Abstract: A composite vending control circuit is disclosed that is readily disposable in either a single-priced or multi-priced configuration. The composite vending circuit includes the circuit elements and interconnecting conductors required for operation in either a single- or multi-priced mode of operation. Further, a switching arrangement in the form of interconnectable plugs permit reconnection of the circuit elements whereby the single-priced circuit configuration may be readily adapted to operate in a multi-priced configuration. Thus, conversion may be readily achieved without extensive rewiring or the addition of further circuit elements.