Hello. I'm a DIY noob with decent soldering skills, a big pile of stuff, and some enthusiasm. I've successfully managed to put together an SCA N72 without incident, and I've wired up my studios, racks etc for years, and I really want to expand my skills and knowledge.
I want to build a preamp or two, based around a pile of Triad A67J transformers I have lying around. I found this design by Rod Elliot which uses a single NE5534, which I have a bunch of, and a Jensen JT16A, which I definitely do not have. The Jensen is a 1:2 transformer, as is the Triad A67J. I'm sure you can see where I'm heading with this.
Any chance I can substitute an A67J in this design and have it work? While I'd like to end up with a usable preamp, I would be fine if it ended up on the "colored" side of things. I don't expect it to be my go-to. Funky is fine.
If this design isn't right, would there be another very simple circuit I could make work with an A67J? The only preamp I know of that used them is the Spectra Sonics 101 and 110, which looked harder than I'm ready to take on, and there aren't a wealth of schematics, as SS is still in biz. If there's some other simple design that would work, I'm happy to change gears.
I have plenty of good quality switches, pots, etc.
A few other questions..
Can I do this on a breadboard, or something similar? Designing PCB's is way out of my league.
I'm thinking of using a JLM "Go Between" and one of their power supplies, unless I can find something cheaper. Sound right?
I don't see any outputs in the schematic. Anyone know where they are?
Many thanks!
Stephen
I want to build a preamp or two, based around a pile of Triad A67J transformers I have lying around. I found this design by Rod Elliot which uses a single NE5534, which I have a bunch of, and a Jensen JT16A, which I definitely do not have. The Jensen is a 1:2 transformer, as is the Triad A67J. I'm sure you can see where I'm heading with this.
Any chance I can substitute an A67J in this design and have it work? While I'd like to end up with a usable preamp, I would be fine if it ended up on the "colored" side of things. I don't expect it to be my go-to. Funky is fine.
If this design isn't right, would there be another very simple circuit I could make work with an A67J? The only preamp I know of that used them is the Spectra Sonics 101 and 110, which looked harder than I'm ready to take on, and there aren't a wealth of schematics, as SS is still in biz. If there's some other simple design that would work, I'm happy to change gears.
I have plenty of good quality switches, pots, etc.
A few other questions..
Can I do this on a breadboard, or something similar? Designing PCB's is way out of my league.
I'm thinking of using a JLM "Go Between" and one of their power supplies, unless I can find something cheaper. Sound right?
I don't see any outputs in the schematic. Anyone know where they are?
Many thanks!
Stephen