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Script trolley/score trolley, with a sheet of 703 on it?

Or knobs spaced using QRD?

There are so many preamps that it's easy to second guess, especially if you've got money burning a hole in your pocket. There are also decades worth of music that was made with the console preamps, which are frequently not "cadillac" circuits. It doesn't take much to make a moderately functional pre...

The schematic is in the LevelLoc manual.

https://pubs.shure.com/guide/M62V/en-US

So, first off, sing like that. Rise into those vowels, then hang on them. Don't sing too loud. Add some vintagey vibrato. Nobody sings like that anymore. Second, try lopping off the highs and lows. Nothing below 120 Hz, nothing above 7 kHz. Maybe with a dynamic mic or a ribbon. It's noisy, but not t...

Even when they're working, you'll ask yourself if they're broken. I think it wants a 9 Volts DC supply. The most common mod for them was to add a big electrolytic capacitor (1000 uF, 25V) across the power rails at the input, to soak up some 60 Hz hum. It also operates at mic level - you patch it in ...

CR-68, Rock1.

So an Ace Tone Mk XVII...

First guess was something from Korg...mini or micro Pops. But checking videos of each, doesn't seem right. Ace Tone? The bass drum seems more like one of them. Not sure if the little squeaky sounds are part of the drums (analog shaker or guiro?) Could even be the onboard rhythm section from an organ...

To those if you debating the intellectual property aspects of this: Circuits are indeed patentable. There are an awful lot of patented circuits at USPTO. Bell labs/AT&T patented negative feedback before WWII, and a bunch of early guitar amplifiers had to license those patents (old Fender schematics ...

Rodgre: first, go read the patent - it explains the variable input impedance thing, and some other clever Cloudlifter tricks. It looks like the PCB in my CL1 has pads & jumpers that would enable some of those features. The Cloudlifter with a transformer is the Zi, which uses a Cinemag DI transformer...

Does this fix help other devices experiencing the same symptoms?

I've got an old Carver power amp with a humming transformer that I've been living with for far too long, and if a $5 part fixes it, that would be great.

There's no need to trace the schematic - the basics are in the patent . You might want to verify them against the actual device, if you're really cloning it. You can also draw your own schematic and do whatever you want with it. You drew it, it's your creation to do what you want with. Schematics ar...

For the sort of sounds you mention, stuff in the "stage piano" realm is probably a good fit. Do you need waterfall keys? The Korg SV-1 and its kin come to mind. Easy to use, sound pretty convincing, looks a bit like a Polymoog. Not sure how the Roland equivalents stack up. The Yamaha Reface things a...

Now you've come full circle. Fix the old Soundcraft supply to power the new desk. (A side note on lineage - there was a point where Harman owned Soundcraft, Soundtracs and A&H. All of their desks were pretty similar before that, and the got more similar during. Similar mic pres, EQs, summing, line d...

Power SURPRISE!

Not sure what the question is, but the answer is a Scully 1/2" 3-track in a 16' Airstream.