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Old 10-13-2016, 09:57 AM
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bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
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I finished up inside the HV box including a new HV anode lead. Making good progress underneath the chassis now.


This one is much dirtier and crustier than the other. The wiring insulation is rather brittle so I'm having to be more careful. There is also a difference in component type, placement and tube wiring. For example, this 0.01uF cap was a conventional looking paper cap in the other set. I'm pretty sure this is also a paper cap housed in a mica looking package.

The biggest headache so far is the vertical oscillator. The 6SN7 dual triode wiring is flip-flopped from what's shown in the schematic and the circuit is a little different

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Last edited by bandersen; 10-13-2016 at 11:43 AM.
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