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StompBoxZone • View topic - Garnett Banshee amp - rebuild in pictures

Garnett Banshee amp - rebuild in pictures

Garnett Banshee amp - rebuild in pictures

Postby Laurie » Sun Jun 05, 2016 11:26 am

I just found a very nice Garnet Banshee at an estate sale. Has blown speakers...

It has a pair of 8 inch drivers, and is nominally a bass amp, but everyone uses them for guitar. It is a single ended 6V6 amp, about 10 or 12 Watts.

Anyone have any opinions about 8 inch speakers?

I'm looking at things like the
- Jensen C8R
- Celestion Eight 15
- Jensen Mod 8-20

I'd also contemplate changing up to 10 inch if you have any thoughts on that...
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Re: Opinions on 8 inch speakers?

Postby Laurie » Sun Jun 05, 2016 5:20 pm

Just by chance... A friend had a pair of Rola ceramic 10" drivers from the late 1950's. They fit nicely, and once I get the electronics sorted I'll see how they sound :)
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Re: Opinions on 8 inch speakers?

Postby Mark123 » Mon Jun 06, 2016 7:58 am

Sounds great: 50s speakers in (i guess what is) a 60s amp!
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Re: Opinions on 8 inch speakers?

Postby Laurie » Mon Jun 06, 2016 9:29 am

Yep. It sounds great. But the power transformer is overheating.

I'm guessing that's why it was pulled apart and left in the corner. Fortunately, it is a standard rating so I can get a replacement.
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Re: Garnett Banshee amp (prev. "Opinions on 8 inch speakers?

Postby Laurie » Wed Jun 15, 2016 10:57 am

So this Banshee amp is something quite nice (http://www.garnetamps.com/banshee.htm).

Single-ended 6V6 output so it is about 10W. Really (really) simple circuit (http://elektrotanya.com/PREVIEWS/634632 ... .pdf_1.png)

The list of stuff to be done is:
- New speakers. Done. The new 1950's Rola speakers are great.
- New power transformer. On order (it's a Hammond 369JX for those interested) - the beauty is that the new transformer is multi-primary so will work in Australia when I go back.
- New caps. The caps are the originals so I'll do them as a matter of course. The original power cap is a multi-section can (see here https://www.cedist.com/products/C-EC40X3-525). I'll double-up some 20uF caps I have in the parts-bin. It won't look the same but it will work just fine.
- New power cord. The original cord is rubber (perished) and two conductor (no earth).

It looks like the tubes are original and they sound great.

I'll take some pics when I have it in pieces doing the repairs.

I'm going to all this trouble because:
a) It's a good little amp and deserves a new life.
b) It is uniquely Canadian (http://www.garnetamps.com/index.htm) so will make an excellent souvenir of my years here.
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Re: Garnett Banshee amp (prev. "Opinions on 8 inch speakers?

Postby The_Doc » Thu Jun 16, 2016 2:22 am

I'm really looking forward to this :thumbs:
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Re: Garnett Banshee amp (prev. "Opinions on 8 inch speakers?

Postby Dirk » Thu Jun 16, 2016 10:58 am

From that picture, I wouldn't have called it a bass amp per sé. :o It looks more like an 80's bedroom guitar amp.
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Re: Garnett Banshee amp (prev. "Opinions on 8 inch speakers?

Postby JacksGearDemos » Thu Jun 16, 2016 12:27 pm

Probably sounds great cranked for recording (ala Jimmy Page technique... small ass amps cranked)
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Re: Garnett Banshee amp (prev. "Opinions on 8 inch speakers?

Postby Laurie » Thu Jun 16, 2016 1:21 pm

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Re: Garnett Banshee amp (prev. "Opinions on 8 inch speakers?

Postby Laurie » Thu Jun 16, 2016 1:22 pm

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