. And IMO one should perhaps keep in mind the "open to flexibility" statement of Alexander Dumble, too. And the fact that he usually updated the amps in Jackson Brownes studio whenever he felt the need to do so. So IMO "one amp apart" isn't a valid argument for "will be similar".

Tube compliment: AFAIR right now 12AX7 and 12AT7. But I'm not 100% sure right now. I might confuse it with the tube compliment of an ODRS from the same period.

Cheers,

Max

[dr. who]

I saw dumble trem In another post. Is SSS trem the same?
https://tubeamparchive.com/viewtopic.php?t=17929

[vibratoking]

Anyone know the values of the cap can?

Aaron,

It looks like quite a few changes? Do you have a list of the changes you made?

The mid accent cap is gone?

I don't see a connection from V1 plate to the 100k slope resistor.

The new watermarks make the values harder to read. Would it be possible to put the watermark over an area with no values?

[Aaron]

Hi Larry,

I dont know the cap can values, but in the 002 schem 20uf are drawn in.

I originally thought it could have been a "mid accent" as in the SSS 002 also, but after the new photo you can see a capacitor on the tail of the P.I.

I'll fix the line to the slope resistor. I went through a couple of days ago and made all the lines thicker and changed the values to bold to make it a bit easier to read.

That's not a watermark, it's goop for the bootleggers

Thanks,
Aaron