Hello!
I’m new member to the forum, but I’ve been reading your posts for months. I didn’t sign in earlier just because I was not ready to undertake any new projects. My background doesn’t have anything to do with EE, so here and there I might be asking some very simple questions.
My first DIY project was Zen revisited with 3A bias some years ago ... actually I made 2 pairs, run them balanced, and they are still working without any problems. Since here in Croatia none of my friends have a slightest idea about electronics, I was pretty much on my own (except for very kind and prompt e-mails from N. Pass, of course!). It’s really great to be here with you all and to have an opportunity to share ideas and ask questions!
Recently I made Zen variation 2, and I must say that it is much livelier than my balanced original Zen. Now I want to build Z4, but I’m not sure about something so here I’m asking for your kind suggestions.
I have two 30-30 300 VA transformers which are now in my Z2, and I would like to use them in Z4 power supply. The problem is that these produce ca 41 - 42 V unregulated, so using them for regulated PS would be a complete waste of power.
My question is: can I simply use the unregulated supply with original Z4 schematics or should I use constant current source to bias ZVP3310 (or IRF 9610, whichever I choose to put in) ???
What do you think will work better?
Thanx for replies!
Boris Bjedov
I’m new member to the forum, but I’ve been reading your posts for months. I didn’t sign in earlier just because I was not ready to undertake any new projects. My background doesn’t have anything to do with EE, so here and there I might be asking some very simple questions.
My first DIY project was Zen revisited with 3A bias some years ago ... actually I made 2 pairs, run them balanced, and they are still working without any problems. Since here in Croatia none of my friends have a slightest idea about electronics, I was pretty much on my own (except for very kind and prompt e-mails from N. Pass, of course!). It’s really great to be here with you all and to have an opportunity to share ideas and ask questions!
Recently I made Zen variation 2, and I must say that it is much livelier than my balanced original Zen. Now I want to build Z4, but I’m not sure about something so here I’m asking for your kind suggestions.
I have two 30-30 300 VA transformers which are now in my Z2, and I would like to use them in Z4 power supply. The problem is that these produce ca 41 - 42 V unregulated, so using them for regulated PS would be a complete waste of power.
My question is: can I simply use the unregulated supply with original Z4 schematics or should I use constant current source to bias ZVP3310 (or IRF 9610, whichever I choose to put in) ???
What do you think will work better?Thanx for replies!
Boris Bjedov
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