1. A bare printed circuit board. This is a high quality double-sided board with plated through holes, soldermask, and silkscreen.
2. A programmed 27128 EPROM containing the operating program.
3. Two UA78S40 switching regulator chips.
4. Two inductor coils.
5. Two current-sensing resistors.
6. A MAX522 dual digital-to-analog converter chip.
7. A programmed PAL for address decoding.
8. A TL431 voltage reference.
9. A disk containing:
   • LP120 user's manual covering assembly, usage, troubleshooting, schematics, and more.
   • Power supply schematics, based on 20V C.T. transformer.
   • Development guide covering programming-module interface and device driver software.
   • The source code for an example device driver.
   • A self-test/calibration device driver.
   • Freeware DOS cross-assembler for generating device drivers.
   • Device drivers for 2716 thru 27256 EPROMs.
   • EPROM device driver manual with schematics for the EPROM personality-modules.

In addition to the partial kit shown above, the following parts are required to finish the LP120. These parts may be purchased from various suppliers.

  Quan.   Part
----------------------
Semiconductors
    1    1N5818
    2    1N5819
    2    TIP30
    1    2N2907A
    1    2N3904
    1    MAX232
    1    6264
    1    62256
    1    6803
    2    6821
    1    74HC14
    1    74HCT393
    1    74HCT573

Capacitors
    2    20p
    1    680p
    1    820p
    6    0.1u
    4    1u, 16V
    1    1u, 50V
    1    10u, 16V
    1    100u, 50V
    1    100u, 35V

Resistors
   18    0.25W, 5%
    3    0.5W, 5%
    2    1K 3/4" trimmer
    3    8-pin, 4.7k SIP

Sockets
    1     8 pin
    2    14 pin
    3    16 pin
    2    20 pin
    3    28 pin
    3    40 pin

Misc.
    1    Power terminal connector
    1    DB-9S connector
    1    22/44 edge connector
    1    3.6864MHz crystal