[Boatanchors] P&H LA-400 linear

[Bill Henderson]

Hi Ron....

I guess there aren't a lot of hamfests in Yellowknife (VE8) area...
but that would be one of the places I would check.

Don't rule out buying from within Canada  - still shipping costs but might
not be as much.

Also might want to checkout:

https://www.qsl.net/n6ev/4x807.gif

and

 https://www.qsl.net/n6ev/4x807_ps.gif

(the power supply)

http://www.w7ekb.com/glowbugs/projects/JunkerAmp.pdf

https://www.eham.net/ehamforum/smf/index.php?topic=78547.0;wap2

The Junker amp is my "go to" for such - relatively simple, straightforward,
worth a read at least.

73 de va3hwa / Bill H.





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08/15/19,
08:32:58 AM

On Thu, Aug 15, 2019 at 7:45 AM Ron VE8RT <ve8rt at yknwt.ca> wrote:

> GM Howard,
>
>    a problem with projects here is paying the S&H charges on many small
> orders to get them to Canada.  It would work out cheaper to see if I
> couldfind one repairable or intact boatanchor to use for parts or to
> repair and get the shipping over in one larger payment.  It recently
> came up when I was looking to buy something from RF parts and the
> minimum charge for S&H on international orders was $20.  So if I had to
> get a variety of bits from a few different places it starts to get
> expensive.
>
>     Ron VE8RT
>
> On Thu, 15 Aug 2019 04:50:29 +0000
> howard holden <holden7471 at msn.com> wrote:
>
> > Probably easier to build one than buy a 1625 (or 807) amp. For instance,
> > the Feb 1975 QST has one with 4 807s in an article titled "Transmitting
> > Variables". Socket/wiring changes to accommodate the 1625 a breeze.
> > Pretty easy to get that genre of tubes - 807, 1625, 6BG6 etc. -  going.
> >
> >
> > 73, Howie WB2AWQ
> >
> > On 8/14/2019 5:49 PM, Ron VE8RT wrote:
> > >    I'm giving some thought to having a linear amp available (I'm
> > > comfortable with low power most of the time).  In my collection of old
> > > tubes are a single 811, a pair of 813s, a 4CX250, some 6146s and
> > > variants, and a few 1625s.  It may not be the only amplifier, but I
> found
> > > that the P&H LA-400 (early models) used the 1625s.  How difficult would
> > > it be to find a 1625 based amplifier?
> > >
> > >        Ron VE8RT
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> --
> Ron VE8RT <ve8rt at yknwt.ca>
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