| vdi_nenna |
Hi Everybody,
I have 2 @ 15+15 3.3 amp toroids. If you had these transformers, what Pass DIY project would you build?
Can either be Preamp or amp.
Your opinions are appreciated greatly.
Thanks,
Vince
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| joensd |
You could try a mini-aleph but definitely would have to lower the bias to no overheat the transformers.
Iīd only do it if you have 8Ohm speakers which are hyper-efficient.
Or you could switch all the secondaries from the trannies in series to get 60VAV and build a Bride of Zen.
Jens - still hasnīt finished a Pass project in a proper chassis but had a nice time reading the articles |
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| grataku |
You could sell them to me so I can finish the Aleph-based headphone amp. ;)
In the pass camp 3amps are too low even for a "FirstWatt" AX and 15V are too few for a BLS based preamp. |
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| vdi_nenna |
| $12 each + shipping and their yours. Never used. So Sad. :clown: |
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| Mark A. Gulbrandsen |
I used a 320VA 13+13 toroid in my Mini and it works out fine for running both channels. Heck, I use my Mini for my computer sound system! I don't think 15+15 is that far off not to be able to use them. Just be sure to have adaquate heatsinking for the output devices. The bias will be a bit higher but thats all the better.
Mark |
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| MikeW |
| What to build? What do you want or need? Do you have any diy pass amps or pre-amps?:smash: |
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| Dr. ODD |
Hi Vince
You could build a Pearl :smash:
Bernhard:) :) :) |
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| joensd |
| quote: | I used a 320VA 13+13 toroid in my Mini and it works out fine for running both channels. Heck, I use my Mini for my computer sound system! I don't think 15+15 is that far off not to be able to use them. Just be sure to have adaquate heatsinking for the output devices. The bias will be a bit higher but thats all the better.
Mark
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Arenīt his trannies something like (15V+15V)*3.3A=99VA.
The introduction of the mini-a from Grey had 18V rails and bias a bit over 2A I think.
Thatīd be around 72WDC which is a lot for a 99VA trannie.
A 15V/3.3A secondary will definitely sag down to something like 18VDC maximum.
Never researched how long the trannie would survive such a project but I personally would lower the bias or place some fans on the transformers. The hum from the transformer will probably be louder than the fans anyway.:hot:
Cheerio |
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| vdi_nenna |
Someone expressed interest in them, so I think I'm going to sell them.
I have the trannies for a mini-XA waiting.
Thanks for all your input!
Vince |
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