tube CD player (was Re: sizes (was Re: vacuum tube computer))

From: Eric Smith <eric_at_brouhaha.com>
Date: Mon Feb 1 17:28:27 1999

Dwight Elvey <elvey_at_hal.com> replied to my post about building a true "tube"
CD player:
> Building analog filters of the quality needed to do CD's
> is going to be some trick. Even many early designs used
> switched capacitor filters to get the needed responses.
> Tubes as digital multipliers would require massive
> amounts of parallelism to keep up.

No problem. The tube CD player simply has an AES/EBU (or S/P-DIF) coaxial
digital output. If you want a tube D/A to go with it, that's a separate
product.

The tube D/A would likely not use oversampling, but rather an 8-pole
analog filter.

If people want a tube oversampling D/A, that can be a more advanced, larger,
and more expensive model.
Received on Mon Feb 01 1999 - 17:28:27 GMT