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Old 26th March 2012, 11:57 PM   #1
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Default F5 Transformer

I have a friend with an Antek AN 8225 transformer.
Would this be good to power an F5?
It is listed at 800VA
2 outputs
25V 16Amps
Thanks,
DB
P.S.
I found their info page... looks good to me but I'm no engineer.
Antek - AN-8225
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Old 27th March 2012, 01:00 AM   #2
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The voltage is high for the standard F5, but should work well for an F5 Turbo:

http://firstwatt.com/pdf/art_f5_turbo.pdf
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Old 27th March 2012, 01:04 AM   #3
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this is just fine if the J-fets is cascoded.
as in F5 with dual outputs, or F5 turbo.
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Old 27th March 2012, 01:09 AM   #4
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Quote:
Originally Posted by AudioSan View Post
this is just fine if the J-fets is cascoded.
as in F5 with dual outputs, or F5 turbo.
Even without cascoded j-fets. Risky, but Mr Pass says they will take close to 40 volts before breakdown....I am going to cascode mine however!

Russellc
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Old 27th March 2012, 01:24 AM   #5
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yes. it migth do but i'm not the one to recommend it
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Old 27th March 2012, 03:32 PM   #6
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Thanks, I think I'll order a new one... 18v.
DB
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Old 27th March 2012, 03:35 PM   #7
AndrewT is offline AndrewT  Scotland
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18+18Vac
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Old 27th March 2012, 04:49 PM   #8
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I found one this... seems about right to me. Is that enough current?
Thanks,
DB
Electrical Characteristics

Outputs2x Power300VA Output VoltageCurrent 18V8.3A
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Old 27th March 2012, 05:48 PM   #9
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I wuld go for the first one if you already have it
I have been runnung a 2 24 secondary on F5 since last August with no problem.

I will go for twin outputs and big bias if sinks let you

But is your personal choice so I would first find out what output volltagge you need and If you are going to be hapy with small ones you can send me the big traffos for disposall.
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Old 27th March 2012, 07:54 PM   #10
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Now I am completely confused. My Pass schematic calls for rail voltages of 23-25v and 8amps of continuous current with peak current up to 10amps. I thought that the tranny my friend has looked like just the ticket but some think it's too high voltage???
I do have a solution though. My friend is a pro guitar amp constructor... perhaps I will have him build the power supply.
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