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Author Topic: New Amp Kits  (Read 23292 times)

MrBump

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New Amp Kits
« on: August 19, 2008, 09:13:06 AM »
Anyone seen these?

http://www.axiomatic-music.co.uk/acatalog/MOJOTONE_AMPLIFIER_KITS.html

Look quite interesting...

Mark.

EDIT - actually, they're quite pricey...
« Last Edit: August 19, 2008, 09:16:51 AM by MrBump »
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WezV

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Re: New Amp Kits
« Reply #1 on: August 19, 2008, 09:35:49 AM »
i got an email and had a look yesterday... the courses make it quite interesting though - but yeah, definately pricey

i noticed they were available from allparts as well

http://www.allparts.uk.com/Allparts-building-courses-c-550.html


Twinfan

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Re: New Amp Kits
« Reply #2 on: August 19, 2008, 09:58:33 AM »
They're Tube Amp Doctor kits by the look of it.....

MrBump

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Re: New Amp Kits
« Reply #3 on: August 19, 2008, 10:14:24 AM »
They seem to be WAY more expensive than the Ceriatone ones...
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Twinfan

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Re: New Amp Kits
« Reply #4 on: August 19, 2008, 10:15:47 AM »
They are.

WezV

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Re: New Amp Kits
« Reply #5 on: August 19, 2008, 11:03:57 AM »
i thought they were mojo tone - just as expensive in the states

http://www.mojomusicalsupply.com/products.asp?id=44991

tomjackson

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Re: New Amp Kits
« Reply #6 on: August 19, 2008, 05:09:09 PM »
These kits look far better value:-

http://www.astonelectronics.co.uk/

I think somebody on the forum built one of these recently, hopefully they will chip in with a review.....

jpfamps

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Re: New Amp Kits
« Reply #7 on: August 19, 2008, 05:37:48 PM »
To be honest there isn't really much difference in price between these kits once import duty and components are taken into consideration. For example the cab (a Tweed covered cab will be more expensive than a Tolex covered) and chassis (chrome plated + silkscreened) in a Tweed Mojotone kit is inherently more expensive than a bare metal chassis a la Astonelectronics. Additionally transformer quality (and hence price) can vary considerably. Building your own amp is often less cost effective than buying one.

As ever you get what you pay for......

WezV

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Re: New Amp Kits
« Reply #8 on: August 19, 2008, 06:00:18 PM »
i think the weber ones look pretty good in terms of price, the size if the range and the amount of options you have for each model... also a EU transformer does not cost extra

https://taweber.powweb.com/store/kits.htm

sgmypod

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Re: New Amp Kits
« Reply #9 on: August 19, 2008, 06:22:27 PM »
Yeah have built an aston kit..easy clear instructions even for a novice like me with schematics and pics of where everything goes and backup on the phone if it goes wrong..forgot to add also asked for mod to kit to have it 6v6 instead of el84...no prob..and great sounding amp
« Last Edit: August 19, 2008, 06:44:47 PM by sgmypod »
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tomjackson

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Re: New Amp Kits
« Reply #10 on: August 19, 2008, 08:59:26 PM »
To be honest there isn't really much difference in price between these kits once import duty and components are taken into consideration. For example the cab (a Tweed covered cab will be more expensive than a Tolex covered) and chassis (chrome plated + silkscreened) in a Tweed Mojotone kit is inherently more expensive than a bare metal chassis a la Astonelectronics. Additionally transformer quality (and hence price) can vary considerably. Building your own amp is often less cost effective than buying one.

As ever you get what you pay for......

Well you do get what you pay for but you can see the attraction of building, say, the kit sgmypod has built against buying something like a Victoria 5F1.  It might not have the right tweed, chrome plated chassis or cabinet i.e. visual vibe, but presuming (and I have no reason to believe otherwise) that Aston supply well speced Transformers etc the cost difference is massive.  You could make a flat-packed solid pine cabinet, put in a Celestion Blue and still have £400 change.
The upcharge for such things as carbon comp resistors and orange drop caps would be minimal.

Assuming the Aston kit is based on the 5F1, would they actually sound much different?
Or would the aston sound better because of the bigger cabinet and better speaker?

I'm not saying kits are answer for everybody, but if you can solder, and are not to fussy about aesthetics and want a simple circuit vintage design, then they look excellent value.  Plus you get something out of building the thing....


FELINEGUITARS

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Re: New Amp Kits
« Reply #11 on: August 19, 2008, 09:07:02 PM »
The courses are being run by John Dickinson - a friend of mine, up at his studio/workshops in Crystal Palace

I'm keen to do one , although I even keener to the the Egnater course - but that is in Detroit

http://www.youtube.com/watch?v=sBrdbWdNrJw&feature=related
http://www.youtube.com/watch?v=8QY3gfxTfTw&feature=related
« Last Edit: August 19, 2008, 09:13:36 PM by FELINEGUITARS »
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jpfamps

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Re: New Amp Kits
« Reply #12 on: August 20, 2008, 12:42:34 PM »

[/quote]


Well you do get what you pay for but you can see the attraction of building, say, the kit sgmypod has built against buying something like a Victoria 5F1.  It might not have the right tweed, chrome plated chassis or cabinet i.e. visual vibe, but presuming (and I have no reason to believe otherwise) that Aston supply well speced Transformers etc the cost difference is massive.  You could make a flat-packed solid pine cabinet, put in a Celestion Blue and still have £400 change.
The upcharge for such things as carbon comp resistors and orange drop caps would be minimal.

Assuming the Aston kit is based on the 5F1, would they actually sound much different?
Or would the aston sound better because of the bigger cabinet and better speaker?

I'm not saying kits are answer for everybody, but if you can solder, and are not to fussy about aesthetics and want a simple circuit vintage design, then they look excellent value.  Plus you get something out of building the thing....

[/quote]


Absolutely. You can save a lot of money by making your own cabs etc, however I expect many people don't have the tools/ space or expertise to do this. The main pain for me when building an amp is punching the chassis. The novelty of making nice round holes using a chassis punch soon wares off! Also having a proper panel gives the amp a nice pro finish.

I can't really comment on the quality of the transformers used in the Aston Electronics kits as I haven't seen them. What I will say is that there are many factors that add significantly to the cost of manufacturing a transformer that aren't always apparent in the final product. Regardless their kits look very good value.

The Aston Electronics 5W amp has tone controls and uses an EL84 output valve, so won't sound like a Tweed Champ, although I'm sure you could build a Tweed Champ by modifying the kit.



« Last Edit: August 20, 2008, 12:44:19 PM by jpfamps »

tomjackson

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Re: New Amp Kits
« Reply #13 on: August 20, 2008, 05:04:26 PM »
Yeah, it would have to be pre-punched all the way for me :)


I think sgmypods was the 6v6 version which is basically a champ with tone control.

I agree about the Transformers, often overlooked but one of the secrets to good tone.  That's why Mercury Magnetics do so well!

sgmypod

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Re: New Amp Kits
« Reply #14 on: August 20, 2008, 06:24:57 PM »
Yeah mine is a 6v6 so modified circuit..to orig kit but champ like master vol, vol tone......bought top to make it look like a birdcage, then bought a flat pack cab....turned on head, routed for controls..now a combo
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