Better tube at same price would be YU181,YC229 or 3CX1200Z7.
The YC229 has a bigger/better anode cooler than either the D7, Z7 or 181.
But....there is a grid ring to deal with...so that might be retrofit
> -----Original Message-----
> From: email@example.com [mailto:firstname.lastname@example.org]
> On Behalf Of Carl
> Sent: Friday, September 16, 2011 7:55 AM
> To: LB3HC; email@example.com
> Subject: Re: [Amps] 3CX1200D7 availability
> About $1200 if you can find one.
> ----- Original Message -----
> From: "LB3HC" <firstname.lastname@example.org>
> To: <email@example.com>
> Sent: Friday, September 16, 2011 8:00 AM
> Subject: [Amps] 3CX1200D7 availability
> >I have a secondhand Henry 3KD premier on hand that I consider
> > acquiring. The amp is the version with the Eimac 3CX1200D7 tube.
> > Questions: what is the availability of the Eimac 3CX1200D7 tube and
> > what would a typical price be for a replacement tube? What are your
> > impressions around this Henry amp? Any known problems, issues or hard
> > to source parts?
> > LB3HC
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