| Manufacturer: | Hickok |
| Model: | 6000, 6000A, 6005 |
| Description: | Tube Tester |
| Type: | Obsolete Chart |
| Price: | $20 |
| Manufacturer: | Hickok |
| Model: | 6000, 6000A, 6005 |
| Description: | Tube Tester |
| Type: | Chart 1968 |
| Price: | $15 |
| Manufacturer: | Hickok |
| Model: | 6000, 6000A, 6005 |
| Description: | Tube Tester |
| Type: | Test Data Chart |
| Price: | $18 |