Gulp 2
CAMPBELL SYSTEMS 
November 82 - April 83

| 81 | 
| 2 | 
| Mar 83 | 
Sources
(click here for more information on the data shown below)
ZX81 (Buffer Micro Shop)
| 5 | WEEK to c.82-11-18 | PoCW p31 82-12-02 | |
| 10 | WEEK to c.82-11-25 | PoCW p31 82-12-09 | |
| 7 | WEEK to c.82-12-02 | PoCW p35 82-12-16 | |
| 5 | WEEK to c.82-12-16 | PoCW p31 82-12-30 | |
| 5 | WEEK to c.82-12-23 | PoCW p31 83-01-06 | |
| 4 | WEEK to c.82-12-30 | PoCW p35 83-01-13 | |
| 7 | WEEK to c.83-01-06 | PoCW p31 83-01-20 | |
| 6 | WEEK to c.83-01-13 | PoCW p31 83-01-27 | |
| 5 | WEEK to c.83-01-20 | PoCW p31 83-02-03 | |
| 4 | WEEK to c.83-01-27 | PoCW p31 83-02-10 | |
| 4 | WEEK to c.83-02-03 | PoCW p31 83-02-17 | |
| 4 | WEEK to c.83-02-10 | PoCW p39 83-02-24 | |
| 6 | WEEK to c.83-02-17 | PoCW p47 83-03-03 | |
| 2 | WEEK to c.83-03-03 | PoCW p43 83-03-17 | |
| 9 | WEEK to c.83-03-10 | PoCW p39 83-03-24 | |
| 9 | WEEK to c.83-03-24 | PoCW p39 83-04-07 | |
| 9 | WEEK to c.83-03-31 | PoCW p43 83-04-14 | |
| 2 | WEEK to c.83-04-07 | PoCW p43 83-04-21 | |
| 7 | WEEK to c.83-04-14 | PoCW p43 83-04-28 | |
| 6 | WEEK to c.83-04-21 | PoCW p43 83-05-05 | |