Examples of Voltage Clamp circuits using Operational Amplifiers

Moore, J. W. (1959). Electronic control of some active bioelectric membranes. Proc. IRE 47: 1869- 1880.
Moore, J. W. (1963). Operational Amplifiers. In: Physical Techniques in Biological Research 6: 77- 97. Academic Press.
Moore, J. W. & K. S. Cole. (1963). Voltage Clamp Techniques. In: Physical Techniques in Biological Research 6: 263-321.

A reproduction of figure 6 from this paper is available here.

Moore, J. W. & Gebhart. (1962). Stabilized wide-band potentiometric preamplifiers. Proc. IRE 50: 1928-1941.
Moore, J. W. (1971). Voltage Clamp Methods. In: Biophysics and Physiology of Excitable Membranes. Ed., W. J. Adelman, Van Nostrand Reinhold Co. pp. 143-167.
Moore, J. W. & E. M. Harris. (1972). Voltage Clamp Data Processing. In: Perspectives in Membrane Biophysics. Ed., D. Agin. Gordon & Breach Science Publ., Ltd. pp. 169-185.
Moore, J. W., M. L. Hines, & E. M. Harris (1984) Comp[ensation for resistance in series with excitable membranes. Biophy. J. 46:pp 507-514