Devil's workshop

[Mouse]

Originally Posted by Ithamar1

Girl, I love you, can we marry?

Haha anytime darling, anytime

[Mouse]

some music is missing here... 'kumova slama' means milky way

You Tube

You Tube

[Mouse]

Power up or ampliFire?

[Mouse]

[Mouse]

here is testing of the new amp. friend of mine have a rehearsal room with an oscilloscope and other nice things at his work (Ericsson Nikola Tesla corp.)
we had some minor problems with amp, it was little fuzzy when maxed. after inspection we found that 'hi cut' control potentiometer (new one) is causing the trouble so we replaced it with new one. cut control is part of the post phase inverter master control (ppimv) in this style of amp which is voxish ef86 preamp with ala matchless 6pole position voice dial or notch and marshally type phase inverter/power amp.
ef86 has distinctive harmonic quality once the 'knee' is dialed nicely and marshall output certainly color the behavior of the amp causing the 4xel84 to drive snot out of them. amp is cathode biased, here is some doodling.


recorder is zoom h2, lesliepaul straight into amp.

36watt ef86 4xEL84 amplifier - YouTube

36watt ef86 4xEL84 amplifier - YouTube

[mdubya]

Wow. There's that Peter Green tone that so many are chasing.

[X–Ray]

__________________

see my comments on youtube

[alligatorbling]

man that thing barks out some ferocious tone!!!!!!

[bon-yr-aur]

very awesome

[Pinkie]

Wow that is snarly for sure.

[Mouse]

Thank you guys and girls, here is trial CNC faceplate ride

CNC faceplate - YouTube

CNC faceplate - YouTube

[Goran]

The wiring is very neat and nicely done! I love it. This is boutique style!
The sound is quite amazing, I have to say. I also recognize some Peter G., wow this EF86 sounds really good. You managed to get the best out of a EF86, respect!
The transformers are really big, I can only imagine how incredible this sounds live!
Very good work!

[Mouse]

Thanks amigo!
Yeah big iron, output trafo is suitable for Hiwatt 50 watt and it's done Partridge style, very complex interleaving, winded on the old 70's audio iron. clip is recorded with single 12" G12H 30W celestion anniversary so even more air is expected with 2x12" format (G12H30 Heritage 55Hz and Alnico Gold) Output transformer is obviously capable to feed well these boys

[Mouse]

Backplate installed.
Four el84 and GZ34 are near the edge of the back aprox. 1cm /half inch and it gets pretty hot so I decided to go with minimalistic design.

[Ithamar1]

Dude!!! That sounds awesome! My kinda sound.

I have a co-worker who drives through Zagreb a few times a year to his family.. dont be suprised if I pop up suddenly on your doorstep! Haha

[Mouse]

Originally Posted by Ithamar1

Dude!!! That sounds awesome! My kinda sound.

I have a co-worker who drives through Zagreb a few times a year to his family.. dont be suprised if I pop up suddenly on your doorstep! Haha

Now I'm warned!
Richard you are welcome!!!

[Mouse]

Little bit of specs of this 'thing'

- Cathode bias 4xEL84 330V @ anodes
- Preamp EF86
- Phase inverter ECC83
- Rectifier GZ34
- Mains Transformer by Odeon Transformers, Rijeka, Croatia
Power:170 VA
Primary:0/230 Volt
Electrostatic shield
Secondary: 290/275/0/275/290 Volt(AC) @ 0.20A (DC)
0/5 Volt @ 3A ( AC) Rectifier
3,15/0/3,15 Volt 6A (AC) Heaters

- Output Transformer - Leslie's - complex interleaved Partridge/ Hiwatt style 50watt, winded on the 70's iron.
- Tube sockets- 9 pin military, made in england. rectifier 8 pin- belton
- Paxoline board- Handmade 60's style
- Capacitors-
Electrolytics:
power: JJ 32x32 uF, board F&T, ROE
coupling- nos 60's mustard/mullard philips, roederstein mkt, roederstein military 1% tolerance(1963), sozo
- Alpha pots
- 6 way notch rotary switch- Lorlin UK
- Jacks cliff style by Neutrik
- Tolex & grill cloth- Mojotone USA Mojotone.com - The Best source for Vintage Amp Parts, Cabinets, Guitar Parts, Bass Parts, and Pickup Parts
- Cabinet by Dean's wood guitars
- Leather Handle by Silk Dobro do
- Faceplate / back plate by Miha
- Aluminum chasis by Modulus amps, Kirriemuir, Scotland, UK MODULUS AMPLIFICATION
- Speakers 2x12'' - Celestion G12H30 55Hz Heritage, Celestion Alnico Gold G12 50Watt

[Mouse]

it is hard to take clear picture with low pixel camera when it's raining ...

[Mouse]

It is hard to record it in a small room.. problems just like with ac30. Two 100dB speakers/huge harmonic content/ are pumping 100dB against walls etc. The 'thing' is perfect vox/marshall marriage. very intuitive, synergetic amp by design

ef86 36watt guitar amplifier - YouTube

ef86 36watt guitar amplifier - YouTube

[Mouse]

Forgot to tell, LP straight into amp.

[gtr-tek]

That is a fine sounding amp! It does the clean/dirty quite well and has the notches in the right places!

[Mouse]

I played bit of music with my friends last saturday. there were a lot of mistakes but we managed to draw picture and i'm pleased with our first concert.
lets share some with you

Drums- Goldy
Fretless Bass- Dario

Leslie's Back- Atlantis, South Pacific - YouTube

Leslie's Back- Atlantis, South Pacific - YouTube

Cat's eye - YouTube

Cat's eye - YouTube

Leslie's Back - Rebirth - YouTube

Leslie's Back - Rebirth - YouTube

[Mouse]

excerpt from the tune Phenomena- live

Leslie's back - Phenomena live - YouTube

Leslie's back - Phenomena live - YouTube

[Quill]

Freakn' fantastic, man.

Mouse - are those real Piher resistors on that board? And honest-to-goodness Mustard caps? If they are - where on God's green earth did you ever find those?

/ I don't really expect you to reveal your source, if I'm really looking at what I think I'm looking at - just, I dunno, expressing my astonishment and admiration.

And really - the work, the beautiful design - that is the beauty of it, who cares about a few rare parts, even if they are exactly the right rare parts ... !!!

[Mouse]

Originally Posted by Quill

Freakn' fantastic, man.

Mouse - are those real Piher resistors on that board? And honest-to-goodness Mustard caps? If they are - where on God's green earth did you ever find those?

/ I don't really expect you to reveal your source, if I'm really looking at what I think I'm looking at - just, I dunno, expressing my astonishment and admiration.

And really - the work, the beautiful design - that is the beauty of it, who cares about a few rare parts, even if they are exactly the right rare parts ... !!!

Thanks man!
Genuine nos mustards, some allen bradley resistors and iskra and some new. I had some from previous builds, mostly locally or ebay hunt. it's not that crucial for the tone itself as I learned from previous builds,transformers, voltages, speakers and overall tuning of the amp is far more important.
as resistor goes i like them to be resistive, all other is audiophools territory

[Quill]

Hah hah! Well, that's good to hear - I am inclined to trust your ears and experience on these matters. I'm embarking on a build of my own and, being a bit of a phool, am easily convinced I have to go to extremes to get stuff I maybe don't need.

Still, those old parts sure are pretty, aren't they? And framed in a beautiful build like that, they just glimmer like jewels. Yes? You agree, I know you do.

But I think I'm most impressed by the transformers. The heart and soul of the amp, no doubt!

[Mouse]

Originally Posted by Quill

Still, those old parts sure are pretty, aren't they? And framed in a beautiful build like that, they just glimmer like jewels. Yes? You agree, I know you do.

once i assembled board with lots of shiny colors, lots of people thought it was something special about it but i just wanted to look like coral reef

military RN resistors and 60's roe german caps in barbie pink are must have if you wanna make open minded fashion statement with a well built board

[Mouse]

Originally Posted by Mouse

Bob Dylan - Not Dark Yet - YouTube

let's continue this project. nitro brown sealer already applied and sanded so it is time for nitro transparent red shots.

[Mouse]

Here comes the sun...

The Beatles- Here Comes The Sun - YouTube

The Beatles- Here Comes The Sun - YouTube

[Mouse]