Tag: relay

3 matching upgrades

Showing 3 products.

StatusProductWhat it doesCompatibilityLinks
DiscontinuedChecked Jul 30, 2026saV64 Overvoltage Protectorby Heather (SkydivinGirl) and e5frog

A historical relay protector with alternate DC and AC inputs for several Commodore power configurations.

The surviving Round 4 sale thread is explicitly titled SOLD and dates to 2017. It offered complete kits at USD 45 and assembled units at USD 85. C64 OS repeated those prices in 2022, but that does not establish later production. The former hookturn.com user-guide URL now resolves to a parked domain. Use the preserved feature and forum specifications for identification, and search the used market rather than contacting the old seller as though stock were current.

Sources
  • Commodore 64 Exact model
  • Commodore VIC-20 Exact model
  • Commodore Plus/4 Exact model
AvailableChecked Jul 24, 2026SMC Beleth's Drumby Infinity Products

Adds relay-generated hard-drive activity sounds to otherwise silent BlueSCSI, CompactFlash, and solid-state storage.

The current storefront listed the assembled simulator without an out-of-stock marker on 2026-07-24. It is an internal modification rather than a plug-and-play peripheral.

Sources
  • Macintosh internal 50-pin SCSI Bus/interface
Build itChecked Jul 30, 2026tebl C64 Power Saverby Tor-Eirik Bakke Lunde (tebl), based on Ray Carlsen's circuit

A source-available relay board that cuts the C64's 5 V supply above about 5.6 V.

The public repository was last updated in January 2020 and PCBWay retains a bare-board order route for Revision E. No explicit hardware license is published, so this is source-available rather than licensed open hardware. Revisions C and D require a documented bridge between DIN pins 4 and 5 for supplies that place 5 V on the alternate pin; Revision E incorporates that fix. A separate builder found severe thermal drift in an older Console5-derived prototype and called that build unfit for protection. Test any completed board's trip point and stability under realistic load and temperature before relying on it.

Sources
  • Commodore 64 Exact model