[R-390] R390

[Ba.Williams]

The operators manual mentions a recommended time limit for using the standby function.

I've heard something about coils years and years ago. Don't remember why it was said to not so that.

A former member, Nolan Lee, left his on 24/7 and kept testing tubes along the way.


The other other Barry


On Apr 26, 2012, at 7:05 PM, "chacuff" <chacuff at cableone.net> wrote:

> I've heard of all of those except the one about letting it sit on one set of 
> coils.  Still trying to figure that one out and how it might be a bad thing.
> 
> You will find that everyone does it differently...some leave them on 24/7 
> (which they were designed to cope with) and some turn them on and off.
> 
> Probably the only thing I can think of that is a no no is do not leave the 
> radio on and in the "STANDBY" position.  Our line voltage is high enough 
> these days to add a bit of stress but unloading the power supply pushes some 
> of the components beyond their voltage limits.  I think the best thing you 
> can do with the radio is use it often.
> 
> There is a case for thermal cycling being harmful to electronic gear and 
> just leaving it on 24/7 might be better for it...but really it's personal 
> preference.
> 
> Cecil
> K5DL
> ----- Original Message ----- 
> From: "Mike Jones" <dustoff4 at sbcglobal.net>
> To: <r-390 at mailman.qth.net>
> Sent: Thursday, April 26, 2012 5:09 PM
> Subject: [R-390] R390
> 
> 
> Thought I'd throw an email out for a question. I'm new to the Collins line, 
> I do own several boat anchors, and wonder what is considered the best way to 
> run an R390? I have heard, leave it on 24/7, ovens off, don't let it sit on 
> one set of coils, frequency, when I'm not listening to it, shut it 
> off........etc. What kinds of experience have any of you had that works?
> 
> Thanks in advance!
> Mike
> KD0KCM
> 
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