Hi John, I will give it a tweak
I received 5 volumes of the Newnes red books today, I have been reading through the 1870A info.
It also has the service info for the dreaded Murphy V150 that still lurks in the roundtuit pile
It is a real shame the CRT is low, I have had it running for 4 hours this evening.
It is as solid as a rock, no adjustments necessary!
Mark