[VIC-20 Power Supply Replacement?]

4 hours ago, Fernan808 said:

Hello, im new here, i saw your post about a vic 20,  2-prong power connector that you 3-d printed, i also have a vic 20 with that 2 prong setup, but i dont have a psu, does anybody know where to find the 3d printed connector? (i have not found it on thingiverse)

I too had a hard time finding it - thankfully I "liked" it: https://www.thingiverse.com/thing:4658989

[VIC-20 Power Supply Replacement?]

It seems the power switch on my VIC-20 won't budge - anyone know of a replacement that fits?  Its stuck in OFF position.

[VIC-20 Power Supply Replacement?]

On 5/1/2021 at 3:31 AM, asdf87 said:

I've also done the following mod. - added a 2.1mm socket which bypasses the rectifier and goes straight to the regulator - as I've also replaced the LM323 with a switching equivalent, there is no more heat being generated by either the regulator or the rectifier.  And it draws under 1A (if not using a datasette).

 

You lose 9VAC on the User Port, etc. but I still have the option to use a normal power supply if I ever need that (unlikely?).

 

I have a VIC-20 that I don't know if it works, and I don't have 2-prong power supply.  I find your mod intriguing.  Do you have to add second power switch? 

 

I was watching this video from Adrian Black where he temporarily powers a VIC-20 from a bench power supply:  https://www.youtube.com/watch?v=BGnNlVzUCZM&t=528s

 

I noticed his VIC-20 runs even though the voltage regulator is gone.  I know little about electronics, how is this working?

 

[Apple IIe floppy emulator]

Papalapa,  how did you end up liking the wDrive?  Thanks!

[Commodore 128 - 80 Columns w/OSSC]

I was able to dramatically improve the picture of the CGA2RGBv2 & OSSC combination by doing a deep dive into the OSSC settings with help from VGP forum:

 

https://videogameperfection.com/forums/topic/commodore-128-cga2rgbv2/

 

Attached are some photos - it looks a lot better in person, for example none of the color fringing in the GEOS128 photo is present in person.

 

Settings I am using:

240p / Line2x

H. samplerate 1016
H. synclen 20
H. backporch 241
H. active 640
V. synclen 3
V. backport 36
V. active 200
Sampling Phase 11 degrees

 

 

[Commodore 128 - 80 Columns w/OSSC]

On 6/30/2020 at 2:06 PM, Moe said:

Thanks for the info!  The CGA2RGB can convert from RGBI to RGBs (https://gglabs.us/node/2063), and the OSSC can accept an RGBs signal.  I order a CGA2RGB to test with my C128 and OSSC. 

 

Once I receive the CGA2RGB I'll update this topic with my results.

 

Moe, what was the final verdict?  I'm trying to attempt the same - CGA2RGBv2 / OSSC / C128 in 80-column mode.  

Any settings you had to tweak on the OSSC?  Thanks!