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I used this trick on my two x 3-1000z amplifier. I cut and wound a flat coil and placed it as you suggested. Higher frequencies gained a ton of power. Before my C1 cap was always min. C

Email? Econco.? Only? difference is? the? high? mu-grid.? ?They also? may? well? take? your F1's in? trade for? some F7's. Jim? VE7RF

HEC? (high energy? corp) has? detailed? current? vs? freq? info). For? 10-10? YC-156? amps,? use? 4 x? HT-57's.? ?200 pf? are? the? go? to? standard.? ?The? 200? pf? HT-57?

Email Dr Alex. Log into his page at www.ur4ll.net He will look after you and get you the correct capacitor, at the most reasonable price. 73, Alek. VK6APK

RFpARTS used to sell a heavy duty Pi Style choke that was rated to at least 3 amps. It had 10 pie sections on it with gaps and it no resonances in the ham bands. I wonder why they stopped selling

Will Econco? rebuild a 3cx3000F1 into a 3cx3000F7. I have a few genuine F1's which I wish were F7's Anyone know if this is possible? Henry

Anyone suggest a plate blocking cap brand? The only capacitors that i can? get RF current data on is the HT57's. I was thinking of using a couple of? HT57 1000pf in parallel. Its really hard getting

A? 50 ohm? glitch? resistor...and a fast,? correctly? sized / rated HV? fuse? will? save? just? about? any fault. Note the? part? about correctly? sized? HV? fuse.? 1A? for? a

http://ham-radio.com/k6sti/coil.zip Above? is? the? zip? file.? ? Note, SS? ?has? been? removed? from? the? master? list. Shoulda left it on.? SS? is? so? bad,? it was? at the?

Latest? version? is? available...called coil 3.77 3.77? has? replaced 3.72 Jim? VE7RF

Elevate the? choke? above the? chassis,? and u? can? increase? the? B+? through? the? roof.? The? 4.5 kv rating is? cuz the bottom? transverse screw? is? extremely? close to chassis.

Im still laughing Dave. Some get a litle anal when it comes to hams pushing things a bit but we are not in the commercial or military world. Blowing a choke with that tube only hurts the choke. BTW

Some joke, Peter. ?One failure in nearly 20 years.? The HRC fuse has blown twice during that time - once when the top band antenna broke and once when a gamma matched beam flashed over. It’s not

It?s an expensive fuse, not more. To install it as an rf choke into a 3CX3K amp must be a joke. 73 Peter, DJ7WW _____ From: [email protected] [mailto:[email protected]] On Behalf Of

The choke is a lot more robust than you would think.? I've had a couple of them pop over the years but tracked that down to a resonance (AKA idiot builder error) each time.? Fix the resonance

This confirms your choke is the "fuse" in your amplifier. If you are ok with that Dave, then great. I have one in an AM plate modulated amplifier with a pair of 4-400s modulated by a pair of 304TLs.

“Ratings are guidelines” - yeah that what this guy at Essen Motor Show said this weekend (picture attached)? In my 3CX3000A7 amp I used a very similar choke (in fact it looks the same) bought

Yep, while the designer ran a full bore 2 hole AL-1500 with no problems the company went to a lower rating to minimize warranty issues. Note I also stressed the layout as many Hammy Hambone amp

The only issue that may occur is sourcing the valves for the Alpha. When last checked they were made of unobtanium rgdsJeff/9y4j? On Wed, Nov 27, 2019 at 9:24, Jim Strohm<jim.strohm@...> wrote:

The only issue with the Alpha 76, that may occur is the scarcity of valves rgdsJeff/9y4j On Wed, Nov 27, 2019 at 9:24, Jim Strohm<jim.strohm@...> wrote: Depends on what "cheaper" means.? Too