Closed MultiFix-AGA: a flicker-fixer and scandoubler for "Big-Box" Amigas

[genny_flick]

For sale a Multifix-AGA, a flicker-fixer and scandoubler for Amiga 2000 3000 4000. Project is open-source by Matze (Matthias Heinrich). PCB is the last hardware revision (v0.3a). More informations here:

Matthias Heinrichs / Multifix-AGA · GitLab

This is a FlikerFixer for OCS/ECS and AGA-Machines

gitlab.com

Item is new, components are all NEW or NOS from Mouser and Utsource.
Features of MultiFix-AGA:

• supports AGA and ECS machines Amiga 2000/3000/4000;
• the resulting picture is sharp and crystal clear;
• supported resolutions: LoRes, LoRes Interlaced, HiRes, HiRes Interlaced;
• tested on PAL machines. NTSC mode in PAL machines works also well;
• internal pinheader is compatible with the RTG Card 'GBAPII++';
• no need for an adjustable capacitor as in the Commodore A2320 de-interlacer board, this was solved with an ICS570 clock multiplier;
• sync on green capability;
• positive and negative blank select;
• external USB connector, but only to power external devices such as HDMI converters. There is no USB functionality!
• headphone connector to directly bypass the audio signals from the Amiga video slot.

Keep attention to this:

- board doesn't provide USB functionality and the USB port is only to power external devices, unless you connect a USB host (such as Deneb or RapidRoad) to the internal pinheader;
- board was not tested in NTSC machines that may need a different timing;
- board is not compatible with A2000 v4.x boards;
- board is not compatible with OCS Denise;
- in A2000 models, jumper J300 (near odd CIA) must be set to position 1-2 (TICK must be generated by PSU, not by Agnus).

Request is EUR 135, payment by PayPal (friend and family or add fees).
Shipping cost is EUR 12 (UPS courier) for most european countries, in doubt just ask!

View attachment VID-20250221-WA0004.mp4

 

[Hannibal]

Nice! Do you have brackets?

 

[a.mi.goun]

Declaring interest.

 

[Telsar]

Declaring interest.

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Declaring interest

 

[Szmn]

Declaring interest.

 

[genny_flick]

Sold to @a.mi.goun

 

[genny_flick]

Item has been shipped.

 

[a.mi.goun]

Received and tested. Card worked only on normal screenmodes, but Interlaced modes fail on the card.
Agreed with seller to return the card. Sent back today.

 

[genny_flick]

the card was thoroughly tested before shipping for several hours over several days and never gave any problems in interlaced mode. I think it is incompatibility with the buyer's monitor but I decided to take it back.

 

[a.mi.goun]

I tested with several monitors. Most of these are multisync and they can display Interlace even without using the flickerfixer. So it certainly is not a monitor issue.
Developer of the card suggested it looks like bad sync on the red-channel ram.
This is most logical issue which explains why card works like scandoubler but fails as flickerfixer.

 

[genny_flick]

Here we are never done, I prefer not to reply. I do not start selling cards if I am not sure that they work. I said immediately to send it back but the buyer started to move the RAM. I hope that the card is not irrecoverable. You can not expect a return if you start to tamper, nevertheless I accepted. Please stop!

 

[a.mi.goun]

Sorry but not a single picture shows working Interlace mode at your sale post. Neither the video.
I do not blame you forgot to test the Ineterlaced modes prior selling, but I recommend you do next time.