No worries about the heater wires... as djroge pointed out not much stress on those wires...and also, Nik is using the same wires in his builds.
Here's a prove 


About the caps... all electrolytic caps are already wired, so don't need to worry about those. You need to do some ceramic ones... and for those is not important how you wire it. About PS caps... it will work no matter how you wire those, although some will say it's important to wire them correctly.
 

I did not connect the ground switch. That blue wire goes directly from fuse to power.
Check my last picture (the additional power connector)...
 

Same here 

 

Now, that's an awesome idea.
Thanks man!!

 

No you're better of with those 150uF.
It helps with the bass response at higher volumes... and it helps with the ripple as well
 

Cool rig man and an awesome tone.

Is that Overtone bluesmaster?

So, you're Bonamassa fan... I love his "The Ballad of John Henry" album... awesome player and the tone on that album is just awesome.
 

Here's something I find very useful.
...for example to daisy-chain amps if you're Bonamassa kind of guy  ... or to power loop effects, if you keep them near the amp.
 

Well I still have all my little HRM trimmers set at noon. It just sounds good to me, so I didn't tinker with that yet. What I learned about BM till now, is that setting clean sound takes some effort. Setting everything at noon doesn't work with BM. OTS will take that setting just fine. A good OD tone on the other hand is much easier to get from BM.

PS: I'm still not totaly acquainted with BM... I still need some time to get to know it better.
 

Yesterday I played both amps against my friends SF Twin...

...and the verdict is.... both amps can do the Twin sound 

We connected the Twin to G12-65 cab just to get as close as possible.

To get there, we had to set the tone stack on both amps differently...
On OTS I had to add bass and take away some mids... on BM I had to take away some bass and add treble. I even used a bright switch.
Both amps were more punchy and dynamic, with more presence (BM had even more presence I would say), I guess that old Twin is in need of a recap job.

Bottom line, both amps can do Fender tone reasonably well. I knew OTS can do that... I did this test before. I just didn't know where BM is compared to Twin.

 

Definitely more wires in Overtone... it needs more time, more patience, harder to track down errors.
With Express it's all about lead dress, it can get tricky if the amp turns out instable... but to me it's easier to build
 

Sure thing...

...glad to know all this is helping someone. Take it slow and enjoy it as much as I did.
 

I won't say anything until I try this amp along with my friends Twin and OTS.
 

Thanks man,
I'm waiting for my tech to build an HRM (hopefully this weekend), he sold the one he had .
So be patient clips are coming.

 

I was able to solder left and right pin in regular lugs and ground was soldered like ic-racer is showing... but slightly bend that terminal.

 

Man that's tough to say... first of all, I never used it in live situation... just home use, so I'm not really credible to say anything

...but I guess it would depend on the speaker/s used... if you have an efficient 12" speaker, it would do much better than a small 8" one.
One more thing... my champ is much more louder than my friends vibro champ... didn't really investigate why... but my point is, different champs might perform differently
I know for a fact people are using them live, so....


sorry for my vague answer