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Old 13th Sep 2018, 7:57 am   #31
Focus Diode
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Join Date: Jan 2006
Location: Borough of Gateshead, UK.
Posts: 1,420
Default Re: Stuck on a BRC 1400!

Several components changed with no improvement despite removed resistors showing they've changed value.

Bottom cramping persists yet frame lock is rock solid. Not a fault I've had before on a 1400 that hasn't been the valve. Just to be sure another PCL805 was tried. No improvement.

Still a few components to change however.

It's occurred to me the valve heaters appear rather too bright for my liking. The voltage selector, (deleted on later 1400s), appears to be at the 240V position. I'm now wondering if the BY126 heater supply rectifier I fitted could be faulty? Later I'll check voltages.

So much for the easy fix!

Have found a used 2M pot so this will go in with a 680K feed resistor in the width position later too.
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