Search found 378 matches

by professormudd
Fri Dec 02, 2022 11:43 pm
Forum: Technical Discussion
Topic: New SLO 100 clone
Replies: 47
Views: 7663

Re: New SLO 100 clone

Hope you get your slo build on the way Mark! I avoided using vactrols with my build... but I also designed my own PCB's with relays. Here is a gutshot of my SLO build SLO.jpg And photo's of the new boards with onboard LND FX Loop and clean channel SLO_rev3-pre.jpg SLO_rev3-psu.jpg Those look very n...
by professormudd
Mon Nov 14, 2022 3:36 pm
Forum: Garage Talk
Topic: How to go about selling a trainwreck clone
Replies: 3
Views: 1237

Re: How to go about selling a trainwreck clone

There is a "For Sale/Trade" section on this site. I have also had luck selling items on Reverb, Ebay, and Craigslist. Just watch out for scammers.
by professormudd
Thu Nov 10, 2022 12:00 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

Yes. I did. Everything is grounded properly where it needs to be and isolated where it needs to be.
by professormudd
Wed Nov 09, 2022 6:16 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

Your PT is vibrating mechanically--been there. Some PTs are born "unbalanced" and just want to hop around at 60Hz. You have two choices: tighten securely to the chassis (sometimes this makes it worse, because then the chassis serves as a sympathetic resonator and makes the noise louder), or isolate...
by professormudd
Wed Nov 09, 2022 3:55 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

Just out of curiosity, what transformers do you all prefer for this type of build, then? Thanks. When I was researching, I found a lot of people talking about the O'Netics being wonderful, albeit expensive. For me, aside from the mechanical hum, these transformers seem great electrically... Unfortu...
by professormudd
Tue Nov 08, 2022 9:56 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

I got a reply from Rob at C3: They do vibrate a bit and make some noise. It shouldn’t be excessive and these were normal on test here. Your video is spot on. That is the sound of an SLO at idle. These transformers are alternate vacuum and pressure impregnated with a heat cure resin that turns them i...
by professormudd
Tue Nov 08, 2022 4:44 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

This is a lot, not good, not acceptable, like a 10kV transformer for households on the street :P If all bolts are tight (also holding the laminations) the problem is inside of transformer probably, need to be varnished.. The bobbin is vibrating on the laminations probably, and also laminations seem...
by professormudd
Mon Nov 07, 2022 4:10 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

People who bought from Rob often came to sloclone asking for assistance, so I wouldn’t be so sure about a prompt and positive feedback. I hope for you to be wrong. Yeah, he isn't super fast on responding to my questions. It took quite a while to get these transformers shipped after I ordered them. ...
by professormudd
Sun Nov 06, 2022 11:14 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

Despite the mechanical hum from the power transformer, I went ahead and installed some tubes and set the bias so I could finally play through this thing... MAN! The overdrive on this sounds absolutely killer! Heavy, tight, and punchy. Playing this through a 4x12 full of vintage 30s provides for some...
by professormudd
Sun Nov 06, 2022 9:36 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

This is an O-netics transformer from C3. I went ahead and emailed Rob at C3 and am awaiting a response. Per the documentation he provided with the transformer he tested and did a burn in on it before sending it to me.
by professormudd
Sun Nov 06, 2022 2:57 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

Finally got around to powering this amplifier up, no tubes installed. Man, this power transformer is pretty loud. In stand-by immediately after powering it up it holds a pretty steady hum. I can feel the transformer vibrating. Other amps I am used to an initial bit of PT hum when I power it on, but ...
by professormudd
Sun Nov 06, 2022 1:25 am
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

Welp, I think I have complted the wiring portion of this build. As of this moment it is still Schrodinger's amp, though since I have yet to power it up. I will probably power it up in the morning. It is nowhere near as neat as other SLO builds I have seen, but for the time being I am pretty proud of...
by professormudd
Thu Oct 27, 2022 8:45 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

C3 amp chassis come oriented in the same fashion: http://c3amps.com/index.html As well, it looks like Soldano sold them oriented in the same fashion for at least a little while. Cursory searches on google show lots of clones and actual Soldanos oriented in this way, with end bells facing each other,...
by professormudd
Thu Oct 27, 2022 5:25 pm
Forum: Technical Discussion
Topic: Questions/Build Log: Soldano SLO 100 Clone
Replies: 44
Views: 8804

Re: Questions/Build Log: Soldano SLO 100 Clone

I went ahead and followed the advice of doing a headphone test... Well, I used a guitar speaker. Anyway, I did not find any problem with having the transformers in line. I also think it looks pretty nice. After I got the transformers mounted, I went ahead and wired the power tube filaments along wit...
by professormudd
Tue Oct 25, 2022 10:26 pm
Forum: For Sale/Trade
Topic: Amplified Nation JM/Wonderland Chassis and Board Sets - IN STOCK 12/22/22
Replies: 23
Views: 8305

Re: Amplified Nation JM/Wonderland Chassis and Board Sets

Hi, I beg your pardon but sometimes the most trivial things are neglected only to realize that they are important. Using an Amplified Nation chassis I need to use three Jack outputs for the three impedances: 4,8,16 Ohm instead of an impedance selector. In order not to burn the output transformer, t...