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Re: [Amps] 8877

To: amps@contesting.com
Subject: Re: [Amps] 8877
From: Jim W7RY <jimw7ry@gmail.com>
Date: Mon, 24 Jan 2022 21:45:31 -0600
List-post: <mailto:amps@contesting.com>

On 1/24/2022 9:40 PM, Kim Elmore wrote:
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?


Since inflation is now 12%+ and the cost of labor is through the roof. Blame the appropriate political party in charge at the moment..

73, Jim W7RY



Kim N5OP





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