| | Manufacturer | Part No | Description | Available | Price |
| Buy | Gould | 2108-808XXX-0X | 2800S Gould 2800S Rcorders Thermal Writing Models Operators and Service Manual (201914) | 1 | $65.00 |
| Buy | Gould | M13-4585-15 | TA11 and Cobra16 Gould General Purpose Signal Coditioner for TA11 and Cobra16 Recording Systems Instruction Manual (201575) | 1 | $50.00 |
| Buy | Gould | MU13-6615-10A | no.13-6615-10A, no.11-5407-70, and no.11-5407-71 Gould DC Signal Conditioner Model no.13-6615-10A and High Voltage/Shunt Probe Model no.11-5407-70 and no.11-5407-71 User's Manuals (201912) | 1 | $25.00 |
| Buy | Gould | MU13-6615-10A | no.13-6615-10A, no.11-5407-70, and no.11-5407-71 Gould DC Signal Conditioner Model no.13-6615-10A and High Voltage/Shunt Probe Model no.11-5407-70 and no.11-5407-71 User's Manuals (201913) | 1 | $25.00 |