hi,
i need a balanced input stage, like this:
is this possible?
thanks
sonix
i need a balanced input stage, like this:
An externally hosted image should be here but it was not working when we last tested it.
, for a 300b se amp like this:An externally hosted image should be here but it was not working when we last tested it.
. is this possible?
thanks
sonix
Re: Why not use an input transformer....
Somehow, one of those migrated to the input of my amp, too.
jam said:That's our Steve.............
Somehow, one of those migrated to the input of my amp, too.
WTF, that first schematic has an unbalanced input...but no way to balance the signal when using it... omgHUH?? Anyways, yes an input transformer will work. You can build a differential amp to balun the signal before feeding the power amp. You could redesign it to be balanced all up to the output tube.
Tim
Tim
sonix said:thanks for all answers!! can anyone do a redesign of the second circuit? PLZ !! I'm a beginner on this field
Not a problem. Just put the transformer between the input jack and the attenuator like this (note the new value of the attenuator):
Attachments
jam said:
...what transformer are you using and have you tried to use a transformer as a phase inverter to bridge an amplifier.
Regards,
Jam
JT11-P1 and yes. I posted a schematic of my input stage a few months back. I'm quite happy with the result.
picture:
An externally hosted image should be here but it was not working when we last tested it.
SY said:Hey, Steve, what are you doing up this early?
Simple. I went to bed earlier than usual.
se
IRONMAN...
Hi,
Jam,
You want iron? Lots of it?
Don't even think about asking for the price of any of those unless you happen to be the owner of a certain Swedish furniture company....
AUDIOTEKNE
Cheers,
Where are da tubes?
Hi,
Jam,
You want iron? Lots of it?
Don't even think about asking for the price of any of those unless you happen to be the owner of a certain Swedish furniture company....
AUDIOTEKNE
Cheers,
Where are da tubes?
Attachments
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Amplifiers
- Tubes / Valves
- balanced input stage