[TenTec] TenTec Digest, Vol 173, Issue 13

Fri May 12 12:47:05 EDT 2017

Robert-

Thanks for info on HP supplies.  I actually have one and have used it to
power the Herc 2.
I was able to trim the voltage up to 12.3 at the edge connector. The best
this
gets me at the collectors is 11.7V Also, on a 120V circuit, it trips at the
slightest
excursion over 75A. I can run at 450W CW all day with it. On phone, it
trips on voice peaks.
Yes, it is noisy! Especially when the fan gets up to full speed. As for RF
noise. Nothing that I
am able to hear above band noise.  I have not used it with a negative gain
antenna as I still
don't have a decent one and have yet to replace the noisy ST1S10 regulator
inside the Eagle.
Also, I'm leaning more toward a remote RX antenna for 160-40. There is room
for an E-W beverage
at my mom's house which is about 12 miles from here.

Seeing as you work with these HP supplies, do you have any info re: the
edge connector
and what does what. I'm particularly interested to learn if there is a
sense input and the amount
of drop it can compensate for.

Rather than purchase a mating connector, I used four short #12
wires soldered to the circuit board with some "power pole" brand connectors
at the other end.
Wires were maybe four inches long and parallel to the plane of the board.

73, -Bob ah7i/w4

-------------------KR7O wrote------------------

Message: 4Date: Fri, 12 May 2017 05:52:37 -0700
From: "KR7O" <kr7o at vhfdx.com>
To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
Subject: Re: [TenTec] Power supply for Hercules II
Message-ID: <005e01d2cb1e$a33591a0$e9a0b4e0$@com>
Content-Type: text/plain;       charset="us-ascii"

These surplus power supplies are becoming popular at least with the VHF guys
to drive the current SSPA 1KW pallet amps out there.  They are reportedly
reasonably RF quiet, but I suspect some external suppression will be
required and there will be variation from unit to unit.  They can be
modified to be floating so they can be combined series/parallel.  I
purchased four last fall for under $100 shipped, but haven't had time to
power them up yet.  I know a couple people that are happily using them.

Hopefully this link is acceptable,
http://www.ebay.com/sch/sis.html?_nkw=Lot+of+4+HP+ProLiant+DL580+DL785+G5+DP
S-1200FB+A+1200W+Power+Supply+438202-001&_id=332015621210&&_trksid=p2057872.
m2749.l2658

The downsides, given my experience with HP blade servers, is they are going
to be audibly loud, especially on power up and you have to fabricate a power
connector (or by a premade adapter that costs as much as the power supply).

73, Robert KR7O

On Fri, May 12, 2017 at 4:00 PM, <tentec-request at contesting.com> wrote:

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> Today's Topics:
>
>    1. TenTec 9420 Hercules II power supply manual (Katz Ajamas)
>    2. Re: Orion (Ralph Matheny K8RYU)
>    3. Re: Orion (Ralph Matheny K8RYU)
>    4. Re: Power supply for Hercules II (KR7O)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 11 May 2017 17:23:20 +0000
> From: Katz Ajamas <ajamas.rn at gmail.com>
> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> Subject: [TenTec] TenTec 9420 Hercules II power supply manual
> Message-ID:
>         <CA+kZa5puNyz8wDgryhsZKtGMBwb9567VXT4t=Vde1ta=-QKuWw at mail.gmail.
> com>
> Content-Type: text/plain; charset=UTF-8
>
> Does anyone have an electronic copy of this manual. I can not find it at
> the TenTec web site. I'd like to examine with an eye toward rolling my own.
> I read somewhere that it is actually four separate 20A power supplies?
>
> --
> -do not look into LASER with remaining eye!
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 11 May 2017 14:38:39 -0400 (EDT)
> From: Ralph Matheny K8RYU <mathenyr at marietta.edu>
> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> Subject: Re: [TenTec] Orion
> Message-ID:
>         <1142381304.1482634.1494527919524.JavaMail.zimbra at marietta.edu>
> Content-Type: text/plain; charset=utf-8
>
> mail.marietta.edu. is email.
>
> Questions?
>
> de K8RYU
>
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 11 May 2017 14:42:51 -0400 (EDT)
> From: Ralph Matheny K8RYU <mathenyr at marietta.edu>
> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> Subject: Re: [TenTec] Orion
> Message-ID:
>         <1378618585.1485133.1494528171740.JavaMail.zimbra at marietta.edu>
> Content-Type: text/plain; charset=utf-8
>
> I'll want $950 at Dayton.
>
> have had several replies, but that has happened before when I offered the
> radio for sale.  Everybody afraid of the status of TenTec.
>
> The unit is a a nice radio.  I just have moved on from it but it has no
> issues that I know of.  When somebody seems committed to it I'll put
> it on air and try it a few days and make sure it is a "worker bee" as I
> don't want to sell anybody a dud.  Never been cheated by a ham and
> don't want to cheat anybody either!
>
>
> 73
>
> de K8RYU
>
>
>
> ------------------------------
>
> Message: 4
> Date: Fri, 12 May 2017 05:52:37 -0700
> From: "KR7O" <kr7o at vhfdx.com>
> To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
> Subject: Re: [TenTec] Power supply for Hercules II
> Message-ID: <005e01d2cb1e$a33591a0$e9a0b4e0$@com>
> Content-Type: text/plain;       charset="us-ascii"
>
> These surplus power supplies are becoming popular at least with the VHF
> guys
> to drive the current SSPA 1KW pallet amps out there.  They are reportedly
> reasonably RF quiet, but I suspect some external suppression will be
> required and there will be variation from unit to unit.  They can be
> modified to be floating so they can be combined series/parallel.  I
> purchased four last fall for under $100 shipped, but haven't had time to
> power them up yet.  I know a couple people that are happily using them.
>
> Hopefully this link is acceptable,
> http://www.ebay.com/sch/sis.html?_nkw=Lot+of+4+HP+
> ProLiant+DL580+DL785+G5+DP
> S-1200FB+A+1200W+Power+Supply+438202-001&_id=332015621210&&_
> trksid=p2057872.
> m2749.l2658
>
> The downsides, given my experience with HP blade servers, is they are going
> to be audibly loud, especially on power up and you have to fabricate a
> power
> connector (or by a premade adapter that costs as much as the power supply).
>
> 73, Robert KR7O
>
>
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
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>
> ------------------------------
>
> End of TenTec Digest, Vol 173, Issue 13
> ***************************************
>

-- 
-do not look into LASER with remaining eye!