29-12-2016, 11:01 AM
To clarify I was reluctant to dismantle but the evidence for an HT break was pretty clear. I even did ohms tests with all the knobs being used and not a flicker. The resistor that drops HT volts does show continuity to the anode but dead on HT connection. And no volts are on it. I tried the usual rapid switching and cleaning method but no joy.
Another thing I can now appreciate is the board shows some signs of age and slight discoloration. It's not pristine.
As to the knobs I will take it easy. I will need to ponder it but without the knobs it would be easier to ease the board clear. However maybe it can be done with knobs still on.
To be safe I jotted down the output transformer wires just in case one pops off as they are thin and brittle.
Definitely no disaster so far or any trauma but I'm seeking info first before just forcing knobs. However it's clear I had a few tactical rethinks.
I will see if I can ease the board clear without removing knobs. I labelled all screws and put into plastic bags. Thanks for the tips and suggestions.
Another thing I can now appreciate is the board shows some signs of age and slight discoloration. It's not pristine.
As to the knobs I will take it easy. I will need to ponder it but without the knobs it would be easier to ease the board clear. However maybe it can be done with knobs still on.
To be safe I jotted down the output transformer wires just in case one pops off as they are thin and brittle.
Definitely no disaster so far or any trauma but I'm seeking info first before just forcing knobs. However it's clear I had a few tactical rethinks.
I will see if I can ease the board clear without removing knobs. I labelled all screws and put into plastic bags. Thanks for the tips and suggestions.
