Dual Rectifier loop help

[creative]

Hi
I bought used Dual Rectifier with serial mod and i want original parallel loop.
Two resistors are missing and if someone know what values are this two?

 

[serkan80]

The values of the resistors that will close the loop depends upon the other resistors in the network. Have you got a schematic of your specific circuit Secondly, you mentioned a serial mod. What mod are we talking about here and how much has it changed the original circuit? There are so many unanswered questions in this post. A bit more information would certainly enable other people to help you more effectively. Also, couldn't help but notice the broken edges off the PCB, has it been handled correctly earlier?

circuit board assembly

 

[Blaklynx]

The values of the resistors that will close the loop depends upon the other resistors in the network. Have you got a schematic of your specific circuit Secondly, you mentioned a serial mod. What mod are we talking about here and how much has it changed the original circuit? There are so many unanswered questions in this post. A bit more information would certainly enable other people to help you more effectively. Also, couldn't help but notice the broken edges off the PCB, has it been handled correctly earlier?

There's nothing wrong with the edge of the PCB. This is standard design and manufacturing process. The single PCB you see is part of an array of a much larger PCB sheet. This sheet may consist of 20 of these single PCB's. The the rough edge you see is the broken portion that joins the next single PCB, of which will have the same rough edge, too. This sheet is usually called a 'step and repeat' or 'array', ie. you repeat the single PCB multiple times to fit standard size PCB sheets of x,y dimension. Sheets come in different sizes and you use the one that suits your manufacturing needs.

Here is a link: http://www.pcbuniverse.com/articles/Mousebites.png

In the image of the link, there are two single PCB's either side of the 'tab'. Breaking the tab away will leave a rough edge on the single PCB's. This is what you see on the photo provided by the OP.


As for the resistors: They have nothing to do with the parallel to serial loop mod. Only wires are involved. There are some posts on this site that show which wires you need to play with. IMO, if it's serial, leave it as it is. It's better sound-wise for some of the effects you may put through the loop. The latest Recto amps from Mesa are serial, so that should be enough for you to understand the issues the parallel loop caused.