small valves and RE: OT

[Tony Duell]

> I also have a Phillips/Mullard and Eimac manuals.  I should have used 
> numbers more common there.  I see both here so it's no big deal. For 

Don't worry about it. I have a small equivalents book to hand, I have 
several valve databooks, and the manual for my valve tester (an AVO Mk 4 
characteristic meter...). The US numbers are no problem for me. But the 
Philips numbers do give rahter more information without having to look 
them up.

> 
> >Sure. My warning, again, was based on the fact that you're likely to get 
> >inside the set (but as I said, I am sure you realised the dangers anyhow).
> 
> The dangers are less here with 117V nominal mains.  However I've been 

Sure.... I'd still not want to be connected across it, though.

> at this racket for over 35 years.  It's usually me telling others to 
> be careful and lockout/tagout.

Please don't think I was questioning your knowledge and experience. If 
you feel I was, then I apologise now. You have considerably more 
knowledge and experienmce than me.

You doubtless realised from that valve line-up that it was likely to be a 
live chassis. And you have the advantage of being able to see the set and 
notice there is no mains transformer [1].

However, there are plenty of other people reading this list, who might 
come across similar sets. I would hope they might now realise that the 
chassis could be live.

[1] The presence of a mains transformer in a valve radio does not imply an
isolated chassis!. It was not unhead-of for the transformer to be to
supply the heaters only, with the HT coming by half-wave rectifying the 
mains, thus giving a live chassis. Some UK sets even had the heaters in 
series, runn from the mains via an autotransformer... 

-tony