Hello ! I have a problem !
I'm building the Zen V4 and today, I work on the transfo wire....
The probleme is:
-At the output of my transfo, I have 40 VAC at 60 Hz and I have "" 36 VDC "" at the output of my bridge ????
I suppose to have about 55VDC
I realy don't understand, the bridge is well instaled and I try many bridge and the result is the same !
Maby because I take the mesure without the capasitor but I don't think that this is normal....
Please, I need some help, I don't understand wath is appening now
I'm building the Zen V4 and today, I work on the transfo wire....
The probleme is:
-At the output of my transfo, I have 40 VAC at 60 Hz and I have "" 36 VDC "" at the output of my bridge ????
I suppose to have about 55VDC
I realy don't understand, the bridge is well instaled and I try many bridge and the result is the same !
Maby because I take the mesure without the capasitor but I don't think that this is normal....
Please, I need some help, I don't understand wath is appening now
Thank you ! All is OK !
But I have a little question ! It is normal that when I fuse the primarie of the transfo with a 1.5 Amp fuse, the fuse broke 1 time on 2 heaven if the transfo is connect only at the capacitor ??
On the shema of Nelson Pass, it is written, "slow blow" fuse, I don't know what this mean !
Thank you
But I have a little question ! It is normal that when I fuse the primarie of the transfo with a 1.5 Amp fuse, the fuse broke 1 time on 2 heaven if the transfo is connect only at the capacitor ??
On the shema of Nelson Pass, it is written, "slow blow" fuse, I don't know what this mean !
Thank you
Al ok in your part of the old!
Hi Arold19
The fuse blow with the surge of the charging of the capacitors...yes you need to use a slow blow fuse!
It a fuse that need more time to blow ant take a surge...usualy it have sand inside.
All you need is to go to your local component shop an ask politly
a slow blow 1,5 Amp fuse!
Cheers
Jorge
Hi Arold19
The fuse blow with the surge of the charging of the capacitors...yes you need to use a slow blow fuse!
It a fuse that need more time to blow ant take a surge...usualy it have sand inside.
All you need is to go to your local component shop an ask politly
a slow blow 1,5 Amp fuse!Cheers
Jorge
Pass DIY Addict
Joined 2000
Paid Member
Arold19: When I was building my first amp, I did the very same thing you did. I was very disappointed when the DC off the bridge was slightly lower than the voltage rating of the AC secondary. Then I hooked up my caps and everything was as expected! It saved me an embarassing call to the transformer manufacturer...
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.