JLM AC/DC Ver. 4 kit is a Linear based universal power supply that generates 3 voltage rails from a single or dual 15 to 30vac power transformer.
It has one pump charge rail for 48vdc, 1 +/- Rails that can be set from +/-2v to 37v by a 25turn trim pot.
All regulators are on one edge for easy heatsink or case mounting.
Can supply maximum 1amp per +/-V rail and 300mA +48vdc. 1amp for +/'-V rails can be boosted to 1.5amp with 4 extra 1N4007 diodes.
New ver 4 PCB as extra screw terminals making wiring to and from the PCB easier. Also all 4 mounting bolts can be used to connect to chassis ground as well a a case screw terminal.
Also has back overlay showing the 3 most common AC/DC mods as well as terminal labels.
The AC/DC Ver. 1 & 2 PCB is 3.3"wide (83mm) x 1.7"deep (43mm) x 1.1" (28mm) high from top of tallest cap to lowest solder joint under the PCB.
AC/DC KIT Build Thread here
AC/DC transformer and heatsink calculator here
You can save money on this item when you purchase several at a time. The table below shows the minimum quantities required to benefit from this offer, and how much they'll cost.
| Quantity | Price per unit |
|---|
| 1 | £24.70 |
| 5+ | £23.94 |
| 10+ | £22.68 |
| 25+ | £21.42 |
| 50+ | £20.16 |
| 100+ | £18.90 |
