One pair of Super Regulator boards. The circuit is as published on Jan Didden's website. I opted to place both positive and negative regulators on the same board with a common ground, connected at the input. The sense inputs are hard-wired and not brought out to external pads. Voltage is set for 17.7V but, of course, can be changed easily with a single resistor swap.
Dimensions are 2 3/4" x 3".
These are prototypes I built in November using all new parts. They are in perfect shape and are very lightly used. The only issue is a layout error on the LM329 references; to fix, I had to cut unused pin 1 off the TO-92 devices and mount on the remaining two leads, which should not impact function or reliability.
I've built more of these (with corrected layout) and they've worked first time and show no signs of instability.
I am also offering two unpopulated PC boards (also corrected) for a complete dual-mono power supply.
My actual parts cost for the individual regulators is $50, which is my asking price. I'm asking $10 each for the bare boards. Buyer pays shipping.
Please note: I guarantee the regulators will be in working condition on shipment. For the bare boards, I will provide technical support within reason; but the buyer should have experience with high-gain circuits and SMD soldering. Please do not bother Mr. Didden with issues related to my layout. Out of respect for the original designers, I will not be releasing the design files.
Dimensions are 2 3/4" x 3".
These are prototypes I built in November using all new parts. They are in perfect shape and are very lightly used. The only issue is a layout error on the LM329 references; to fix, I had to cut unused pin 1 off the TO-92 devices and mount on the remaining two leads, which should not impact function or reliability.
I've built more of these (with corrected layout) and they've worked first time and show no signs of instability.
I am also offering two unpopulated PC boards (also corrected) for a complete dual-mono power supply.
My actual parts cost for the individual regulators is $50, which is my asking price. I'm asking $10 each for the bare boards. Buyer pays shipping.
Please note: I guarantee the regulators will be in working condition on shipment. For the bare boards, I will provide technical support within reason; but the buyer should have experience with high-gain circuits and SMD soldering. Please do not bother Mr. Didden with issues related to my layout. Out of respect for the original designers, I will not be releasing the design files.
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