Publication: Syntax
Pub Details: Syntax/Syntax ZX80 v1 n1 (Volume 1, Issue 1)
Date: November 1980
Pages: 1
Check Herbach & Rademan’s summer bulletin (Vol. 46 No. 5). Stock # 21K731 ($4.50) holds 8 C size cells and needs rewiring and a new output connector. H&R is in Philadelphia (215/426-1700).
If you use alkaline C cells, Eveready E-93 or equal, you can operate 2½ to 6 hours.