Reply 180 of 184, by Tiido
- Rank
- l33t
It depends a lot on what is going on in the particular machine and exact opamp itself as far as the floating opamps go. The high impedance inputs are going to react to whatever can disturb them (in this case seems mostly internal to opamp) and since the loop is open, maximal gain of the opamp is going to get used for these reactions and this is going to have effect other parts of the card through the power rails and capacitive effects. When some signal is ran through the card you'll get more revealing results, most likely in form of increased THD. Some cards will perform better than others with the fixes applied, it is good to see some quantification of it ~
I don't have any sort of working retrocomputing setup to do anything on for a while longer, much of my stuff is still packed away until there's space to deal with them (I moved to another country more than half a year ago)...
T-04YBSC, a new YMF71x based sound card & Official VOGONS thread about it
Newly made 4MB 60ns 30pin SIMMs ~
mida sa loed ? nagunii aru ei saa 😜