It was an awesome evening... a room full of nice amps... we had a great player as well and I was talking bullshit most of the time 

We had all these amps...
5E3
5X3
Tweed Super 5F4

JTM 45 BB
JTM 18 TBM EF86
PLEXI 100 superlead
JCM 800

DC 30

TW Express
TW Liverpool
TW Rockit

OTS nonHRM
OTS HRM
OTS BM HRM

Here's a few pics...




 

A lot of people at the end, couldn't decide what amp sounded best... not even our demo guy. They were all special.
For me, my OTS BM HRM was the winner. 

Overtone Special (2x&L6) Skyliner nonHRM
Overtone Special 100 (4x6L6)  Skyliner nonHRM
Very smooth and warm sounding OD, lots of OD on tap but not as much as S&M, mid heavy cleans (in a good way). Amp that likes to sustain and compress. Easy amp to play... All knobs at noon and you have a sound to work with.

Overtone S&M Special Skyliner nonHRM
Overall brighter amp compared to standard OTS... clean tone is more or less the same (just a tad brighter), on the other hand OD is brighter, more aggressive sounding. Like OTS this amp likes to sustains. In my experience this amp is not designed to switch from clean to OD on the fly. You have to set the clean and stick with it... than go to OD, set the tone again and play that for a while.

Overtone Skyliner HRM
Overtone Skyliner HRM 100
Clean tone is practically the same as OTS or S&M. With additional tonestack at the OD stage this amp offers more flexibility, along with other switchable options (like deep or pull bright on the OD), this amp offers the most tone selections compared to other amps Ceriatone offers. Overall this amp has less OD on tap compared to nonHRM amps, it will not sustain as much as nonHRM and it somehow makes you work for the tone. That's my feeling about this amp.

Overtone HRM Bluesmaster
Overtone HRM Bluesmaster 100 
This amp is completely different. It has different cleans compared to amps above... cleans are more mid scooped, more fendery if you wish but with a lot of low end. This amp possesses a punch like no other amp. Again not as much OD as nonHRM, this amp makes you work for the tone too (very dynamic).

I played all of them... well all of 50W versions. I didn't play the 100W amps, which should give you even bigger tone.
Each amp is special and you can't really go wrong, if you're into D tone. I have met people buying these amps and later on discovered this amp is not really what they were after... but that's what it is all about - finding your tone isn't it.
 

All what was said above is based on my own experience and it might differ from what other will say. Tone is a subjective thing after all isn't it.

Beautiful isn't it
 

Ok to make things shorter this is the outcome... 


If you're interested in the building process just follow "My Website" link,... select "Guitars" and find "Homebrew P90 Telecaster"
 

Beautiful looking rig but is that baffle board made out of particle board?

O man those strats are 

 

This is possible but not an easy task... I would rather try to reduce the value of snubber caps first. If that's not enough than replacing cathode bypass caps for something smaller or you could also try bright cap on the OD level pot...

just to give you few ideas
 

It sounds like the original owner was shooting for a brighter sound.

BTW
slope resistor is the first resistor on the main board from the right.
MV cap should be right there on the MV pot... if amp sounds bright to you replace that with 15p or perhaps remove it and see what it does.
I'm not sure but treble cap could be coupling cap (I'm always confused about this one)... in this case its the third cap on the main board from the right

 

o man that's just............... I have no words

Welcome to the club.
 

+1

Sorry can't help you there... I didn't follow any measurements, I just made one which looked ok to me
 

Let's put it this way... It's to expensive to use only one Gold with 100W amp.

You definitely need two.
 

Check my clips...
http://ceriatoneforum.com/index.php?topic=1160.msg8569#msg8569
Bluesmaster does not sound harsh to me at all in fact, it sounds smoother than my OTS.
At least to me.

 

For an open back cab size is not that important.
My guess is those cabs are build with 18mm baltic birch playwood. I can't go wrong with using that.