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Built in bias meters - switching?

B

bean_counter

Active Member
Several years ago, I picked up four big, gorgeous NOS Weston 0-100mA DC ammeters, complete with shunts. Have been saving them for a big project.

So, I'm building my big project, PP 300b monoblocks with individual fixed bias; AC on the filaments. What is best practice for switching these into the circuit? I was thinking a make-before-break rotary switch, between the hum pot and ground.

Thoughts?
 
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bean_counter said:
Several years ago, I picked up four big, gorgeous NOS Weston 0-100mA DC ammeters, complete with shunts. Have been saving them for a big project.

So, I'm building my big project, PP 300b monoblocks with individual fixed bias; AC on the filaments. What is best practice for switching these into the circuit? I was thinking a make-before-break rotary switch, between the hum pot and ground.

Thoughts?
Click to expand...

Your best options is to have the meters permanently connected.
 
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