Comments for nIGHTFALL Blog / RetroComputerMania.com

Comment on PicoA10400 Flashcart for Atari 2600 & 7800 by Stephen

Stephen — Tue, 06 Jan 2026 16:35:50 +0000

I can’t see a complete BOM list anywhere just some references in the readme. am I missing something?

Comment on PicoA10400 Flashcart for Atari 2600 & 7800 by Stephen

Stephen — Mon, 05 Jan 2026 19:25:02 +0000

Thanks for getting back to me so quickly. I looked at the readme and its not clear. Still a newbie at this

The LED source voltage is 3.3v from PIN 36 of the PICO Purple.

LED Resistor:

RED/YELLOW LED: 100ohm GREEN LED: 75ohm BLU/WHITE: No Resistor (solder a bridge instead of resistor)

Pico 10400 Main Project: https://github.com/aotta/PicoA10400 Pico 10400 Alternative Version: https://www.nightfallcrew.com/17/01/2025/picoa10400-flashcart-for-atari-2600-7800/

So I have managed to figure out the two switches (one listed on the read me one by searching on the web for the right kind. I found the diode (off the pdf 1N4148) and if I read the above if I want the led to be red I use a 100 Ohm resistor etc. What model of diode do i need any particular type of resistor? I was trying to compare the picture to the readme to the pdf. I can’t find a specific part list for everything used to build the cart.

Comment on PicoA10400 Flashcart for Atari 2600 & 7800 by xAD / nIGHTFALL

xAD / nIGHTFALL — Mon, 05 Jan 2026 18:09:49 +0000

@Stephen

https://github.com/aotta/PicoA10400

https://github.com/aotta/PicoA10400/tree/main/Pico10400_alternative_version_by_xAD-Nightfall

Comment on PicoA10400 Flashcart for Atari 2600 & 7800 by Stephen

Stephen — Mon, 05 Jan 2026 13:42:18 +0000

Hi there I want to undertake this project. Do you have a complete parts list? The only thing I see is a references to an led resistor and the SPDP switch. A complete list would be helpful so I can procure the right stuff.

Comment on Nintendo NES (Mattel) PAL with NESRGB v2.0 (CLONE) by xAD / nIGHTFALL

xAD / nIGHTFALL — Thu, 20 Nov 2025 11:09:24 +0000

@CristianCG To eliminate any doubt that the NESRGB card is not working properly, you should remove it and put the PPU back on the socket, if it works it is the card, otherwise if it does not work it could be the PPU, the nesrgb card or some soldering or short circuit.

Comment on Nintendo NES (Mattel) PAL with NESRGB v2.0 (CLONE) by CristianCG

CristianCG — Thu, 20 Nov 2025 10:59:55 +0000

I bought this kit for my NES PAL (B), but it doesn’t seem to work the same as yours :(.
When I turn on the NES, it works fine, but after a few seconds artifacts appear (flashing pixels). Eventually, there are so many that the image is no longer viewable.

Comment on Flash Multicart for SABA Videoplay (Fairchild Channel-F) by Test

Test — Thu, 06 Nov 2025 17:28:48 +0000

@max

max : ciao, grazie per il contributo. Per curiosità, ma se volessi aggiungere un altro gioco alla lista come dovrei fare? Mi pare che questa non sia come le altre cartucce basate su Pico che si collegano alla usb e poi si copiano dentro i files.

Comment on Commodore Floppy Drive 1541-II Harlequin Version (STL) by xAD / nIGHTFALL

xAD / nIGHTFALL — Tue, 04 Nov 2025 17:23:53 +0000

@Marino

Ciao, dovrebbe essere questo: https://www.thingiverse.com/thing:4084088 , ma va testato , non ho idea se il lavoro complessivamente e’ stato fatto bene, non sembra.

Comment on Commodore Floppy Drive 1541-II Harlequin Version (STL) by Marino

Marino — Mon, 03 Nov 2025 08:57:07 +0000

Complimenti! una riproduzione perfetta!
Che tu sappia esiste un progetto analogo per riprodurre il case del C64 versione “biscotto”?
Grazie mille
Marino

Comment on Acetronic (Radofin 1292) MPU-1000 Composite MOD by Luke

Luke — Sun, 02 Nov 2025 18:24:35 +0000

Hi, I modded mine also slightly differently using a 20K pot from pin2 and gnd and picking up the output from the centertap. I searched for the amplified output of the audio signal with a scope a (.9-1V p2p max) and hooked up there. Here are the pics (my AudioSonic – Radofin is a latter revision than the one of the OP):
https://postimg.cc/sMCPSr2K
https://postimg.cc/yDrVtVSH
https://postimg.cc/ZBz0sT1j
https://postimg.cc/9rg05Pvv
https://postimg.cc/V5LzfrBM
https://postimg.cc/YLhc1Fbn
Original:
https://postimg.cc/jWXBmc1y
https://postimg.cc/NKvV0ZqN
https://postimg.cc/H8G02DtR
Cartridge:
https://postimg.cc/TLH2MfS6
https://postimg.cc/CRHFMjtC

I trimmed it just for the right contract (checking with a scope the p2p again) and it works fine on both my Composite input monitors.

I have 8 cartridges (the console was a present from my parents back in 1982) but it would be nice if we could dump them and put them on archive.org and make a multicartridge with all the games that were released. Hard project but maybe it’s possible if everyone starts dumping them! The eprom seems a 2kx8 “D2616″ (at least on 2K games) which shouldn’t be an issue to dump.

Comment on Australian Commodore 64 (replacement case for the C64) by Rob

Rob — Wed, 24 Sep 2025 08:02:51 +0000

@Justin Mitchell The injection mold was sold back in the day to be scrapped when the market ended for the commodore 64, there was just Micro Accessories of SA doing them in Australia and selling them throughout Europe through Eveshem Micro's as MASA were the dolphin dos manufacturer here in SA for them under licence. I know about 20,000 of the cases wer sold in Aus uncertain what we exported

Comment on PicoA10400 Flashcart for Atari 2600 & 7800 by SolverTwins

SolverTwins — Fri, 19 Sep 2025 21:16:18 +0000

Thanks for your fabulous Job, I will trying to modify, adding support for the a7800+ and a2600+, my solution is add a 2 lines LCD connected directly to the PICO and obtain the 5v from the cart/console , and add 3 buttons to navigate in the LCD, so you can select the game to be presented to the console, and you only need then to reset the console (not the a10400) and voila the game will work, I think that its posible, please can you tell me what do you think, THANKS

Comment on PenUltimate+ Cartridge VIC-20 3k-35k Ram Pack + Roms by Nobody

Nobody — Mon, 15 Sep 2025 19:08:00 +0000

Who has captured a .crt image of this to use in emulators?

Comment on ACT Apricot F1e Boxed by 1980s John

1980s John — Tue, 26 Aug 2025 23:25:10 +0000

Thanks for the F1e page. As per image #3, the F1e single sided floppy only held 315kB, not 360kB. This was because the early Sony floppy drive was 70 track rather than 80. HTH,
John

Comment on CompuThink Interface & Disk Drive 800k (DD DSK CTL P2) by P.Rijkes

P.Rijkes — Mon, 21 Jul 2025 17:53:11 +0000

Dear xAD from nIGHTFALL,

I am from Holland and I own the same original ExpandaPet DD DSK CTL P2 board
from Computhink. After doing the same repairs the board is function well for the
memory part but the floppy disk part is not. I connected an old Mitsubishi floppy
drive and I can do a $F,1. The floppy is formatted and I checked this by reading
the floppy back on a Commodore 1541 drive. The existing data on the floppy
was erased!

BUT doing a $DIR,1 gives me always: FREE TRACKS 00, and saving a basic program|
gives me: NO FREE SPACE.

Please are you willing to help me from this strange behaviour.

I looked at the pins on the board and it looks like a Shugard bus, BUT I can’t give
one pin a place. That is PIN 6 on the board. It’s a output from a NAND.
Do you known what function this pin has?

Hopefully you can help me.

With kind regards,
P. Rijkes

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