Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

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ChopSauce
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Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by ChopSauce »

I do not need the many wiring option, so I am very interested in this one, provided it is good for a single ended amp "à la" Vox AC4... :?:

The datasheet - http://www.hammondmfg.com/pdf/EDB1750B.pdf - reads:

5k5 primary / 8 Ohms secondary
10 Watts / 70Hz - 10 kHz

That seems good to me, but maybe I am not aware of something else, which makes this transformer not so good for my purpose?
Stevem
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by Stevem »

It should work nicely and it's greater mass since it's rated for 10 watts will make for tighter and lower Bass response.
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ChopSauce
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by ChopSauce »

I love when people write what I expect to read ... :wink:

Thanks!
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didit
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by didit »

Good success with one, albeit with different power tubes and about 10 years ago. Confident it will work for your design pretty much just as Steve explained.

Best .. Ian
ChopSauce
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by ChopSauce »

Thank you too!

This 1750B looks much more the original AC4 OT (but turned 90 degrees, like a smaller footprint was needed), so I was puzzled that it does not seem to be used more often... :?
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xtian
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by xtian »

As an alternative, I just ordered this one:

https://www.tubesandmore.com/products/t ... ngle-ended

for a 12ax7/el84 project.
I build and repair tube amps. http://amps.monkeymatic.com
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didit
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by didit »

ChopSauce wrote: Mon Mar 29, 2021 4:26 pm I was puzzled that it does not seem to be used more often... :?
Imagine it's something to do with imagination, or lack thereof ..
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didit
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by didit »

xtian wrote: Mon Mar 29, 2021 4:46 pm As an alternative, I just ordered this one:

https://www.tubesandmore.com/products/t ... ngle-ended

for a 12ax7/el84 project.
Also looks well suited certainly ..
ChopSauce
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by ChopSauce »

xtian wrote: Mon Mar 29, 2021 4:46 pm As an alternative, I just ordered this one:

https://www.tubesandmore.com/products/t ... ngle-ended

for a 12ax7/el84 project.
I hate you... :mrgreen:
(maybe I'm just crying)

I don't even want to know how much (more) it will cost to have it shipped to me. Not to mention the customs...
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didit
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by didit »

What does the Hammond one cost over there?
ChopSauce
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by ChopSauce »

Around 43€. Yes I know, even if there's 20$ more for shipping from the US AES/tubesandmore.com remains cheaper but you got the idea.

Many guys in the US might be interested by xtian's suggestion, anyway.
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xtian
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by xtian »

ChopSauce wrote: Mon Mar 29, 2021 5:32 pm (maybe I'm just crying)
Desolée, mon ami.
I build and repair tube amps. http://amps.monkeymatic.com
thetragichero
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Re: Hammond 1750B (Vibro King reverb driver) as SE/EL84 OT?

Post by thetragichero »

xtian wrote: Mon Mar 29, 2021 4:46 pm As an alternative, I just ordered this one:

https://www.tubesandmore.com/products/t ... ngle-ended

for a 12ax7/el84 project.
i used one of these on my 6l6g vibro champ and it works great. amplified parts reverb shop has these with free shipping
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