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LEIGH, When was the last time you ever saw a NPO .01uf DISC CERAMIC ???? They don't exist, never did. They are typ Z5u, z5t etc. I have never seen RF current ratings for disc ceramics, rf current

Indeed they do. The current handling / rating is usually defined by the capacitor's Equivalent Series Resistance / ESR and its dielectric losses Dissipation Factor / loss tangent which is highly

Capacitors have current ratings too. Voltage is one parameter and the current rating is another. Lee, w0vt

<Slightly off topic, <I am using an old Heathkit antenna switch that has the control voltages riding on the coax. The <series DC blocking capacitor in the outside box has a piece chipped out of it.

Yep, they show up on the various hot rod forums I frequent and are right at the top of their game. The last shipment was a comple running low mileage Ford 460 and C6 still attached going into an early

The choke should be doing most of the work and the cap very little. My HB and Ameritron switches all use a generic Z5 single .01 1KV right up to 1200-1500W on HF for decades of heavy use without

Yeah. Lotta rev heads downunder.

<<A total of .01 is more than enough, maybe a blown .02 was already removed in the past>> Thanks Carl, It's a stock box and the schematic shows it as I've described. There aren't any dissipation specs

A total of .01 is more than enough, maybe a blown .02 was already removed in the past Carl

Find a local freight forewarder and get quots for ship and air. They combine multi items in one container for a lower cost. Ive shipped several amps as well as complete vintage V8 engines that way all

That’s useful to know, thanks. ?I have a stock of YU204s for the 4-1000 amp and 3CX3000s for that amp but could do with a spare Thomson TH376 or two if anyone knows where to source those?Dave

Curious, how much? Bob WE6C

<I need to ship a Drake L4B to a ham in VK6 land. The quotes I found from FedEx DHL etc are totally nuts. <thanks <John k9uwa ## Drake L4PS ( HV supply) weighs 45 lbs. Drake L4B RF deck weighs 30 lbs.

Econco is now re-building Svetlana tubes. In the past, every tube rebuilder on the planet has tried, (including econco)... and failed to re-build Svetlana tubes. Apparently, Econco removes the entire

<IMD is ridiculous...even at 1500W. <Screen voltage is well regulated so i am thinking IMD is from tube. 4CX1500B swap will be possible but very <expensive ... much more better amp is around and make

My friend VA3AQB. Alan, has one. ?He’s had his share of problems wit it. ?If you email him at his call. Yahoo.ca he can tell you much about it. ?I know he had issues. ?He fixed everything

Slightly off topic, I am using an old Heathkit antenna switch that has the control voltages riding on the coax. The series DC blocking capacitor in the outside box has a piece chipped out of it. Maybe

PS: I'd love the Commander but I already have one. :-) --

G'day John. USPS? Pack and Send? The latter uses the same courier companies but they have big accounts, so the prices are often vastly cheaper. I don't know why it costs so much to get stuff out of

To be honest with you guy... stay away from it. i Know 4 owner of LA-4000, 3 got home for major repair + modification. The last one i dont know i never spoke with the owner but i bet is power board