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RE: Marantz 10B dim scope

162.84.187.167

In Reply to: RE: Marantz 10B dim scope posted by Michael Samra on October 12, 2007 at 20:45:54

Hi Mike
I'm about to throw this 10B on the floor and jump on it! I've got pos 314v and neg 283v @ 125v line which seems about right. I've checked and changed just for GP both 12AX7s and the 12AU7. The pos 140v at the other end of the pos 295v (through the 82k and 54k) is at pos 156v which again considering the 125v line seems about right. I've replaced the CRT twice with NOS Mullards just in case I caught I bad one and all 3 tubes look the same. The intensity and focus pots respond properly as does the dim position on the power switch but the scope is way too dim. In the on position it looks like it should in the dim position and in the dim position the trace is barely visible.

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