[Heathkit] DX-40 Questions

[rbethman]

The DX-60 manual specifically states to tune the grid to NO MORE THAN 
2.5mA or damage to the final will result.

It would appear that "they learned from the past".

I know in tuning according to this, I have NEVER taken out the single 6146!

Bob - N0DGB

On 11/3/2010 1:17 PM, Curt wrote:
> Yes, 4 ma is a bit too much for the 6146.   I peaked mine too just as the
> manual says after my DX-40 arrived and destroyed a 6146 after running it
> that way for awhile.  It had been too long since owning a rig with a 6146 in
> it.  About 2ma would be fine, 3 ma would be maximum.  Just back off on the
> drive to 2 ma and all will be fine, doesn't need to be peaked.
>
> Antique Electronic Supply sells the 6DE7 for $3.80.  I've had good luck with
> tubes from them.
>
> Who cares what the rig looks like, the op on the other end of the QSO will
> never see it unless you send a picture.  You'll have as much fun as with the
> first girlfriend too.
>
> 73&  GL, Curt KB5JO