Tube rectification for SS cicuit

Is there a reason to not use a tube rectifier in a solid state circuit?


It's not easy. Obviously the 'standard' tube rectifiers are not really suitable for currents in excess of 250-300mA which rules out power amps. For preamps/cdplayers/dacs vacuum tube rectifiers should be fine but would likely drop a lot of voltage. Unless regulation is involved this may be a problem. Mercury rectifiers, otoh, are readily suitable for preamp duties.

So, why haven't i tried it? I guess i still haven't found a SS circuit deserving of all this loving care. A tube powered DAC would certainly look deliciously perverse if you're into digital.
 
analog_sa said:
So, why haven't i tried it? I guess i still haven't found a SS circuit deserving of all this loving care. A tube powered DAC would certainly look deliciously perverse if you're into digital.

The circuit in question I was thinking about is for a NOS DAC. The current it draws is pretty small, certainly les than 100mA ... maybe I'll look into it?
 

Kenshin

Member
2005-01-09 9:51 am
China
Tube rectifiers...big, expensive, voltage loss up to tens of volts, low current, low efficiency, need heating, short life...

In high power solid-state circuits, the current is too small; in small signal ones, the voltage is too high.

And it's not like tube ampilfiers, which benefits the sound.

dsavitsk said:
I have seen lots of tube circuits with solid state rectifiers, but I have never seen the opposite. Is there a reason to not use a tube rectifier in a solid state circuit?