An update on the 6146 tube

[Allen A Heibeck]

Jim,

This is indeed interesting info.
To which of the 6146s (A, B, whatever) would the 6883 most
closely equate?

Allen

On Fri, 9 Feb 2001 11:06:01 -0600 Jim Roik <jnroik at ESCAPE.CA> writes:
> Something to consider when you are using a Heath rig that has 12.6 V
> filament supply is making a small wiring change on the filaments so
> that you
> can use a 6883. This is a 6146 that operates with a filament of 12.6
> volts.
> Because people are not aware of that they are often less expensive
> than
> 6146s. I've gotten these at flea markets where they have been
> overlooked by
> others and have been very cheap.
>
> Jim
>
> > -----Original Message-----
> > From: Heathkit Owners and Collectors List
> > [mailto:HEATH at LISTSERV.TEMPE.GOV]On Behalf Of Bill Coleman
> > Sent: Friday, February 09, 2001 8:58 AM
> > To: HEATH at LISTSERV.TEMPE.GOV
> > Subject: Re: An update on the 6146 tube
> >
> >
> > On 2/8/01 9:53 PM, Larry Knapp at kc8jx at YAHOO.COM wrote:
> >
> > >The following is the development sequence:
> > >6146   Original Design
> > >6146W  Ruggedized version of the original
> > >6146A  Improved basic 6146
> > >6146B  Final improvement
> >
> > This is what I remembered. The W is more like the original or the
> A than
> > the B.
> >
> > >The 6146B "appears" to be designed specifically for SSB service.
> >  The 6146B's
> > >have a higher plate dissipation than do the 6146 or 6146A and
> > also there are
> > >filament current differences.  There are more differences between
> the
> > >6146/6146A and the 6146B and are illustrated the vacuum-tube data
> > >contained in
> > >the back of the ARRL Handbook.
> >
> > Most of these differences have to do with inter-electrode
> capacitance.
> >
> > >A tube substitution guide reveals that there are several
> commercial tubes
> > >that
> > >can replace the individual 6146 tubes.  This is not meant to be
> > >all-inclusive:
> > >
> > >6146, 6146A, 6146B  -   8298A, 8192A
> > >
> > >I am not sure if 8298's and 8192's come in B or W versions.
> >
> > I thought the 8000-series had 12V instead of 6V filaments.
> >
> >
> > Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
> > Quote: "Not within a thousand years will man ever fly!"
> >             -- Wilbur Wright, 1901
> >
> > Listserver Subscription:listserv at listserv.tempe.gov - "subscribe
> > heath 'name' 'call'"
> > Listserver Submissions: heath at listserv.tempe.gov
> > Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff
> heath"
>
> Listserver Subscription:listserv at listserv.tempe.gov - "subscribe
> heath 'name' 'call'"
> Listserver Submissions: heath at listserv.tempe.gov
> Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff
> heath"

Rev. Allen Heibeck,  KJ6XH               El Cajon, CA
         kj6xh at juno.com                       We use HeathKit Boatanchors
here!

                                        Check it out!
http://www.tbn.org

Listserver Subscription:listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
Listserver Submissions: heath at listserv.tempe.gov
Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"