[Boatanchors] 813 grid to filament short

[W2HX]

> I wish AM operators would quit expressing power in therms of PEP, a slopbucket term that came about in the 1960s when manufacturers of cheap crappy lightweight sweep tube gear etc. designed for slopbucket, were seeking to bamboozle appliance operators into thinking they had QRO gear ("Up to 2 KW PEP Input!!")  Now, the modern day plastic radio operator pisses and moans about how _heavy_ his dinky table top leenyar is.

>The halfway measurable signal component is the carrier--carrier power tells AM operators all they need to know.

I am far from knowledgable on this subject, but I seem to recall that the FCC's power limits may be specified in PEP (maybe that is only for SSB?) In which case, I would want to know my PEP. Not to know how big my signal was or wasn't, but to compare my emission limits to the regulations. Just my 2c (now worth 1c due to inflation)

73


-----Original Message-----
From: boatanchors-bounces at mailman.qth.net [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of Rob Atkinson
Sent: Thursday, October 01, 2015 10:17 AM
To: Paul Baldock
Cc: Boat Anchors List
Subject: Re: [Boatanchors] 813 grid to filament short

Even though some tube are specified for horizontal operation I avoid it with the exception of the small tubes like 6146 and receiving tubes.

Large tubes with long grid, cathode, heater leads have to be mounted just so, and run within specs, and so on.

I'd reorient the chassis so they are vertical if possible and run them and see what happens.


> It runs  400W of
> carrier and 1500W PEP.
>

I wish AM operators would quit expressing power in therms of PEP, a slopbucket term that came about in the 1960s when manufacturers of cheap crappy lightweight sweep tube gear etc. designed for slopbucket, were seeking to bamboozle appliance operators into thinking they had QRO gear ("Up to 2 KW PEP Input!!")  Now, the modern day plastic radio operator pisses and moans about how _heavy_ his dinky table top leenyar is.

The halfway measurable signal component is the carrier--carrier power tells AM operators all they need to know.

73

Rob
K5UJ
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