Farnell do TVCs..
http://ie.farnell.com/jsp/search/browse.jsp?N=500007+1000178&Ntk=gensearch_001&Ntt=attenuator&Ntx=
surely one could gut that
http://ie.farnell.com/jsp/search/browse.jsp?N=500007+1000178&Ntk=gensearch_001&Ntt=attenuator&Ntx=
surely one could gut that
Psychobiker said:
I have one of these in my parts bin - I'll have to swap out the ALPs in the last preamp I built and see how it compares.
my main rig (6N6P) linestage is using a Goldpoint 100K SMD and I'm quite happy with the balance. 23 steps is enough provided you aren't playing with tons of gain.
Not dealing with tons of gain here!! (µ of 20 on the 12SN7)
So, let's give one of those a whirl...for €20 it's not so bad!
50K or 100K?! My schematic goes 100, so I'll try
L
So, let's give one of those a whirl...for €20 it's not so bad!
50K or 100K?! My schematic goes 100, so I'll try
L
Forgive my ignorance - those DACT are stereo - two inputs and two outputs. Hope the separation is good
Just ordered these :
http://cgi.ebay.co.uk/DACT-type-23-...ageNameZWD2VQQcmdZViewItem?_trksid=p1638.m122
from further up the thread. Standby for performance appraisal when the whole project is done!
L
http://cgi.ebay.co.uk/DACT-type-23-...ageNameZWD2VQQcmdZViewItem?_trksid=p1638.m122
from further up the thread. Standby for performance appraisal when the whole project is done!
L
Whats the sound difference between stepped and pot?
Anyone tried this attenuator?
http://homepage.ntlworld.com/richard.maile/images/circuit_1_.gif
Anyone tried this attenuator?
http://homepage.ntlworld.com/richard.maile/images/circuit_1_.gif
kacernator,
I wouldn't consider that to be a good configuration. The input impedance will change with the volume. This may cause sonic changes depending upon volume.
I wouldn't consider that to be a good configuration. The input impedance will change with the volume. This may cause sonic changes depending upon volume.
As promised a report on the West Labs pots.
The guitar amp build is finished and the amp is very quiet. On the normal channel gain and MV of 80% gives audible hiss but God forbid that you stand in front of the amp and hit a power chord without earplugs in.
Bringing in the bright channel adds some noise but it is still a fraction of the desired output. If you are far enough away to not damage your hearing it sounds dead quiet.
The only problem I had is that the pot on the bright channel produces an audible click in the speaker when turning all the way down. I understand that this is not uncommon in pots of all types and I am not sure what I can do circuitry wise to correct it but it is not a huge problem anyway.
Over all they seem to be a quality product as far as I can tell.
Of course in this application I really didn't have the opportunity to do comparative listening that would be relevant to hifi.
mike
The guitar amp build is finished and the amp is very quiet. On the normal channel gain and MV of 80% gives audible hiss but God forbid that you stand in front of the amp and hit a power chord without earplugs in.
Bringing in the bright channel adds some noise but it is still a fraction of the desired output. If you are far enough away to not damage your hearing it sounds dead quiet.The only problem I had is that the pot on the bright channel produces an audible click in the speaker when turning all the way down. I understand that this is not uncommon in pots of all types and I am not sure what I can do circuitry wise to correct it but it is not a huge problem anyway.
Over all they seem to be a quality product as far as I can tell.
Of course in this application I really didn't have the opportunity to do comparative listening that would be relevant to hifi.
mike
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