QUESTION ON DIY TUBE AMP
Dear all (especially KK & Modi sir),In case my transformer voltage output low if use bridge rectifier (full wave), if i use voltage double (2 diode & 2 cap) to increase the voltage suppy to the tube, it will be a halfwave, does this bring bring a lot negative effect to the sound quality?
ss 唔好意思，唔係好明！ :( Sorry modi sir my pc can't type chinese word...
my question is there any sound different if i usethe below method to obtain 100V for B+?
1) step down transformer (to 100V) after to through bridge rectifier
2) step down transformer =50v, but i use 2 diode& 2 cap to build a voltage doubler which will increase the voltage to >100V (but it will be a halfwave) Half bridge, may be 50Hz fundmental freq. Lower redidation and harmonic affect to audio but you need a better filte cap to filter the unwanted ripple.
Post your circuit, I use TINA to help you simulate the result and resulatant Capacitor value.
TINA is a tools which developed by TEXAS INSTRUMENT. Thank you KK sir,
This is the diagram.
my tansformer is AC 36V only, if use bridge can give only ~50V.
But use voltage double cn give 99Vdc then i can reduce it to 56vor 60v with zener diode...
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