Ceriatone Forum

Ceriatone => Overtone => Topic started by: exocet on September 02, 2008, 09:09:58 PM



Title: New Overtone Layout
Post by: exocet on September 02, 2008, 09:09:58 PM
There's a new Overtone Special Layout published on the ceriatone site...dated 26th August.

Any ideas what the changes are?


Title: Re: New Overtone Layout
Post by: Jimmyd on September 03, 2008, 04:38:35 PM
I'll venture a studied opinion and say that Nik has formally incorporated some of the changes that were offered here in early summer based on the Ayan/Lerner/Zucker mods and subsequent discussions.

When comparing the April 1 rev to the August 26th revision I stopped counting after seeing no fewer then a dozen tweaks.

Jim



Title: Re: New Overtone Layout
Post by: Steven_nl on September 03, 2008, 07:37:38 PM
I think he did those in the May update. (I have the May version)

I'm curious about these last changes as well.


Title: Re: New Overtone Layout
Post by: bluesfendermanblues on September 05, 2008, 08:36:45 PM
I'll venture a studied opinion and say that Nik has formally incorporated some of the changes that were offered here in early summer based on the Ayan/Lerner/Zucker mods and subsequent discussions.

When comparing the April 1 rev to the August 26th revision I stopped counting after seeing no fewer then a dozen tweaks.

Jim



A dozen changes ???? what are talkin about?

There are only two changes in the august version compared to the may version!!

A: decreased snubbercaps on V2 from 390pf in may to 330 pf in august
B: decreased resistor value in the PSU the 3K9/2W has been reduced to 3K3/2W increasing PWR line plate voltages.

No big changes - and not important changes as well - Check the tweaks in the forum to see some of the important mods.


Title: Re: New Overtone Layout
Post by: bobgoblin on September 05, 2008, 08:47:52 PM
I think there was a change on the bass pot cap from .0012uf to .001uf, too.


Title: Re: New Overtone Layout
Post by: Jimmyd on September 05, 2008, 11:16:55 PM
A dozen changes ???? what are talkin about?

I didn't have the May layout.  My comment was comparing April to current.  Still it was an interesting exercise.

Jim


Title: Re: New Overtone Layout
Post by: Steven_nl on September 06, 2008, 08:15:50 AM
what would be the effect of those last changes?


Title: Re: New Overtone Layout
Post by: bluesfendermanblues on September 06, 2008, 08:27:45 AM
A dozen changes ???? what are talkin about?

I didn't have the May layout.  My comment was comparing April to current.  Still it was an interesting exercise.

Jim

Fair enough


Title: Re: New Overtone Layout
Post by: bluesfendermanblues on September 06, 2008, 08:30:08 AM
what would be the effect of those last changes?

Ad A) The lower snubber values on V2 gives more highs, when engaging the OD
Ad B) The lower resistor in the PSU gives more preamp anode voltages

Whether this is good or bad depends on preamp tubes used, taste etc.. its all very subjective