Tag: inline protector

A compact inline MOSFET protector that disconnects a Commodore 64 supply when the monitored voltage exceeds the safe range.

Shareware Plus and Ami64 each listed the inline OVP64 at GBP 39 in 2026. Protovision listed six units at EUR 48 with a one-to-two-week shipping estimate on 2026-07-30. All three describe the same compact MOSFET design and a 5.40 V safety threshold. The public listings do not specify a response-time measurement, reset procedure, 9 VAC behavior, current rating, fuse, schematic, or designer. An older boxed OVP64 was sold by Shareware Plus, but its electrical relationship to the current inline product is not established.

A compact semiconductor protector for the 5 VDC and 9 VAC rails of compatible Commodore power supplies.

CMD Marketplace listed four units at USD 40 on 2026-07-30. The page claims a 20 microsecond semiconductor response versus 200 milliseconds for a relay design. After a 5 V trip, its 1.25 A SMD fuse must be replaced with a soldering iron; one spare is supposed to be included. The page simultaneously displayed a USD 9 United States rate and a notice that the item does not ship to the United States, so confirm destination availability before ordering.