LP120 Partial Kit

The partial kit consists of the following items:
  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 - Other required parts

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

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