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16  Ceriatone / Overtone / Re: OTS HRM BM vs T-R CRS V2 on: November 07, 2012, 02:33:20 PM
I've got to say, I've learn so much about the amps since being around here. Never thought I'd ever be asking specifics on cap values etc!
17  Ceriatone / Overtone / Re: OTS HRM BM vs T-R CRS V2 on: November 07, 2012, 01:49:38 PM
Can't thank you enough for your time Pickmaster!

Was really digging your tone in your vids hence the copy cat Smiley

Again, thanks man, really appreciate it!
18  Ceriatone / Overtone / Re: OTS HRM BM vs T-R CRS V2 on: November 07, 2012, 12:24:07 PM
Hi There,
Once again, here is a layout of the OTS FM mod.eagle. easiest platform for really great tone.
With offered mods (in green) you‘ll get clean as good as TR or Bluesmaster with 100-120pf High cap on volume push pull, fat but sparkly same time.

Important tip! When you use single coil pickups, you can switch OFF V1’s  0.05uF NLF cap for fatter, more compressed tone , but for the humbuckers  better switch it ON otherwise you will have to much sug and early brake up.

Drive channel (ratio X – line mod) will give you fatter and more open drive tone which you can smooth with higher value snubbers and if you use 120pf cap on volume’s bright switch, accordingly you have to increase V2,2 snaber’s capacitance with 3 way switch with 470pf or 680pf caps (you can experiment and chose cap’s value according to your taste).

On the mid-boost switch increase cap to 470pf for slightly more high mids and remove 0.001uF cap on bass pot for slightly more lows and low mids (or better introduce a mini switch).

Finally change presence pot to 1K linear for better early and smoother action.

I hope this mods are easy to perform and you will have better sounding amp instantly.

Best wishes and good luck.



Hi Pickmaster,

Just wanted some clarification on a few pointers on your mods,

1. Above you recommend a 100 or 120pf on the preamp volume push pull, however it isn't on your schematics. Do you think it necessary to have this and also a 3 way bright switch with values 68 and 120pf? Perhaps having both will provide more flexible variations of all three values of brightness on the cleans, with a 1M A push/pull set with a 100pf, which will be me variation of all 3.

2. LNFB two way switch (on/off). This is standard on the FM ME so no change required here.

3. On your schematic, the V2,2 snubber’s capacitance is a 3 way switch with 470pf or 680pf caps, however I plan on going the rotary switch path, however only a 6 way is available for me. Which values for the 6 way do you recommend? If my understanding is correct of this function, with the bright switches engaged (both the 3 way switch and the push pull mentioned in point 1 above) creating glassy/two rock type cleans, this rotary switch will remove the highs on the OD channel only, but retain the high mids producing a rounder attack and fatter sounding note definition with the OD. V2s snubbers value static at 330pf & 250pf which is the value on the schematic (within the V2 socket/circle) or both at 330pf?

4. The change for the mid boost to 470pf is straight forward, although I'm looking at possibly getting a 500k A push pull pot on the bass pot to engage/disengage the bass cap.

5. Think the drive - ratio x line mod values are straight forward with the values 100k - cap towards X terminal ( to be paired with 100k L pot which is standard on the FM)  and 0.01uf to be used with a 1000v ceramic cap and then 150k as per standard. My question here, is if I increase to 0.02 or 0.03, can I roll negate the added fatness of the OD by tweaking the V2,2 rotary switch implemented if i find it too fat?

6. 68 k slope resistor, 2w. Also ok here, although is there any reason why to choose 2w over 1w?

7. Lastly, the presence pot changed to a 1k linear.

If you could please confirm and provide some advice on the above would be much appreciated! Took me a while to study the schematics and understand the reasoning of the mods! Currently in discussion with Nik on the mods, so I want to make sure I'm relaying the correct information to him.

Thanks so much pickmaster for sharing these mods. To be honest, I was thinking of saving up for a Two Rock CRS at one stage.... But that would mean selling most of my beloved gear and saving up for a while further.... Damn too expensive they are....
19  Community / Classifieds / Re: OTS In Australia? on: November 06, 2012, 01:41:37 PM
Still looking ?
20  Ceriatone / Overtone / Re: Transformers and choke on: November 05, 2012, 10:10:06 AM
You'll have more punch and headroom with MM transformers at gigging volumes, but will sound similar at lower volumes
21  Ceriatone / Overtone / Re: so ive got a OTS FM ME with NOS tubes and I bought a TR gainmaster.............. on: November 05, 2012, 05:34:13 AM
Cheers mate, would be keen to see how it goes!

I've set Nik the schematics from pickmaster to see if he'll it mod it so it's all underway for me too.
22  Ceriatone / Overtone / Re: so ive got a OTS FM ME with NOS tubes and I bought a TR gainmaster.............. on: November 04, 2012, 09:30:58 AM
Hey Hurtwood,

Let us know how the OTS FM sound after the mods, and how much of a difference it's made. You running a clator?

I'm heading towards the same direction as you with a FM, but just getting the finances together before I make the purchase
23  Ceriatone / Overtone / Re: BM JM Mod on: October 29, 2012, 11:05:23 AM
Thanks Doc!

You've sold me on a FM ME with your mods!
24  Ceriatone / Overtone / Re: BM JM Mod on: October 28, 2012, 09:21:01 PM
Thanks again Doc,

I was listening to your YouTube clips to get a feel of the tones of the modded OTS and gezzz some awesome tones and playing I might say! Typically like little wing.

With the mods offered, do you think it's nessacary I use a Clator? Seems the ME mods darkern the FM which is why the Clator is recommended with the FMs.
25  Ceriatone / Overtone / Re: BM JM Mod on: October 27, 2012, 02:02:35 PM
Hey Doc,

I've been following many of your posts lately as it applies to some of my thoughts around my next ceriatone purchase.

A question, would you recommend an OTS FM over a regular OTS the amp for your mods?

I guess what I'm after is something with two rock cleans but has the ability to from dumble OD to something really thick and fat without the dumble sax like tone. Not sure if it's possible...

Looking to keep the current cab to switch both amps between which currently houses a EVM12L.

Gotta say, I'm digging the BM but find it sounds best with the gain dimed low which it is low gain with quite a bit of highs coming through, and that's with the HRM bypassed. After something thicker with more gain, but still smooth without too much fizz, which i think wouldmprobably mean more mids and less highs.

Would appreciate your thoughts!
26  Ceriatone / Overtone / Re: Considering a treble bleed on the OD of a FM50ME on: October 23, 2012, 01:37:08 PM
Let us know how you go as I also experienced the OD channel being a little brittle with the Clator bright switch on. I had a TC HoF in the loop for a while, but found it was getting overdriven with the drive turned up beyond 11 which was the sweet spot for the OD. No problems since switching the HoF for a V2 WET though
27  Ceriatone / Overtone / Re: OTS HRM BM vs T-R CRS V2 on: October 23, 2012, 01:34:04 PM
Thanks Pick Smiley

I've been considering a second ceriatone after my BM and I was leaning toward the FM or HRM with different voicing on the clean to try retain the same cleans as the BM or towards two rock territory. Got me thinking perhaps I should go the FM route with your mods for the cleans...
28  Ceriatone / Overtone / Re: OTS HRM BM vs T-R CRS V2 on: October 23, 2012, 07:39:11 AM
Hi Pickmaster, I'm interested to know if these mods were performed before or after your YouTube clips?

So in all, you have the mods listed in the schematics with also MM tranny and choke?

29  Ceriatone / Overtone / Re: Considering a treble bleed on the OD of a FM50ME on: October 23, 2012, 07:35:38 AM
Have you tried winding the drive on the Clator to about 11:00 and compensate with the output control for volume? I've found this to dial out some of the darkness on the cleans while still maintaining a nice OD
30  Ceriatone / Overtone / Re: Newbie - Bluesmaster HRM 50 combo on: October 01, 2012, 09:54:28 AM
I'm with you on that the BM takes pedals extremely well although when playing in a band situation, the OD channel is so much more musical. I use the pedals mainly for low volume playing when I don't need to crank it up too loud, and when I need something more crunchy for those rock moods...

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