[HAM] Re: hammond Digest, Vol 4, Issue 6

[erno palonheimo]

On Wed, 2003-11-05 at 04:08, gandj wrote:

> >Sounds pretty much like a T-5xx series spinet. These have tonewheel
> >generator and scanner vibrato, but the amplifier section is solid-state
> >and has aggressive keyclick filtering.

> Any pictures of these "T-5s" I can't find it listed anywhere. If I had to
> guess, I would have said it was half (tonewheel) and half (solid state).

Well, if a B-3 is half tonewheel and half tube. ;-)

I meant different T-500 series models, such as T-522. Here are some
pictures:

http://home.wtal.de/h1/pic2.htm

> What is keyclick filtering? Sorry about this, I will be taking electronics
> in about a year, but for now, I know nothing. Sorry to be so ignorant, and
> thank you for your help.

It's a filter in preamp section specifically built to eliminate
'keyclick', or the contact noise of keyboard. Most people consider the
click a good thing, so filtering it out doesn't make much sense.