Well, that is only slightly embarrassing... at least I am not slower than the post office,Paypal shipment notification and the postman delivery came in the same day
Orders (and I use the expression loosely), that I received by 24.August, have all shipped. Only exception are a couple waiting for parts, or held b/c on vacation etc. My goals is to ship any paid this week, by Thursday or Friday.
For those who requested semiconductor sets, they are on the way. Held up a bit at my end b/c of some discussion about diodes, sorry.
Notes on Components
There are no SMDs or unique or hard-to-source components in this power supply. All components have substitutes.
All components are available from Mouser.com, however they can often be found elsewhere at a lower cost. None of the components are unique, and some should be chosen according to the intended power supply voltage, for example the rectifier diodes, the electrolytic capacitors, etc.
For transformer secondary voltage up to 33V AC, use an MBR10100, or any similar Schottky rectifier diode rated at 100V. The advatages of using Schottky diodes with higher than 100V breakdown voltage diminish rapidly, and they are harder to find.
For transformer voltage over 33VAC (>100V breakdown voltage), use MSR860G or any similar soft-recovery rectifier diode in TO-220AC package.
Using Mouser only, and with the higher voltage rectifier diodes, the total component cost will be closer to $25 than the original $20 (not including the electrolytic caps), but it can be cut down quite a bit. Prices vary - it pays to shop around.
Electrolytic capacitor voltage ratings should be chosen according to the supply voltages, and intended use.
J112 Jfets, and 3-mm LEDs ship with the circuit boards, because they are available in quantity 100+ at a fraction of the single-piece price.
Silicone insulators for the TO-220 components and heatsinks are usually available on Ebay with free shipping, at below normal distributor prices.
There is nothing unique about the heatsinks, footprints for the two I am using are below, shown for comparison.
There are no SMDs or unique or hard-to-source components in this power supply. All components have substitutes.
All components are available from Mouser.com, however they can often be found elsewhere at a lower cost. None of the components are unique, and some should be chosen according to the intended power supply voltage, for example the rectifier diodes, the electrolytic capacitors, etc.
For transformer secondary voltage up to 33V AC, use an MBR10100, or any similar Schottky rectifier diode rated at 100V. The advatages of using Schottky diodes with higher than 100V breakdown voltage diminish rapidly, and they are harder to find.
For transformer voltage over 33VAC (>100V breakdown voltage), use MSR860G or any similar soft-recovery rectifier diode in TO-220AC package.
Using Mouser only, and with the higher voltage rectifier diodes, the total component cost will be closer to $25 than the original $20 (not including the electrolytic caps), but it can be cut down quite a bit. Prices vary - it pays to shop around.
Electrolytic capacitor voltage ratings should be chosen according to the supply voltages, and intended use.
J112 Jfets, and 3-mm LEDs ship with the circuit boards, because they are available in quantity 100+ at a fraction of the single-piece price.
Silicone insulators for the TO-220 components and heatsinks are usually available on Ebay with free shipping, at below normal distributor prices.
There is nothing unique about the heatsinks, footprints for the two I am using are below, shown for comparison.
Attachments
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I am glad the PCB is well received. Credit for the clever circuit design goes to Miles/Mr Evil...
The price includes everything.
Boards, padded envelope, mailing cost using regular USPS rates for either domestic or international shipping, and Paypal fees. Two J112 jfets and two 3-mm LEDs are included with each board.
sorry if I'm confused about what's going on in Australia
Nothing mate, just a beer
. Ranchu was helpful enough to help me out with sourcing the parts from Mouser. Thanks mate.
