Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: errlan on April 22, 2011, 12:37:38 pm

Title: AC30 Build
Post by: errlan on April 22, 2011, 12:37:38 pm

I'm want to do scratch build of the AC30.

I see the parts listing has no transformer and choke part numbers.  Where would I find the information and what other parts are missing?

Robert.

Title: Re: AC30 Build
Post by: jerrydyer on April 22, 2011, 12:41:02 pm

jst go to the hoffman store and look at the ac30 trannies.
he makes it simple.

Title: Re: AC30 Build
Post by: errlan on April 22, 2011, 04:56:58 pm

I searched the transformer section in the store and use the search catalog function and have found nothing.

Any other ideas?

Robert

Title: Re: AC30 Build
Post by: 38Super on April 22, 2011, 09:45:34 pm

Check with http://www.rjguitars.net

He can get you an Edcor, Pacific or Heyboer in many different flavors. Can get you a standard production tranny or can also have one wound for you for a few extra $$.  I made an order through them and am pleased - decent pricing and shipping.

Check out the ampgarage forum for sime interesting ideas.  There is a lot of info there on Trainwrecks, Dumbles, etc.  Maybe you find a TW Rocket clone a possibility?  It's a 4 x EL84 output with some crunch in the preamp.

cheers,

rob

Title: Re: AC30 Build
Post by: archaos on April 23, 2011, 04:15:56 am

Quote from: errlan on April 22, 2011, 04:56:58 pm

I searched the transformer section in the store and use the search catalog function and have found nothing.

Any other ideas?

Robert

http://www.tubesandmore.com/ (http://www.tubesandmore.com/) have all the stuff you need to build an AC30 from scratch.
I advise you the Hammond trannies & chokes, as far as they are very good. Moreover, choosing Hammond allows you to build either a vintage or a modern style AC30.

Title: Re: AC30 Build
Post by: kagliostro on April 23, 2011, 07:14:51 am

Here you can find materials and infos   :spam1:

:icon_biggrin: http://www.hoffmanamps.com/ :icon_biggrin:

Kagliostro

Title: Re: AC30 Build
Post by: errlan on April 27, 2011, 03:26:10 pm

Thank you all for the help.   :worthy1:

Title: Re: AC30 Build
Post by: bluesbear on April 27, 2011, 06:04:20 pm

The OT might matter but voltage is voltage. There's no reason in the world to pay extra for a PT that's advertised as for an AC30. Hammond, Heyboer, Edcor, even Weber are fine for a PT as long as the voltage and current ratings are correct. Don't let hype trump science.
Dave

Title: Re: AC30 Build
Post by: Inca Roads on April 29, 2011, 11:39:55 pm

I agree with 38Super, you can't go wrong with Rj's units.  He can also make you a chassis I believe.  Mag comp has reasonably priced AC30 units also : http://www.classictone.net/Vox-Style-Transformers.html