Anyone repurpose a SS combo cab for tube amp?

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StrummersOfThunder
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Anyone repurpose a SS combo cab for tube amp?

Post by StrummersOfThunder »

Been watching all the frontman25r s and other cheap little fenders go for a song on trade me and it occurred to me that one could use the combo cab for a nice tube amp build. Maybe even the chassis once it's gutted.
Anyone done this ?

For example, here's two that would be excellent for a champ build.
https://trademe.co.nz/961585193
two Fender Frontman 15G amps -- parts/repair

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by Jay »

8" speaker though...
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Re: Anyone repurpose a SS combo cab for tube amp?

Post by StrummersOfThunder »

jvpp wrote:8" speaker though...
What is?

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by mrmofo »

only once, the cab was to narrow for the tube amp chassis.
There are still some that think the neck PU is moved to accommodate the extra frets which only proves they cannot detect the difference in length of each.

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by druz15 »

thought about it, I think the general problem you'll run into is the chassis' are built for tiny SS transformers, tube transformers are generally a lot bulkier. Having said that clever layout design and a bit of ingenuity you should be able to fit a fairly simple SE 2 tube circuit in a 10Watt SS amp pretty easily.

I actually have an old Kustom 100Watt Digital Head that I'm gonna rip apart one day and turn into a Supro style Head
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Re: Anyone repurpose a SS combo cab for tube amp?

Post by tubeswell »

Shorwah did. Meet my 1973 Bassman25

ImageFront view by tubeswell, on Flickr

ImageBack view by tubeswell, on Flickr

ImageChassis finished by tubeswell, on Flickr

ImageChassis front by tubeswell, on Flickr
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Re: Anyone repurpose a SS combo cab for tube amp?

Post by tubeswell »

Schematic for the above beastie

ImageBlues-Meister Mk II (Pro-bolt) schematic by tubeswell, on Flickr
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Re: Anyone repurpose a SS combo cab for tube amp?

Post by mrmofo »

impressive!
There are still some that think the neck PU is moved to accommodate the extra frets which only proves they cannot detect the difference in length of each.

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by StrummersOfThunder »

Yep that's the story!
Shit that thing looks like an apartment block!

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by Cdog »

tubeswell wrote:Shorwah did. Meet my 1973 Bassman25

ImageFront view by tubeswell, on Flickr

ImageBack view by tubeswell, on Flickr

ImageChassis finished by tubeswell, on Flickr

ImageChassis front by tubeswell, on Flickr
Great Scott! Better than new 8)

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by tubeswell »

'nother SS-to-tube amp conversion project in the wings - stay tuned for the reveal :mental:
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Re: Anyone repurpose a SS combo cab for tube amp?

Post by olegmcnoleg »

I think this is practical. I have a Marshall valvestate combo that now houses a cool vintage Princeton circuit. It fits easily, though I needed to do a bit of regluing of the cab where it had begun to separate: old combo boxes take a battering.

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by tubeswell »

Got another one on the go at the moment. Used to be a Behringer Thundershitbird until last week.
Attachments
Schematic.jpg
Partly built gutshot.jpg
Behringer Thunderbird to tube amp conversion in progress.jpg
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Re: Anyone repurpose a SS combo cab for tube amp?

Post by Cdog »

Looking good! What is that, a champ?

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Re: Anyone repurpose a SS combo cab for tube amp?

Post by tubeswell »

'Low-power' tweed princeton circuit (~3W - using a 6K6) with bias-vary trem
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