Some years ago i came into a lot of components, and included in the collection where quite a lot of SG1468T dual polarity tracking regulators.
These are very nice looking metal can gold plated IC's from 1978. I thought it would be fun to build a DAC or preamp supply with them. They are not the best but could make an intereresting +-15V PSU for preamplifiers. Specs say that this IC is capable of lower than 100uV or .1mV RMS noise over 100-10Khz. Ripple rejection at 120Hz is specified as 75dB.
So i thought why not do a project with these IC's. So i will be designing a board for this IC+ External pass transistor and offer a board+IC for the price of a pack of cigarettes.
Design will be centered around +-15V output at currents up to 500mA continuous from a 15-0-15 30VA transformer. This will by no means be a super low noise supply, but it is something different from the many iterations of LM317/337 and 7815/7915 supplies that are commonplace.
Let me know what you think!
These are very nice looking metal can gold plated IC's from 1978. I thought it would be fun to build a DAC or preamp supply with them. They are not the best but could make an intereresting +-15V PSU for preamplifiers. Specs say that this IC is capable of lower than 100uV or .1mV RMS noise over 100-10Khz. Ripple rejection at 120Hz is specified as 75dB.
So i thought why not do a project with these IC's. So i will be designing a board for this IC+ External pass transistor and offer a board+IC for the price of a pack of cigarettes.
Design will be centered around +-15V output at currents up to 500mA continuous from a 15-0-15 30VA transformer. This will by no means be a super low noise supply, but it is something different from the many iterations of LM317/337 and 7815/7915 supplies that are commonplace.
Let me know what you think!
