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1  Ceriatone / Overtone / Re: it's really quiet and hums!!!! on: May 13, 2008, 02:49:29 PM
Have you grounded the ground bus over the pots? Possibly you have but its too easy to forget. Must be an obvious grounding issue.... Undecided
2  Ceriatone / Overtone / Re: New Overtone layout !! on: April 16, 2008, 09:40:28 AM
As far as I can see Nik has changed the OD level pot to 100K and pre OD resistor from 150K to 220K. Exactly what I'm planing to do with mine OT  Wink.
mcincu, what are the benefits doing this?
3  Ceriatone / Overtone / Re: Build my Overtone, two problems. on: March 22, 2008, 09:42:18 PM
Have you tried to reverse the OT primaries? In my kit the colors of the wires were mixed compared to the layout.
Check all the groundings. Have you connected the ground bus (over the pots) to ground?
 No, there should not be that difference between jazz & rock, just difference in eq. Check your layout and values!
Just hard work..check & check & check and.... Grin
4  Custom amp building, Prototypes and other amps / Mods and Tweaks / Re: Overtone Tweaking on: February 07, 2008, 12:04:21 PM
I'm on a similar track.

Master bright cap removed.
330pf snubbers on V2a and b.
120pf bright cap.
150 K pre OD resistor changed to 220k.
270pf/220K loop network removed.
Can't decide if I want to switch out the skyliner mid values or not.

I may try upping the OD plates to 180/220 and adjust the OD cathode bypass caps and resistors to typical values...seeing what the voltages are and adjusting the dropping string.

Also, I'm going to play with the presence cap value...maybe try a .47uf or something in between.

BGSoul...What is your opinion on adding a snubber between the PI plates on this amp?  There are a quite a few spots to smooth things out I 've just never tried it there.  Simple enough to try I guess.

I have to run som more tests on my amp. I'll try changing the bright cap, as it is now its unusable. But as my amp sounds now I'm rather satisfied (for a while I think Grin)
About snubbers on PI, I dont know - just to try!
As I us my other amp (CAA OD100) I always use it on the "gain channel" but lower my guitar vol to get a little crunchy sound for chords. When I try the same on the Overtones overdrive channel (not PAB engaged) the sound is to muddy Sad. And the clean channel is much too clean.... How do you use it - chords / solo?
5  Custom amp building, Prototypes and other amps / Mods and Tweaks / Overtone Tweaking on: February 06, 2008, 08:23:07 PM
I assembled my Overtone kit recently. Great stuff. Everything was in the package ok. As a tip for you strat players this is what I did:
- Removed the 15pf cap on the master volume.
- Changed middle pot to 100k (add 180k cross the pot) and change middle cap 0.01u to 0.05u.
- Increase 270pf snubber caps on OD to 330pf.
- Remove 270pf/220k filter at the loop. This is bypassed with anything (or a patchcable) in the loop. But connected it really ruins the tone.

Now I have an awsome amp Grin Smooth dist and a great tone.
Good luck!
Håkan, sweden
6  Website, Store / Support / Overtone Kit builders-OT primaries on: January 31, 2008, 09:21:56 AM
Hi!
Just a notification for you Overtone DIY Kit builders:
Beware of the phase of the OT primaries. On the layout these were changed, but on the photos they were right.
If you connect those wrong (as I did  Grin) there will be a lovely Wink feedback.
7  Ceriatone / Overtone / Re: Footswitch for Overtone on: January 27, 2008, 03:49:10 PM
Same for me! No footswitch parts with the kit I got. Nik, should it be included?
Håkan
8  Website, Store / Support / Re: Overtone layout error? on: January 21, 2008, 08:54:06 AM
OK! Thanks! I got answer from Nik. The layout has an error, should not be shorted.
9  Website, Store / Support / Overtone layout error? on: January 20, 2008, 08:00:27 PM
My build is getting closer to "ready". Just puzzled about the layout:
The 220K/270pF in parallel at the pre amp in / out is shorted with a jumper. Both in the layout schema and seems so in the pictures. But then the resistor and cap is shorted and not in use! Have I misunderstood something??
10  Custom amp building, Prototypes and other amps / Mods and Tweaks / Buffered loop on Overtone? on: December 31, 2007, 02:37:39 PM
Hi!
I'm waiting for my Overtone Kit (its at the Swedish customs, they will rob me some $  Sad) I was thinking about the effect loop on the Overtone, its kinda simple unbuffered, and many people use a buffered loop with it. I am going to use my Skrydstrup Line mixer together with a rack effect. Have I use for a buffered loop when a use a line level mixer? Can I just put it in the Overtone loop?
Thanks for answers, and a Happy New Gear Grin
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