I have been poking around on Internet looking for a scholarly article or two on generating SSB using switching techniques for the RF generation. It appears that GaN MOSFETs are the promise for genera
I use 7 Altronic 200 kW loads. I visited the factory in Arkansas two years ago. Very nice stuff. We always put the flow switch/sensor in the outlet side of a system, where it returns to the pump or g
FYI Alpha did produce a water cooled tube amp back in 70' See https://www.alpharfsystems.com/?p=1387 There is probably a good reason they stopped.. W2CO ______________________________________________
I don't know what the "good reason" they stopped the 70V was except maybe for a shortage of tubes, but I owned and used a 70V for years and loved it. Never had a problem with it. Jim - K9DD -- Origin
Not sure why, I only started working there 39 years later.. Will ask though. W2CO Sent from my iPad _______________________________________________ Amps mailing list Amps@contesting.com http://lists.
Interesting. The 70V shown in the link is my S/N 156, sitting on the carpeted floor of my shack after I purged the water system. Still have it, and it sits in a pod on the operating desk. It can be s
FYI Alpha did produce a water cooled tube amp back in 70' See https://www.alpharfsystems.com/?p=1387 There is probably a good reason they stopped.. W2CO vapor phase cooled. Alpha stopped making the 7
For those who want it, it's "RELATIVELY" easy to convert an air cooled tube to a water cooled tube. Note, I emphasized "relatively" easy. Vapor phase cooling benefits from the proper amount of turbul
To the best of my knowledge, Eimac never mass-produced a vapor-cooled version of the 8877. The 70V uses a 3CV1500A7 and is electrically identical to the 3CX1000A7. The physical structure is nearly i
Good summary of the differences between DI and distilled water Jim. As for cooling a SS amp I'd just use plain old tap water. 73, Roger (K8RI) condensed back to water. Its pure water. AFAIK, distille
-- ORIGINAL MESSAGE --(may be snipped) REPLY: De-ionized water is NOT pure, it is merely free of ionized atoms or molecules. There may still be impurities which are not ionized such as organic molecu
The same applied in the old UK Fast Reactors, in which the fuel rods were cooled by direct contact with molten sodium metal. The Intermediate Heat Exchangers had molten sodium on one side and high-p
-- ORIGINAL MESSAGE --(may be snipped) REPLY: De-ionized water is NOT pure, it is merely free of ionized atoms or molecules. There may still be impurities which are not ionized such as organic molecu
I suspect the terms are being mixed up here as well. We use DI water for cleaning in many of the processes in the semiconductor process specifically because of it's aggressive nature - it's an excell
Distilled water is deionized - it is one of the ways deionized water is produced. All else being equal, deionized water can be cheaper to produce. It takes less energy to remove the ions from an aque
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Rain picks up any contaminants that are in the air that it falls through. It is neither de-ionized nor distilled. If I recall a Weather 101 lecture right
Distilled water is de ionized - it is one of the ways de ionized water is produced. All else being equal, deionized water can be cheaper to produce. It takes less energy to remove the ions from an a
I didn't say it was. At best, it is ion free. If it is distilled, then it contains water and anything else that was in the distilled solution that has a vapor pressure greater than water. Al AB2ZY De
Distilled water is highly corrosive. Brass hose fittings with DI flow 24 X 7 will reduce those shiny brass hose barbs to a dull redish brown color that can be crumbles between your thumb and forefing
Okay, folks, can we then perhaps reach some consensus, or recommendation about what exact liquid to use in watercooled electronics? It has to be water-based, because there is simply no other liquid t