I let it go empty for two hours, the temperature reaches 55 degrees Celsius .... without a lid!
I will post more pictures with the amplifier when the other missing elements come, Obbligato 100uF / 400V oil bypass capacitor at 10K uF and McIntosh VU meter (P200).
I will post more pictures with the amplifier when the other missing elements come, Obbligato 100uF / 400V oil bypass capacitor at 10K uF and McIntosh VU meter (P200).
think of strategically placed fan, wherever you can put it
even one on back plate, for pumping cold air inside of box (so not on fins directly) should put you in safe zone
I was few times (eons ago) surprised how extra heavy chunk of htsnk is not working as expected, then I learned difference between free air and forced air heatsinks ....... so corrected my expectations, with mileage
but they look so impressive 🙂
even one on back plate, for pumping cold air inside of box (so not on fins directly) should put you in safe zone
I was few times (eons ago) surprised how extra heavy chunk of htsnk is not working as expected, then I learned difference between free air and forced air heatsinks ....... so corrected my expectations, with mileage
but they look so impressive 🙂
I like the balanced input transformer. Which model did you choose? That’s something I hope to incorporate one day.
as with everything, what you're going to do is result of several compromises
this amp is SE all the way from input to output
are you going to attach xformer in front of this amp, and use it as Bal to SE converter device, or you're going to convert from Bal to SE somewhere (else) upstream, that's your choice
it's possible to do the same in preamp itself, or - as you wrote - in between preamp and amp
now, if we look at amp (SB) and it's Rin, it is possible to use 10K nominally xformer - which is easier to drive with preamp, but in that case I would increase R1 to 1Meg and R5 to 330K, ref. to schm in post #4
if preamp is of sort with proper Cojones, then regular repeater xformer ( nominally 600R jobbie) could be used, then no changes in amp
this amp is SE all the way from input to output
are you going to attach xformer in front of this amp, and use it as Bal to SE converter device, or you're going to convert from Bal to SE somewhere (else) upstream, that's your choice
it's possible to do the same in preamp itself, or - as you wrote - in between preamp and amp
now, if we look at amp (SB) and it's Rin, it is possible to use 10K nominally xformer - which is easier to drive with preamp, but in that case I would increase R1 to 1Meg and R5 to 330K, ref. to schm in post #4
if preamp is of sort with proper Cojones, then regular repeater xformer ( nominally 600R jobbie) could be used, then no changes in amp
Fugly!!
now :
-more porn!
- how it sounds
-what's temperature ? have fan?
- how it sounds, compared to these toob amps aside?
-will it drive F4?
-is it expensive, comparing to these toob amps aside?
- Blame Pa, as always.
🙂
