开云体育

Nope,? you? got it? ass backwards.? Measure? the plate? block? cap? current if u don't? believe me.? W8JI, W8ZR, and John? Lyles? also? concur. At? 29? mhz,? the anode? to? chassis?

Not even close at 2.25" wide by 3" tall.. Ive vever used them above 160 anyway and that was in an Omega match of a shunt fed big 4 el 10/15/20 yagis top loaded 100' tower in the mid 80's. Resonant

Jim, Why should the circulating RF current you calculated, depending on Xc of the YC-156, flow through the plate blocking cap? In the 29MHz case most anode capacity will be within the tube and

Those style? caps? are? way? too? big in diam,? like? 4-5" !? ? They? end? up? adding too? much? stray? C.? ?Been? there,? done? that. HT-57? in 200? pf is rated at? ?15A?

The 57/857 are toy sizes, the 859's are for the big boys Carl

I would prefer a single capacitor any time. 73 Peter

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

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

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