[Boatanchors] P&H LA-400 linear

howard holden holden7471 at msn.com
Thu Aug 15 00:50:29 EDT 2019


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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