RE: Mark space ratio in 1531 data signal

From: Jeffrey Birt <*birt_j_at_soigeneris.com*> Date: Tue, 10 Dec 2019 07:17:59 -0600 Message-ID: <049101d5af5c$3f0c4b40$bd24e1c0$_at_soigeneris.com> · birt_j_at_soigeneris.com

I don't understand the question. There is only one signal from the cassette read head. It gets amplified and 'squared up' to make a digital signal out of it. That is it. 

For writing the tape head is driven to saturation or not. It is not very complicated.

Jeff Birt

-----Original Message-----
From: smf <smf_at_null.net> 
Sent: Tuesday, December 10, 2019 6:07 AM
To: cbm-hackers_at_musoftware.de
Subject: Re: Mark space ratio in 1531 data signal

On 09/12/2019 14:37, Mia Magnusson wrote:
>
> The schematics has all the answers (for us who can read schematics):

Right, you might as well have written it in greek. So for those who can't, it would be nice to see a non conflicting description of what analogue signals get converted to what digital signals.