[minima] Re: Today = JBoT
- From: gurudatta panda <gurudattabam@xxxxxxxxx>
- To: minima@xxxxxxxxxxxxx
- Date: Sat, 1 Feb 2014 12:59:04 +0530
Dear sandeep,
Thanks for your info, Yes High Voltage is definitely a risk for new
Amateurs. And as per your early info, I think the 6146 is more robust for
high SWR. Anyway, I have been working in 25KV environment, 720 v may not be
more dangerous than that. Here we get 500 volt induction in our telecom
cable from 25KV line, myself got many shocks in morning QTH.
Will post with my experiments soon, I think there are many engineers and
Experienced HAMs who will definitely opt for tube.
Regards
On Sat, Feb 1, 2014 at 12:15 PM, pakdeDar <pakdedarmantaoye@xxxxxxxxx>wrote:
> And the final dimension - weight - dc power consumption - heat - etc I
> think should be carefully considered according to the spirit of " Minima
> "...
> What's your comment Farhan Sir ?
>
> Sudarmanta
> YC1DCN
>
> Kaspa-kaspaanlayauw ®
>
> -----Original Message-----
> From: farhanbox@xxxxxxxxx
> Sender: minima-bounce@xxxxxxxxxxxxx
> Date: Sat, 1 Feb 2014 05:56:34
> To: <minima@xxxxxxxxxxxxx>
> Reply-To: minima@xxxxxxxxxxxxx
> Subject: [minima] Re: Today = JBoT
>
> Tubes are interesting. I play with them all the time. But they need
> components apart from the tubes themselves that are very hard to source and
> ship.
> - f
> Sent from BlackBerry® on Airtel
>
> -----Original Message-----
> From: Sandeep Lohia <sandeeplohia12@xxxxxxxxx>
> Sender: minima-bounce@xxxxxxxxxxxxx
> Date: Sat, 1 Feb 2014 11:02:52
> To: <minima@xxxxxxxxxxxxx>
> Reply-To: minima@xxxxxxxxxxxxx
> Subject: [minima] Re: Today = JBoT
>
> Guru!
>
> We can run them on battery power too...
> I will forward U 'HOW TO' an innovate idea from Farhan, (in previous
> group discussion)...
> & I brought them after inspired by Farhan only :)
>
> Regards -Sandeep
>
> On 01/02/2014, gurudatta panda <gurudattabam@xxxxxxxxx> wrote:
> > If SWR and filtering is a problem, we may opt for Tube Amp, I will
> suggest
> > for a 6146 Tube, AA8V design. Only con is you can not run them on battery
> > power.
> > Regards
> > Gurudatta
> >
> >
> > On Sat, Feb 1, 2014 at 2:00 AM, Mark G0MGX <mark.g0mgx@xxxxxxxxx> wrote:
> >
> >> Hi Farhan
> >>
> >> That's exactly what I built from the link you sent to the group before
> >> before:
> >>
> >> http://www.hfsignals.org/index.php/File:Qrp-linear.png
> >>
> >> Mine is using 2N3053s (given free by GQRP club!)
> >>
> >> M
> >>
> >>
> >>
> >> On 31/01/2014 19:13, Ashhar Farhan wrote:
> >>
> >> this is what i have used. it works quite well. except that:
> >> 1. the 2N2219s that I used blow quite easily when operating under hihg
> >> SWR
> >> 2. the driver has inordinately high current.
> >> - f
> >>
> >>
> >> On Fri, Jan 31, 2014 at 11:54 PM, Mark G0MGX <mark.g0mgx@xxxxxxxxx>
> >> wrote:
> >>
> >>> Here's my musings on building the JBoT version Farhan suggested as the
> >>> linear for Minima:
> >>>
> >>> http://g0mgx.blogspot.co.uk/2014/01/jbot-linear-for-minima.html
> >>>
> >>> Mark
> >>> G0MGX
> >>>
> >>>
> >>
> >>
> >
> >
> > --
> > *Thanks & Regards*
> >
> > *Gurudatta Panda*
> > *Jr. Site Engineer*
> > *R.V.N.L. / KDJR*
> >
> > *Mob : +91 9777447844 (Work)*
> > * +91 9778238593 (Home)*
> >
>
>
> --
> --
> Please encourage recycling, reuse or repairing of E-waste.
> ░7░3░ ░d░e░ ░V░U░3░S░X░T░
>
>
--
*Thanks & Regards*
*Gurudatta Panda*
*Jr. Site Engineer*
*R.V.N.L. / KDJR*
*Mob : +91 9777447844 (Work)*
* +91 9778238593 (Home)*
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