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Re: [Amps] 8877

To: Kim Elmore <>
Subject: Re: [Amps] 8877
From: AB2E Darrell <>
Date: Tue, 25 Jan 2022 03:59:36 +0000
List-post: <>
That's great Kim.
I sold my Henry 3K-Ultra back in 2016, and it had the same final.
Should maybe have kept it but it was a bear to move.
73 Darrell AB2E

From: Kim Elmore <>
Sent: Monday, January 24, 2022 10:55 PM
To: AB2E Darrell <>
Cc: <>
Subject: Re: [Amps] 8877

Fortunately I have a spare 3CX1200A7!

Kim N5OP

On Jan 24, 2022, at 9:48 PM, AB2E Darrell <> wrote:

Hi Kim,
Better sit down then LOL.
P17 of the Feb QST, the AL-1200 w/Eimac tube is $6000 !
Guard that tube!
73 Darrell AB2E

From: Amps <> on behalf of Kim Elmore 
Sent: Monday, January 24, 2022 10:40 PM
To: <>
Subject: Re: [Amps] 8877

Holy high voltage!!! $7k for an AL1500 with an 8877?! I have an AL1200 that I 
got cheap several years ago.

It needed some work and in the process I installed Ameritron’s QSK-5 PIN diode 
QSK switch. The AL1200 isn’t as easy to drive as the 1500, so I changed a 
primary tap, added more filter capacitors to the string and so  increased B+ to 
about 4 kV no-load. A few other changes followed but nothing crazy. It’s much 
easier to drive, now. Overall I guess I have less than $2k in it. But even that 
amp is now $6k!!

The last time I paid attention, the AL1200 was about $4k and the AL1500 was a 
bit less depending on the tube. But I haven’t been monitoring the pricing. When 
did they get so expensive?

Kim N5OP

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