[Icom] info on the ic-728

Sat, 4 May 2002 16:30:05 -0400

adam if you come acroos a used at-160 let me know,new there pricey but i may
not have a choice.i haven't seen any lately.adam off hand would you know the
finals in the pa unit?in the early to late 90's the 2sc2879 was in most
kenwood and yaesu rig's. the icom did not utilize toshiba....im 99% sure.

tony k2vi
----- Original Message -----
From: "Adam Farson" <[email protected]>
To: <[email protected]>
Sent: Friday, May 03, 2002 10:47 PM
Subject: RE: [Icom] info on the ic-728

> Hi Tony,
>
> Excellent little radio. I have owned one, and also a rare IC-729 (an
IC-728 +
> 6m). The heatsink is huge; it is the top portion of the chassis, and
covers the
> whole area (width X depth) of the case.
>
> For you, the price was definitely right! The IC-728 is worth $450 to $550
on the
> used market.
>
> Look out for the companion AT-160 autotuner; you may be able to pick one
up for
> $100 to $150.
>
> Best 73,
> Adam, VA7OJ/AB4OJ
> North Vancouver, BC, Canada
> http://www.qsl.net/ab4oj/
> Note new e-mail address:
> mailto:[email protected]
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]On
> Behalf Of anthony costa
> Sent: Friday, May 03, 2002 15:07
> To: [email protected]
> Subject: Re: [Icom] info on the ic-728
>
>
> adam thank you so much.the display is not that bright but it's on my night
> table and sometimes i fall asleep with it on.well it wakes me up due to
the
> brightness.it lights up like my old yaesu 840 nothing is wrong but sure
> would like to dim it or cut it out.also adam this little radio sure is
> heavy.it seems they have a huge heat sink.a very well made radio.what is
> your opinion of this radio adam.you helped me on many occasions and i do
> appreciate it.
>
> tony k2vi
> ----- Original Message -----
> From: "Adam Farson" <[email protected]>
> To: <[email protected]>
> Sent: Friday, May 03, 2002 2:34 PM
> Subject: RE: [Icom] info on the ic-728
>
>
> > Tony,
> >
> > There is a regulator circuit (Q1 and Q2) on the Front Unit board, which
> supplies
> > 11V regulated to the dial lamps. If Q1 or Q2 fails (collector-base
short),
> the
> > raw 13.8V rail will be fed to the lamps. This will account for the
> excessive
> > brightness.
> >
> > You may wish to trouble-shoot the regulator. If you wish, I can scan
that
> part
> > of the schematic and board layout, and e-mail it to you.
> >
> > Best 73,
> > Adam, VA7OJ/AB4OJ
> > North Vancouver, BC, Canada
> > http://www.qsl.net/ab4oj/
> > Note new e-mail address:
> > mailto:[email protected]
>
> ----
> Your Moderator: Dick Flanagan W6OLD, [email protected]
> Icom FAQ: http://www.qsl.net/icom/
>