ECS A500+ and A600 and AGA Amigas can output VGA frequencies. A screen mode must be loaded, probably at startup. Usable for workbench, but games that bypass OS will be 15KHz. The 15 KHz frequencies that might be accidentally sent to VGA monitor are perhaps bad for CRT VGA monitors, maybe.
Remaining few adapters only 10€ + 6€ shipping to Europe
Use for A4000TX (*) or PC that can output TV frequencies.
(*) wire fused power to vga socket
I think the 24 pin header on the A4000TX MB has all the signals, but VGA doesn't have a composite sync.
1. RGB levels are wired straight through...
I'll send dm. FS thread made
I think the 24 pin header on the MB has all the signals, but VGA doesn't have a composite sync.
1. RGB levels are wired straight through.
2. Scart composite sync is combined from VGA horisontal and vertical sync using IC.
3. For SCART TV:s, "choose 4:3" signal is...
I have some VGA to SCART connection adapters. These have no scan rate conversion.
To use with A4000TX, I wired a fused 5 volt to the otherwise unconnected "+5V" pin on VGA 15 pin socket. There are two 1.85A resettable fuses on the A4000TX board for external connectors such as keyboard.
You would...
Unexpectly a combined aliexpress shipment was delivered after two months halt, instead of being returned.
I have parts 74LS08, 09, 133, 163 & 174, 74HC14, 74HCT00 & 74. AT89C2051, RTC62421, crystals 8 & 11.0592 MHz for Amiga and C64 pcb projects.
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