[AMRadio] : Apache audio Real good - Use of 6146's


russ dworakowski wb3fau at hotmail.com
Wed Apr 17 11:59:35 EDT 2002


I agree Pete,  and  no  reason why  you  can't  use 6146Bs.  Good  luck
finding  6146As  anyway.  Russ


>From: manualman at juno.com
>Reply-To: amradio at mailman.qth.net
>To: amradio at mailman.qth.net
>Subject: Re: [AMRadio] : Apache audio Real good - Use of 6146's
>Date: Mon, 15 Apr 2002 11:59:40 -0700
>
>1st Apache, bought in 1959, had 6146B's put in around 1972. There still
>in there and still working. 2nd Apache had 6146B's put in around 1988.
>There still in there and working. No parasitics but neutralization had be
>adjusted. Whenever any new finals are put in, the neutralization should
>be checked and adjusted if necessary.
>Pete
>
>On Mon, 15 Apr 2002 10:50:27 -0700 (PDT) Larry Knapp <kc8jx at yahoo.com>
>writes:
> > Gary - It's totally up to you whether you wish to use 6146B's in
> > place of
> > 6146A's.  I refer you to G Zook's recent article in Electric Radio.
> > It's
> > possible they do work in some early transmitters, but in others,
> > using 6146B's
> > in place of the original design for 6146 or 6146A's will cause
> > severe
> > parasitics and improper neutralization.  The 6146B's were designed
> > primarily
> > for SSB operation, not AM.  It's up to you.  I prefer the 6146 and
> > 6146A's in
> > my DX-100B, Valiant and Heathkit Marauder; all before 1963.
> >
> > 73, Larry KC8JX
> >
> > --- Gary Schafer <garyschafer at attbi.com> wrote:
> > > Yes you are right Larry. I can never remember that the DX-100 was
> > advertised
> > > 100 watts output and the Apache was advertised 150 watts INPUT.
> > You end up
> > with the same output on both. I first see the 6146B advertised in
> > QST around
> > 1963 or 64. I think the Apache appeared in 1959?
> > >
> > > As far as using 6146B's in place of the A's though there is really
> > no problem
> > > doing
> > > so.
> > >
> > > 73
> > > Gary  K4FMX
> >
> >
> > =====
> > May your days be full of sunshine and good thoughts fill your head.
> > From: Larry Knapp, KC8JX, St. Joseph, Mi  49085
> >   Best 73's
> >
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