| Reference number | NLB/73/256 |
| Alternative reference number | NLB/73 p128 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [William Edward] Curtis, Armstrong College, Newcastle-upon-Tyne |
| Date | 31 March 1931 |
| Description | Informs that it is only possible to obtain 200 volts from the D.C. Suggests Prof. [William Edward] Curtis brings in a transformer to obtain the 480 volts needed, as he only needs a small amount. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |