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Old 26th May 2005, 05:39 PM   #11
cowanrg is offline cowanrg  United States
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of course 800va is overkill

the idea behind it was that i couldnt find a readily available xformer in the voltage i needed in a smaller size. and i WAS planning on doing full dual mono (two xformers), but at the cost plitron and others wanted to charge for two, i could get the 800va for less money. so, i just went that route. plus, it adds a good amount of weight to the chassis making it feel more substantial.
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Old 26th May 2005, 05:41 PM   #12
cowanrg is offline cowanrg  United States
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another thing regarding the light bulb,

does wattage matter? if there IS a short, will it blow, or will it just get really bright? i just want to know, if i HAVE a problem, do i have to worry about having another one
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Old 26th May 2005, 05:54 PM   #13
steenoe is offline steenoe  Denmark
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RS Components has 2x55v toroids as of the shelf item. Maybe thats available in the states too? Here is the danish site:

RS toroids

You should be able to interpret the VA ratings and the voltages.
They have sales places in the states too.

Steen
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Old 26th May 2005, 05:57 PM   #14
cowanrg is offline cowanrg  United States
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i got the 800va for like $65. and i didnt have to track anything down. no phone calls, no emails, etc... i just clicked order, and it was there in a couple of days and it looks cool for a preamp.
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Old 26th May 2005, 06:11 PM   #15
steenoe is offline steenoe  Denmark
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Quote:
and it looks cool for a preamp.
Agree, weight does matter The 160VA I am using cost ca. 45usd.
Check the diodes with your meter, if it has diode test? Might be that.

Steen
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Old 26th May 2005, 06:13 PM   #16
fcel is offline fcel  United States
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Yes, connect the light bulb in seies with the hot wire. I would say 50W to 100W bulb should do. If there is a short somewhere, the bulb will light up very brightly but won't blow out the bulb.
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Old 26th May 2005, 06:49 PM   #17
cowanrg is offline cowanrg  United States
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yeah, ive got a diode tester in my meter.

steenoe,

exactly. i just wanted some weight to the thing is all. and for $65, it wasnt much more than a much smaller xformer, and cheaper than dual ones!

edit:

i have some MUR860's or whatever those nice diodes are, could i use those instead of the 1N4005's?
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Old 26th May 2005, 07:00 PM   #18
steenoe is offline steenoe  Denmark
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Quote:
could i use those instead of the 1N4005's?
Yep, you can. I am considering these Schottky's for the X-CCS-BosoZ I am gonna build: https://www.onsemi.com/pub/Collateral/MBR3100-D.PDF
Schottky's should be fairly noisefree No snubbers needed

Steen
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Old 26th May 2005, 07:43 PM   #19
cowanrg is offline cowanrg  United States
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cool. ill have to see if i have enough of those to use for both boards... i think there are like 8 per board. not sure if i have that many.

now if i could just go home...
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Old 26th May 2005, 07:52 PM   #20
steenoe is offline steenoe  Denmark
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not sure if i have that many.
YGM

Steen
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