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#31

Posted: Wed Sep 14, 2011 8:34 am
by Nick
For some values of equivalent.

#32

Posted: Wed Sep 14, 2011 8:48 am
by Ali Tait
Work in the dac?

#33

Posted: Wed Sep 14, 2011 8:48 am
by Ali Tait
Work in the dac?

#34

Posted: Wed Sep 14, 2011 9:13 am
by Ali Tait
In stereo? :D

#35

Posted: Wed Sep 14, 2011 10:30 am
by Nick
Yes, heater current a bit higher, but we tried when the DAC was at Andrews.

#36

Posted: Wed Sep 14, 2011 10:51 am
by Ali Tait
Any impressions as to sound?

#37

Posted: Wed Sep 14, 2011 11:35 am
by JackOfAll
deleted

#38

Posted: Thu Sep 15, 2011 2:14 pm
by JackOfAll
deleted

#39

Posted: Thu Sep 15, 2011 4:04 pm
by JackOfAll
deleted

#40

Posted: Thu Sep 15, 2011 4:28 pm
by Nick
I just read the spec sheet that gave the figure to ambiant as 80C/W, that puts them at 80*75 + 25 = 85C. should be fine, but hotter than I would prefer, YMMV. At 1W them will be at 105W, again, should be still ok as max temp is 150C, But things in semiconductor land migrate at a rate depending on temperature.

#41

Posted: Thu Sep 15, 2011 4:37 pm
by pre65
On the 10m45s I screw the chip to (usually) the amp case and attach the set resistor and gridstopper resistor to the legs.

#42

Posted: Thu Sep 15, 2011 4:49 pm
by JackOfAll
deleted

#43

Posted: Thu Sep 15, 2011 4:51 pm
by JackOfAll
deleted

#44

Posted: Thu Sep 15, 2011 5:03 pm
by pre65
JackOfAll wrote:
pre65 wrote:On the 10m45s I screw the chip to (usually) the amp case and attach the set resistor and gridstopper resistor to the legs.
Insulated from the chassis, hopefully! ;)
Oh yes indeedy. :)

I did a bulk buy for the forum some age ago, when Mouser (or the other USA supplier, forget the name) were still supplying them to the UK.

#45

Posted: Thu Sep 15, 2011 5:16 pm
by JackOfAll
deleted