The Amp Garage

I remembered that a long time ago I also collected Champ, and I still have photos of the build, step by step. I think it might be useful to someone...

This section of the board is more like a mixer.
It seems there is a tremolo in this amplifier?

I hope it helps

By the way, there was one in the style of a Dumble but I didn't have any photos left in the finished form. Only the creation process itself... img-2057-bd0e80531c.jpg img-2062-3dc83eeb61.jpg img-2141-640bd1da9e.jpg img-2142-8c9a3ec61d.jpg img-2143-e2d59f120e.jpg I hope he will not be offended with m...

A few years ago, a friend of mine made several preamps in a similar style. I'll just show you the photos, for inspiration. They are amazing! img-1621-e6af37110f.jpg img-1620-ca28830e77.jpg img-1451-d0c3c03182.jpg img-1676-4781042d64.jpg img-1677-fe81d01784.jpg img-1675-b977bb4a32.jpg img-1870-8544fd...

PI cathode resistor (R38) should be 820R, not 920R.....no? In this photo, it looks very light, brighter than the typical grey, but maybe it really is gray. Moreover, 920 is a non-standard value. Thank you for your comment. 2021-08-29_16-38-21.jpg Regarding the capacitors, these are just regional fe...

In cell phone repair shops there are special liquid adhesives for masking cracks. There are also similar sealant for repairing cars windows. https://youtu.be/WyHwfYMv2_M I myself have seen some of these methods in action, and the result is really impressive. But I think that in reality, not everythi...

Hi John,
Thank you again for sharing your version of the scheme. I put your corrections to a clearer drawing

Photos, drawing and layouts, this is the merit of my friend. Unfortunately, I myself did not have enough time to get acquainted with this in detail. Now the amplifier has already returned to the owner. But maybe after some time it will fall into the hands of my friend again, and it will be possible ...

professormudd wrote: ↑Sat Aug 21, 2021 4:23 pm Initial question:

• Is shielded cable advised for the input jacks? Anywhere else?

I built this amplifier once, and I did not use a shielded cable anywhere. There have never been any problems with noise.

scheme and layout

more photos

Well, I hope no one will kick me for this )))

Hi guys,
now this amp is on the table in my friend's workshop. After some research, there is already a schematic and board layout. Although there is nothing unknown inside.
I am ready to publish all this, but I am not sure about the copyright. What will the administrators say about this?

In my experience, these small amps do a pretty good job with a clean, but the OD doesn't sound convincing