A number of hams market "homemade" sockets for the GS35B. It's easy to see
how the anode and filament stem receive cooling with these sockets. Could
you describe or point to a web page that shows a direct chassis mount that
has adequate cooling for both the anode and filament area?
I've seen at least one web page showing the GS35B mounted directly on the
chassis but I don't see how it's cooled.
Pat
wa4tuk
> -----Original Message-----
> From: amps-bounces@contesting.com
> [mailto:amps-bounces@contesting.com] On Behalf Of KD7QAE
> Sent: Tuesday, April 25, 2006 10:04 PM
> To: craxd1@verizon.net
> Cc: amps@contesting.com
> Subject: Re: [Amps] New Elecraft Amps
>
> All,
>
> A GS35b needs NO sockets! Also no fragile glass to break!, 1
> Tube, microwave oven transformer, some caps and coils, a TR
> relay from Russia and a meter or two and you are on the air
> at full power for cheap. Add a plywood box to make it official!
>
> Tomm
> _________________________________________
> Will Matney wrote:
>
> >Eddy,
> >
> >I'm hoping to start a grid driven, 4 tube with 813's. The
> price you can pick the tubes up, even if new Chinese, and the
> other parts pretty cheap compared to others. I seen where you
> could by a set of 4 new 7 pin sockets for about $10-$12. The
> transformer and chassis would most likely be the cost in the project.
> >
> >Best,
> >
> >Will
> >
> >*********** REPLY SEPARATOR ***********
> >
> >On 4/25/06 at 4:13 PM Ed Swynar wrote:
> >
> >
> >
> >>HA...!!!
> >>
> >>...And to think that my compadres said that I was MAD for
> homebrewing
> >>a linear around a pair of surplus 813's...!
> >>
> >>I feel both vindicated and exonerated...looks like the
> price of being
> >>an appliance operator has risen dramatically, Hi Hi...
> >>
> >>~73~ Eddy VE3CUI - VE3XZ
> >>
> >>"...Homebrewer by choice, not circumstance..."
> >>
> >>
> >>
> >>----- Original Message -----
> >>From: "Jim Kearman" <jkearman@att.net>
> >>To: "Amps" <amps@contesting.com>
> >>Sent: Tuesday, April 25, 2006 1:23 PM
> >>Subject: [Amps] New Elecraft Amps
> >>
> >>
> >>
> >>
> >>>A friend forwarded this info, which appeared on the Elecraft and
> >>>Ten-Tec
> >>>
> >>>
> >>lists. Get ready for "sticker shock."
> >>
> >>
> >>>>We officially previewed the amplifiers this weekend in
> our booth at
> >>>>the
> >>>>
> >>>>
> >>Visalia DX convention and prior to that we were not able to
> answer all
> >>of the emails we were being flooded with. (I just got back
> into the
> >>office
> >>today.)
> >>
> >>
> >>>>We previewed working units of the KPA800 (800W) and
> KPA1500 (1500W+)
> >>>>
> >>>>
> >>solid state amplifiers at the show. We are now going
> through the FCC
> >>certification process for these amps (basically to show that they
> >>can't be used as CB amplifiers). We can not take orders
> until after
> >>we receive the final certification, which usually takes
> 90-120 days.
> >>
> >>
> >>>>The KPA 800 is a single box amplifier with an internal custom
> >>>>designed
> >>>>
> >>>>
> >>60V switching power supply. It weighs approximately 36 lbs.
> Dimensions
> >>are 16.5"w x 15.5"d x 7"h.
> >>
> >>
> >>>>The KPA1500 uses two enclosures. The main desktop RF deck is the
> >>>>same
> >>>>
> >>>>
> >>size as the KPA800. The power supply enclosure is approximately 4"
> >>high and is the same depth and width as the main unit. It can sit
> >>under the main enclosure or under your operating table.
> The KPA1500
> >>easily makes 1500W+ on 160M - 10M. We also plan for it to cover 6M
> >>with lower power.
> >>(Approximately 400W). The main RF box weighs about 40 lbs and the
> >>power supply box about 15 lbs.
> >>
> >>
> >>>>Here is a short list of additional features:
> >>>>
> >>>>*Full Break-In Silent Diode T/R* *Microprocessor
> Controlled* *Auto
> >>>>Band
> >>>>
> >>>>
> >>Switching* (RF Sensing) Very fast.. *Built In Auto-Tuner*.
> Matches 3:1
> >>at 1500W *SO2R ready.* Two Rig Inputs / Two Antenna Outputs
> (2nd rig
> >>routes to alternate antenna) *RS-232 Port* for remote control and
> >>firmware downloadable updates. *Key-In / Key-Out
> sequencing* for older
> >>rigs *Custom Designed Switching Power Supply (RF Quiet)*
> >>
> >>
> >>>>The assembled version of the KPA1500 should sell for
> about $5,900;
> >>>>The
> >>>>
> >>>>
> >>KPA800 about $3,900. The kit versions for these should be around
> >>$300-500 less. (These are not final prices and may vary several
> >>hundred dollars.) We will pre-assemble the 60V switching power
> >>supplies and the internal RF transistor cards on the kits. (Don't
> >>worry - there is still plenty for you to build. :-)
> >>
> >>
> >>>>We expect to be able to take orders later this summer and plan to
> >>>>ship
> >>>>
> >>>>
> >>production before the Pacificon hamfest in mid-October.
> >>
> >>
> >>>>73, Eric WA6HHQ
> >>>>
> >>>>
> >>>73,
> >>>
> >>>Jim, KR1S
> >>>http://kr1s.kearman.com/
> >>>_______________________________________________
> >>>Amps mailing list
> >>>Amps@contesting.com
> >>>http://lists.contesting.com/mailman/listinfo/amps
> >>>
> >>>
> >>_______________________________________________
> >>Amps mailing list
> >>Amps@contesting.com
> >>http://lists.contesting.com/mailman/listinfo/amps
> >>
> >>
> >
> >
> >
> >_______________________________________________
> >Amps mailing list
> >Amps@contesting.com
> >http://lists.contesting.com/mailman/listinfo/amps
> >
> >
> >
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|