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I've built many EHT supplies over decades but have always used capacitive only, ripple-filtering. Sitting below my desk for many years, is an inductor rated 7,500V, 0.85A CCS, 10 Henries. It came from

RFP will not sell 3-500Z tubes to overseas buyers but I bought 4 of them through their Ebay store, no problem. They will send them anywhere in the world. Go figure. 73, Alek VK6APK

There are Russian 4?H roller inductors.. They are available at Dr. Alex, UR4LL: <http://www.ur4ll.net/IMG_0676.JPG> 73 Peter, DJ7WW From: [email protected] <[email protected]> On Behalf

Thank you for this write up. 73, Dave, w6de Sent: 18 February, 2024 17:22 To: [email protected] Subject: Re: [ham-amplifiers] Ameritron Plate Chokes

##? No they don't.? I just recently bought 2 x of the ameritron chokes from? RF parts. ( 2-3 yrs ago).? ?ONLY on some selected items, ( and that choke is NOT one of em, as of 5 mins ago) will

Almost every plate choke I see in an ameritron that comes in for repair is not wound properly. I always ask if they had used on 17 meters when I see a fried one , answer is always yes. I tell everyone

Dunno mate. we're pretty much accustomed to paying double for everything in this part of the world, so we don't worry too much about it. Guess I'll hear from Tom when he fronts for work this week.

Alek, How much will it be for them to be shipped to you? Bob W4JFA [email protected]> wrote:

Merrit Arnold’s wife took over and lots changed. I send my customers to penta now have for months. If ever a tube issue replacement is quick. Nothing against rf parts , my customers get the whole

Thanks Robert. There are numerous reports that a batch of the chokes were burning up on 17m. Anyway, problem solved, I have emailed W8JI with a view of purchasing a few of his. 73, Alek VK6APK

Interesting I've installed the RFC3 in AL82, RFParts 3-500 with 1600w out into Navy surplus dummy load. Tested ALL bands including warc. Never noticed an issue. Solid. Same with Alpha 89 with RFC3

It is probably because of the paperwork blizzard to send something when customs are involved. It appears to be different for each country. I personally have only sent things to Canada and Australia.

Is it because you just can't see us from up there...?

Dave, I don't think it's an ITAR issue...... 73 Mike N2LYM

What are the issues with Ameritron Plate Chokes? I have used an RF Parts look alike for several amplifier projects. https://www.rfparts.com/rfc3.html More chokes here

Does anyone know if Ameritron have resolved the issues with their spare parts plate chokes? I would be interested in purchasing a couple if they are not going to burn up. 73, Alek VK6APK.

And they are using this 88uh loaded plate choke in the normal place... at the anode ?

This one: [drossel.jpg] 73 Peter -----Original-Nachricht----- Betreff: Re: [ham-amplifiers] Loaded Plate chokes...again Datum: 2024-02-16T16:34:06+0100 Von: "Jim VE7RF" <jim.thom@...> An:

Where is the? 88 uh...down at the bottom ?

The version on the posted photo has 88?H. It is also used in the 20kW R&S VK20 amp with RS1082CL at 8kV 5A ,1.5-30MHz, 24/7. 73 Peter -----Original-Nachricht----- Betreff: Re: [ham-amplifiers] Loaded