The Alpha 70V used a 3CV1500A7 (c. 1990) and worked very well.
Some info on that is in the manual:
https://www.alpharfsystems.com/wp-content/uploads/2016/05/70V_Manual.pdf
Some good images of the amp, inside and out, including close-ups of the cooling
tubing connection to the tube etc. can be found here:
https://www.google.com/search?safe=off&rlz=1C1GCEU_enUS901US901&sxsrf=ALeKk00Q2VBQ2AirnWhorc7Sy_RknC9tLw:1614270777508&source=univ&tbm=isch&q=alpha+70v+pictures&sa=X&ved=2ahUKEwiDxY6iu4XvAhW4HDQIHcl2DCIQ7Al6BAgEEBA&biw=1920&bih=1089#imgrc=sPrzcLglsbhLFM
If I were to homebrew something, I'd likely copy what they did. It was
compact, efficient and very quiet.
-----Original Message-----
From: Amps <amps-bounces@contesting.com> On Behalf Of Bob D.
Sent: Thursday, February 25, 2021 8:20 AM
To: amps@contesting.com
Subject: [Amps] Water cooling. Not dummy load.
Anyone using the water cooled version of 3cx1500A7.
3CW1750A7
How'd you do it?
73, -Bob ah7i
--
-do not look into LASER with remaining eye!
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