Jekyll & Hyde: Twin Soldano SLO100

I’m starting this new project, two new Soldano SLO100, with some differences (because building 2 identically items is not fun enough). I’ll call them Jekyll and Hyde: the first one will be a very Marshall style amplifier; the second, instead, will be a great high gain amplifier, with very strong basses. To achieve this target, I’ll change slightly Soldano specs. I’ll explain later better what kind of differences I’m thinking! πŸ˜‰

During all the phases of this project, I’ll update this page, in order to maintain a diary.
I also created 2 galleries, with pictures of these amplifiers:

First step: boards

March 11, 2008

I got these boards from Smashguitars, one of the most important user of the SLOclone forum. These boards are absolutely amazing: they are clear and professional. And the price is absolutely honest!

Second step: differences

March 13, 2008

This table is a summary of the differences that I will install on Jekyll & Hyde:

Jekyll Hyde
Capacitors Mallory Orange Drop
Output Tubes JJ E34L 6550 or KT88/66 JJ E34L
Special Mods Haynes Mod More Gain Mod

Third step: Hyde’s first components

March 17, 2008

These are the first resistors of the Hyde’s board. They are resistor that I got for my first SLO one year ago. The board is absolutely amazing and every pad is perfect even with a cheap solder.

Fourth step: Chassis

March 17, 2008

These are the chassis of Jekyll and Hyde. I bought them from Brownsound: Stef is a great person, very helpful.
Thanks for your amazing works on these SLO’s chassis! πŸ™‚

Fourth step: Trannies

March 30, 2008

I received the transformers few days ago. They were provided by inMADout, a great italian transformer maker. We work together, using specs that I got from internet. They are absolutely amazing and they will play surely great.In fact inMADout decided to produce those trannies regularly:

Check it out!!! πŸ˜‰

Fifth step: Resistors

April 4, 2008

I bought the missing resistors from RS components (Italian web site, but it is also available an international version). They arrived in 1 day. Great! They are slightly different from the ones I got last year (for my first slo), but produced by the same company. I also bought some UF5408 diodes and a set of wonderful 1k/6W resistors (I’ll show you in the future).

Sixth step: Filter Capacitors and glue πŸ˜‰

April 12, 2008

I bought these capacitors from a good italian site:
Their site is awful, but their service is amazing. I bought TREC capacitors for 220uF and 10uF places. I shoot them in some pictures.

To keep these capacitors safely in place, I used a glue gun to push under the capacitors hot glue. The result is excellent for functionality, but not so clean. πŸ˜› Anyway, now the capacitors are strong linked with the board.

Seventh step: Signal Capacitors

April 23, 2008

I received the signal capacitors: Mallory 150 for Jekyll and Orange Drop 716 for Hyde. They are absolutely high quality capacitors. I soldered them as clean as possible.

You could see further picture on the Jekyll and Hyde galleries.

Eighth step: Drilling the chassis

May 25, 2008

This is a very busy period. Anyway, I found the time to drill the chassis to host the transformers. I decided to put the choke inside the chassis (Soldano’s way!). This is the result of my work.

Nineth step: Assembling (Hyde)

May 31, 2008

After 5 days of hard work (the evening, after the “real” job), I’ve complete the first SLO: Hyde! Those are 2 pictures of the result: one inside, one outside. For further pictures, check the Hyde’s gallery.

Last step: Assembling (Hyde)

June 7, 2008

I’ve also completed my third SLO, after the Rocker-SLO and Hyde-SLO. This is the result. For further pictures, check the Jekyll’s gallery.

Those are 2 “family” picture! πŸ˜†

Per qualsiasi domanda, usa la mia pagina dedicata alle domande sullo SLO Clone.
For any question, use the page dedicated to the questions about the SLO Clone.


  1. ciao! complimenti per il lavoro, la pulizia nell’assemblaggio e i suoni dei sample! hai fatto davvero dei gran lavori!
    Mi piacerebbe possederne una..perΓ² sono un po’ distante (Como)
    eventualmente ne costruisci ancora?


  2. hola, quisiera saber si vendes las plaquetas o un kit para armar el ampli. en ese caso decime el precio, muchas gracias , Gustavo . (desde Argentina)

  3. Sorry, I don’t speak Spanish. But I’m italian and if I understood well, you are looking for the PCB (main board + power board) or a kit. Unfortunately, I can’t help you with the kit. For the boards, I bought them from a well-know user of this forum:
    Signin and look for “smashguitars”. He has all the boards you’re looking for.
    Have fun with your build.
    Davide (Italy & UK)

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