Jump to content
Gibson Brands Forums
Sign in to follow this  
Andyroid

SoCal Schematic Error

Recommended Posts

I've just turned my spare BC30 into a 50w bass amp with fixed bias, as the BC30 and SoCal use the same power transformer I thought I'd cheat and use the SoCal schematic to derive the bias supply. As this is my first fixed bias amp I just blindly followed the schematic and subsequently turned a capacitor into a firecracker! I was just about to lean over it to measure the bias voltage so I'm lucky it didn't blind me! I'm just posting this here in the hope I may save others from trouble when they recap their SoCals or whatever.

 

Basically, the capacitors are the wrong way round in the schematic, the anode is placed at a lower potential than the cathode. I should have realised as I was building it, but as I said, this is my first fixed bias amp. The capacitors I'm talking about are C30 and C31.

 

12325322553_6d5b8b9fc5_o.jpg

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...