Why did 405 look so good?

[BusyBee]

With normal hearing, that is to be expected but, as I said, if you had prolonged exposure to it, as you would in your own home, I would expect the notch effect to kick in.

I do remember one set, a new Bush, that had a very loud whistle. The customer wrote to Bush about it and received a reply suggesting that they hang heavy curtains behind the set! The customer then complained to us and, after confirming our initial suspicions with the aid of a cardboard tube, we changed the LOPT, whereupon the level dropped to normal.

I wonder if Tracy's experience was based on a single set?

This is bringing things back to me quite a bit. It was a long while ago and I have no old TV's so no reference to check. The notch effect did kick in I think. It reminds me about times when the line frequency was off and needed re-setting. I remember easily hearing the difference and knowing something was out. As an aside - maybe it is possible to set the line hold by ear without looking at the screen?

The same too with the loud whistle. At the time I would not have known about LOPT's whistleing but transformer buzzing was common (and a whack would cure) so maybe (we are talking pre-teens here). I do remember such whistles could be intermittant (similar to transformers so I suspected electro mechanical). It is probably the case that under normal circumstances there was no real issue, but as sets of those times were generally less reliable (at least my experience), and I was younger, issues did have a greater impression on me (note my love of valves now from my awe of pretty light in the back of our radio producing hundreds of stations then [pre school age]).

Tracy