I was aiming at 50mA version, seems like that's the one Mr. Ciuffoli used in his first 845 project: the 845 Single Ended Amplifier
I asked manufacturer about parameters list for 50mA version, but they're shut down for another two weeks due to summer break, so I guess I just have to wait...
I asked manufacturer about parameters list for 50mA version, but they're shut down for another two weeks due to summer break, so I guess I just have to wait...
It's not like I have a choice. As I stated in one of the posts above, I already bought an amp containing those tubes capacitor coupled and now I'm just trying to make it work as it supposed to .
My speakers are 90db so occasional a2 would be handy, and that's why I'm looking at 1:1 interstages.
I got 410V on plate, minus about 70-75V for cathode bias, minus 10-15V drop on IS gives me operating point around 325V and about 500Vp-p with 1:1 interstage. Do you think that's not enough to drive 845 properly or my math is wrong?
My speakers are 90db so occasional a2 would be handy, and that's why I'm looking at 1:1 interstages.
I got 410V on plate, minus about 70-75V for cathode bias, minus 10-15V drop on IS gives me operating point around 325V and about 500Vp-p with 1:1 interstage. Do you think that's not enough to drive 845 properly or my math is wrong?
oh, ok then go for it.
you can see if your theory is ok : Triode / Pentode Loadline Simulator v.1.0 (20161216 www.trioda.com) but 500vpp should be plenty
you can see if your theory is ok : Triode / Pentode Loadline Simulator v.1.0 (20161216 www.trioda.com) but 500vpp should be plenty
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