Transformers for a Dr.Z Route 66

Tube or solid-state, this section goes to eleven!

Re: Transformers for a Dr.Z Route 66

Postby ukbrightonbloke » 02 Nov 2012, 15:47

Nice idea about the bias! As soon as I get the cabs then I will be making some clips, might hear the neighbours complaining in background though! haha

Chris
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Re: Transformers for a Dr.Z Route 66

Postby Mato_ZA » 13 Nov 2012, 17:25

Hello guys

I'd like to ask you about schematic.

What does the orange arrow represent? Shielded wire?

What is the voltage level of "X" PT tap?

Thanks.
Mato
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Re: Transformers for a Dr.Z Route 66

Postby ~arph » 13 Nov 2012, 20:55

Ferrite beads and 50V I guess.
In the quiet words of the virgin Mary: "Come again?"
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Re: Transformers for a Dr.Z Route 66

Postby snofla1900 » 14 Nov 2012, 16:12

Imho I think the orange arrows stand for shielded cable.
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Re: Transformers for a Dr.Z Route 66

Postby darkbluemurder » 14 Nov 2012, 16:13

Mato_ZA wrote:What does the orange arrow represent? Shielded wire?


Yes, that's how I would interpret it.

Cheers Stephan
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Re: Transformers for a Dr.Z Route 66

Postby Motter » 14 Nov 2012, 20:39

Whats that metal box (not the transformers) on top of your amp chassis, near the preamp tubes?
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Re: Transformers for a Dr.Z Route 66

Postby ukbrightonbloke » 21 Dec 2012, 09:54

Sorry for such a delay.

This houses the 6v voltage rectifier to power the led's and switching power and the switching relays. It gets its power from the heater voltage, all cables fed through chassis.

The cabs arrive today so will post the pics once amp installed :)

Chris
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Re: Transformers for a Dr.Z Route 66

Postby ukbrightonbloke » 02 Jan 2013, 13:28

Happy New Year All!

Thought might like to see amp in cab! waiting on the celestions (1 x vintage 30 and 1 x creamback) to go in cab.

20121221_145359.jpg


20121221_145409.jpg


20121221_145420.jpg


Cabs were made by Chris Uff, who advertises through Amp Maker. Great build!

Once speakers loaded will crank it up for some sound bites!

CM
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Re: Transformers for a Dr.Z Route 66

Postby clarkkentjt » 27 Feb 2017, 01:24

ukbrightonbloke wrote:Hi Pete, thanks for message.

I have cranked it and to be honest it seems all ok! the PT seems to be working fine and not getting hot, only warm from the massive gold lions (which are great!)

Here is the final schematic with switching and bias component change. I had to tweak the resistors in the bias circuitry to get the desired bias (38ma for me at mo)

mazz66-v2.JPG


The 66 chanel sounds pretty much like the 66 i tried at a local shop. the Mazz chanel sounds great too, harder than the 66, and much more like a jtm 45/plexi with kt66

I am waiting on the cab to be made for the amp and speaker (from cabs by chris, ampmaker)

will be fitting into this

TWEXPHeadcabgreenfrontview44.jpg


The cab will be based on the Drz 2 x 12 which has a mix of a vintage 30 celestion and a 12h greenback but i will be using the vintage 30 (50w) and one of the new creambacks (60w)

Hope all this info helps

Chris



Hello ukbrightonbloke,
My apologies for resurrecting a 4yr 3mo old thread.
I stumbled onto this and love your design. Fantastic that you combined 2 channels into one amp. To get to the point, is there any way you would be willing to share the layout and BOM ?
My intentions are purely to build one for myself and enjoy the tone.
I understand the basics of a schematic, but a wiring layout would be ideal.
All the best,
-Jeff
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Re: Transformers for a Dr.Z Route 66

Postby Manfred » 27 Feb 2017, 08:03

I did simulate the bias voltage circuit by the PSU-DesignerII,
where the 4.7 Kiloohms resistor was moved to the transformer winding.
The resistor works in the samer manner, because the DC-resistance of the coil is connected in series to the filter circuit.
So I found 65 Volts for the level of the PT "X" tap.
Using 60 Volts the circuit could also work, but in a smaller range.

65V_47k.jpg


65V_72k.jpg
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Re: Transformers for a Dr.Z Route 66

Postby Aharon » 10 Apr 2017, 15:22

Very nice build ,great work.
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