Toyman_PA said:Thanks Guys.
I seem to be having trouble finding a 220uF/63V and the 100uF/25V caps as well as the 470Ohm/25W resistor.
Can this amp run without a pre-amp...
P.S. I'm a noob.
1) What's a good way to design a PS for this amp? I can't decide if I think a single supply for a pair of these on one chassis to make a stereo amp would be cooler than a separate PS for each, as in a pair of monoblocks. Regardless, I know I need 400v B+ per the schem, but what about generating enough current to power all 4 tubes? How do I calculate that?
2) For a circuit like this, how does one calculate the output in watts? I've always wondered that...
Thanks for the patience!
motherone said:...Could someone recommend a few different output transformers?...
I just found this thread on this project, and I'm going to build a stereo version of this amp.
My question is, can I use a Hammond 273BX for a stereo version of this amp? It's rated for 175ma not the 180ma...
porkchop61 said:...The 6N1P takes 600mA (I'm only using one)...
I'd rather just buy one PT if you know what I mean
porkchop61 said:Oops, I think the choke may be a problem as it's only rated for 150mA (Hammond 193D).
Anyone make a higher current choke in 8 Henries?
The 8H value isn't critical and you could go higher without any problem. Hammond has a 10 Henry 200mA choke (193J) and a 10 Henry 500mA choke (193Q) both of which would work fine and happen to be on sale at Angela (not associated with Angela except as a satisfied customer).
Alternatively you could go with a lower Henry value and add an LC section to the PS.