[Heathkit] 1625 matched pair? (was 807 vs 1625 as DX-100B modulator)

[Carl]

Id look for a NIB pair of the same brand and that should be more than 
sufficient. I sure doubt Heath did any matching and may have even mixed 
brands.

The 811/572B uses a 4 pin socket.

Carl
KM1H


----- Original Message ----- 
From: "Rick Poole" <wa1rkt at arrl.net>
To: <heathkit at mailman.qth.net>
Sent: Sunday, November 20, 2011 8:42 AM
Subject: [Heathkit] 1625 matched pair? (was 807 vs 1625 as DX-100B 
modulator)


>
> Is there anything to be gained by using a matched pair of 1625
> modulator tubes rather than just pulling two off the shelf and putting 
> them in?
>
> Rick WA1RKT
>
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