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Brown note 18 watt lite IIb - v4 overheating
Posted: Mon 10/09/23 11:08 pm
by constantineaudio
Hi all , I just finished the amp everything seems fine except the V4 Tube, I tried different tubes which brand new ones too, but overheating continues , I couldnt find the reason of this, do you have any advice. (Btw I am using diode rectifier two of 1N4007’s)
Thank you .
Re: Brown note 18 watt lite IIb - v4 overheating
Posted: Tue 10/10/23 1:42 am
by Bieworm
Could you post the voltages of this amp and some detailed pictures, i.e. the power supply and power amp?
Re: Brown note 18 watt lite IIb - v4 overheating
Posted: Tue 10/10/23 8:49 am
by JMPGuitars
As Bieworm said, we need to see your voltages.
Also, SS rectifier is typically done with 4 diodes, see here for example:
files/JMPGuitars_18_Watt_Tremolo_TMB_Schematic.pdf
I prefer UF4007 to 1N4007.
Thanks,
Josh