Amplifier Refraction Type A 15
Jump to navigation
Jump to search
| Item | Amplifier Refraction Type A 15 |
|---|---|
| Item code | |
| Description | |
| Manufacturer | |
| Circa | |
| Model | |
| Donor | Sun Oil |
| Location | Houston Geoscience Center |
| Serial number | |
| Taxonomy | GSH92A |
Three vacuum tubes for power and amplification. Compartment at left was refraction geophone storage. Back of amplifier contains three large capacitors, one transformer, and wires to battery. Output to Oscillograph unknown
