hello i have 2pc 225VA transformers in my F5. and a bias of about 1.72A(cviller's dual output's) and the transformer(only one ch yet) is nice and cool. about 32C.
anyone have an idè of how much i can crank the bias with those transformers? heatsinks is also nice and cool. maybe 37-38C ambient is about 22-23C.
rigth now bias is 1.72A. DC ofsett -0.4mV- +0.4mV
anyone have an idè of how much i can crank the bias with those transformers? heatsinks is also nice and cool. maybe 37-38C ambient is about 22-23C.
rigth now bias is 1.72A. DC ofsett -0.4mV- +0.4mV
225 VA is not much to go on as it is the voltagge time current
so what voltagge is it?
If it is split secondary at 18 and 18 V 225 divided by 36 = 6.25 A total
Or you can take max 3.125 A out of each secondary
Papa reccomend a 3 to 1 margin so in respect to that you are already taking out enough.
rest is again realy meaningless as what size heath sink?
and ofset again got nought to do with it as it all down on how carefull you are when tweaking the pots.
If you go Papa class you need bigher trafoss
so what voltagge is it?
If it is split secondary at 18 and 18 V 225 divided by 36 = 6.25 A total
Or you can take max 3.125 A out of each secondary
Papa reccomend a 3 to 1 margin so in respect to that you are already taking out enough.
rest is again realy meaningless as what size heath sink?
and ofset again got nought to do with it as it all down on how carefull you are when tweaking the pots.
If you go Papa class you need bigher trafoss
nice build, can't wait to start mine anyway which one is better configuration, CCCC R CC or CC R CCCC ? but it's for my aleph30 with 2pcs talema 2x18V 225VA and 12pcs 15.000uF, so each channel will be supplied by 90.000uF which already exceeds aleph30 design which is 60.000uF per channel
nice build, can't wait to start mine anyway which one is better configuration, CCCC R CC or CC R CCCC ? but it's for my aleph30 with 2pcs talema 2x18V 225VA and 12pcs 15.000uF, so each channel will be supplied by 90.000uF which already exceeds aleph30 design which is 60.000uF per channel
i also have some aleph30 boards
have to build them soon
Which is not a lot.
A stock F5 needs 30mF per channel rail.
You may have to double this i you double the current.
Let's see.
it's not double current. more like 30% rise.
ripple is 3.59A eatch cap.
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