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Hoffman Amps Forum image Author Topic: Is this Output Transformer Ok for Weber 6O100 Orange Build?  (Read 2525 times)

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Offline waldner

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Is this Output Transformer Ok for Weber 6O100 Orange Build?
« on: January 09, 2024, 04:31:31 pm »
I'm building the Weber 6O100 (Orange/Matamp) Kit and they are out of stock on the output transformer- the WOT100.  It looks like I could substitute the Mojotone British 900 Style OT but I wanted to make sure?  See specs for each attached.


The impedance on the Weber that normally comes with the kit is 1900 ohms.  The mojo's impedance is 1800 ohms.  Close enough?  The rest seems the same.

Offline kagliostro

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Re: Is this Output Transformer Ok for Weber 6O100 Orange Build?
« Reply #1 on: January 10, 2024, 03:26:41 am »
1800 or 1900 are really the same for an OT

The thing is to be looked at is the correct Power/Current rating of the winding

Franco
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Offline waldner

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Re: Is this Output Transformer Ok for Weber 6O100 Orange Build?
« Reply #2 on: January 10, 2024, 11:47:42 am »
Ok, thanks.  I don't see any more detailed info on the specs for either transformer other than they say they are both rated for 100 watts and both of the designs typically run 4xEL34 (or 4xKT77 or 4x6L6) tubes.   Not sure if that's enough to go on though?

Offline mresistor

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Re: Is this Output Transformer Ok for Weber 6O100 Orange Build?
« Reply #3 on: January 10, 2024, 12:11:57 pm »
I don't know what else you'd need to know  if the seller says it's rated for 100W and it has the right inputs and outputs and footprint then it should be what you are looking for .


Here is a Hammond  https://www.hawkusa.com/manufacturers/hammond-mfg/enclosures/1750x


https://www.hammfg.com/files/parts/pdf/1750X.pdf


That should be enough specifications to satisfy your curiosity. 
« Last Edit: January 10, 2024, 03:09:01 pm by mresistor »

Offline PRR

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Re: Is this Output Transformer Ok for Weber 6O100 Orange Build?
« Reply #4 on: January 10, 2024, 01:46:46 pm »
> The rest seems the same.

The color-coding seems to be designed to infuriate people who demand a Standard Color Code. Like everything different.

Offline AlNewman

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Re: Is this Output Transformer Ok for Weber 6O100 Orange Build?
« Reply #5 on: January 10, 2024, 05:49:22 pm »
'The color-coding seems to be designed to infuriate people who demand a Standard Color Code. Like everything different.'

That to me, all other things considered, would be enough reason to go for the Weber.

Offline PRR

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Re: Is this Output Transformer Ok for Weber 6O100 Orange Build?
« Reply #6 on: January 10, 2024, 06:29:08 pm »
I'm waiting for a Brit to tell us the Mojo follows a British Standard and the BS guys didn't read US/Can EIA color standards.

Offline mresistor

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Re: Is this Output Transformer Ok for Weber 6O100 Orange Build?
« Reply #7 on: January 11, 2024, 09:54:46 am »
Weber   probably made in PRC
Hammond made in Canada
the Mojo is most likely made in USA by Heyboer
Also notice the Hammond has a 1.7K primary winding


The Hammond 1750x is a laydown OT   the Hammond 1750U is a stand-up 100W variant.


https://www.hammfg.com/files/parts/pdf/1750U.pdf   and the 1750U is $123 at Hawk
« Last Edit: January 11, 2024, 10:49:02 am by mresistor »

 


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