There is one "Gotcha" to be aware of if driving a PAL c64 from an NTSC psu in the USA: Because the 9VAC input to the c64 is derived from a linear power transformer, the TOD "RTC" interrupt to one of the CIA chips will be at 60hz, not 50hz, so any software which depends on that "clock" circuit incrementing at 50hz will be wrong. On 6/17/2018 10:21 PM, Bill Loguidice via vcf-midatlantic wrote:
I use an American power supply on my PAL C-64. No issues. Same thing on the Atari 8-bit side.
======================================================== Bill Loguidice, Managing Director; Armchair Arcade, Inc. <http://www.armchairarcade.com> ======================================================== Authored Books <http://www.amazon.com/Bill-Loguidice/e/B001U7W3YS/ref=ntt_dp_epwbk_1> and Film <http://www.armchairarcade.com/film>; About me and other ways to get in touch <http://about.me/billloguidice> ========================================================
On Sun, Jun 17, 2018 at 5:12 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
So the PAL c64 has a different type of power supply. A european two prong type. Does anyone know what it will take to convert power to American 120V?
I need to start planning on how to get this machine up and tested at the next workshop June 30.
-- ========================================= Jeff Brace Vice President Vintage Computer Federation
-- Jonathan Gevaryahu jgevaryahu@gmail.com jgevaryahu@hotmail.com