OK, after my previous threads, regarding a 12AX7 and 6v6GT...I threw the toys out of the cot and decided to go with something a little more tried and tested :
http://boozhoundlabs.com/howto/
Instead of using the 6SN7, I'll be using two NOS Brimar 6J5s, and triode-strapping the 6V6GTs.
Duncanamps PSU designer isn't playing ball on Linux at the moment, so here's asking for your help as I can't simulate anything.
How much would the GZ33 lose in such an environment? I've read up to 35V, and wondering if the previous 400-0-400 I specced to order with the 12ax7 design was indeed overkill or not given such a drop and rectification losses would render B+ takeoff at + - 250 (280 w/o 'the drop' from GZ33).
Smoothing will be carried out with a network of 7H and 16uF and 100uF tank caps
Cheers again,
L
http://boozhoundlabs.com/howto/
Instead of using the 6SN7, I'll be using two NOS Brimar 6J5s, and triode-strapping the 6V6GTs.
Duncanamps PSU designer isn't playing ball on Linux at the moment, so here's asking for your help as I can't simulate anything.
How much would the GZ33 lose in such an environment? I've read up to 35V, and wondering if the previous 400-0-400 I specced to order with the 12ax7 design was indeed overkill or not given such a drop and rectification losses would render B+ takeoff at + - 250 (280 w/o 'the drop' from GZ33).
Smoothing will be carried out with a network of 7H and 16uF and 100uF tank caps
Cheers again,
L
hey-Hey!!!,
I have found that with a choke-input PS that the GZ33 delivers B+ in between a GZ34 and 5V4GA. It is a bit higher resistance than a GZ34, though IIRC it can deliver more output current.
cheers,
Douglas
I have found that with a choke-input PS that the GZ33 delivers B+ in between a GZ34 and 5V4GA. It is a bit higher resistance than a GZ34, though IIRC it can deliver more output current.
cheers,
Douglas
They do - about 200mA + IIRC. I guess the only thing to do is actually load on the tubes (which'll take 280v no problem) and adjust resistance values accordingly.
So, taking 400vP-P rectified (RMS losses), leaves 280V DC. All's good!
L
So, taking 400vP-P rectified (RMS losses), leaves 280V DC. All's good!
L
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