[HBR] overloading the HBR

[William Wood]

Hey Bill
   Don’t let that wattage discourage you fella : )
We live in a society that spends more per pet
a day, then you’ll use in power : )  Not only that OM
I will need a little extra heat in the HamShack…

   Brian, anything we can do to encourage you to
continue your pursuit be it HBR or other, run with
one or the other.  Gotta tell ya fella, been saving
parts for that Paraset too, and that’s next on my
list.
73 fer now
Bill  KE9XQ



On Feb 17, 2015, at 12:36 PM, Bill Cromwell <wrcromwell at gmail.com> wrote:

> Hi Bill,
> 
> Yeah, Brian said he was going to build one for himself. I even sent him some of the parts. To be fair Brian paid me generously for them but it's disappointing to hear from him that he is having doubts - may not build one after all. He also was asking before that about building a regen to use on the air. In spite of assurances from regular users of regens he was put off by the weak points of regens and decided not to build one. I hope he is not getting cold feet this time. Brian?
> 
> I suspect that we can spend ten thousand dollars (or more) on a radio and would take a short time to discover it's weaknesses. I have a Kenwood R-599 with which I do much of my on-air business - including things like Field Day and the occasional sprint. It's an early effort at an all solid state receiver (1970-ish) and it's main weakness is it's ease of overloading. Sound familiar? When I have it connected to a full size antenna I have 20 dB of attenuation cranked in and I can hear the weak signals *BETTER* than with the attenuation out. Sometimes it's 40 db! The attenuator is not required at all when I am using a short bit of wire in place of a real antenna and I still hear a lot of signals!
> 
> I would encourage anybody to build either a regen or something like the HBR and as a matter of fact an SDR. SDR's are the new version of hot rod radios and guess what. They have warts, too. I have most (maybe all) of the parts here to build one of the HBR models but in the meantime I have started being put off by all those vacuum tubes. Just the heater power for a radio like that is more then my entire station consumes when I use the Kenwood with a solid state TX. To me that is the most serious flaw. I know from experience what to do about overloads. Even with that insurmountable flaw I continue a slow march toward having my own HBR.
> 
> In the end, you have to pick one and go for it. When that's done, pick another and go for it. Otherwise none of it will ever get done. Just go ahead and build. Then start using whatever you have built. You'll get a much better idea of what you want to build next and you'll know why. Best of luck to all the builders here.
> 
> 73,
> 
> Bill  KU8H
> 
> 
> On 02/17/2015 11:54 AM, William Wood wrote:
>> Hey Brian, I thought you were going to build one yourself???  : )
>> Weren’t you saving the parts for one???  Anyways, I think the
>> strong local can give you problems, according to the book that
>> can be a problem.  But you can have several work arounds for this
>> one of course cuts down on your sensitivity.  There are other ways
>> to work around that problem too, T notch filter and such.
>> 1.  Attenuate
>> 2.  Less Regen
>> 3.  filters
>> I’m sure there are others, like ‘not' except-able quiet times : )
>> Usually from what I hear, when there is a will, there is a way…
>> 
>> I’m now on chapter three of THE Book : ), and this has been
>> addressed.  There are a couple of other ways to deal with strong
>> locals, but I won’t go into that right now : )  Nah, just kidding, but
>> most of the time gentlemen’s  agreements can come into play.
>> Most hams don’t live in their shack, so they have to shut down
>> once in a while : )
>> 
>> Back to that filter, it looks as tho it will help overcome your local
>> interference,  I do know I don’t plan on taking mine out for field
>> day activities.  I took an older rig out for field day once maybe a
>> dozen or more years ago, for the fun of it, and found out rather
>> quickly that it was useless : )
>> 
>> 73 fer now
>> Bill  KE9XQ
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