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Hi Jim Are those HT57's the USA made ones or the Chinese ones. I notice that Ebay seems to flooded with fake HT57's or has High Energy moved their factory to China like everything else these days?

Thanks for the schematic. I'll keep it for future use just in case. Good job! 73, Bob W4JFA [email protected]> wrote:

Gentlemen; Interesting and helpful dialog.? Thank you.? Steve, I didn't go down the path you describe too much because i had the plug and play cable.? I will look at that again to understand your

On my yaesu? FT-1000MP-MKV,? ( FT-1000D)? the tx inibit lead is always grounded...... until a mini-din plug is inserted into the yaesu mini din jack....at which point the grnd is removed inside the

Yup.? Everything will still be available. The Pentalabs 3-500Z's have already been added.? ?The 572B's are next.? ?Then the rest of the Pentalabs entire tube line up, including 8877, 3CX-800A7,

Hi, FYI new email below: Philw9ixx@... 73, Phil W9IXX

The last page of the "Advanced Users' Manual" for the ARB-704 says this about Technical Assistance: "If you have any problem with this unit first check the appropriate section of this manual. If the

You narrowed it down. Good job. Maybe MFJ can give you some troubleshooting tips for the ARB-704. Please let us know what you find out. Bob W4JFA [email protected]> wrote:

Jim, I'm assuming he'll still have all of the power supply circuit boards/kits? Bob W4JFA [email protected]> wrote:

Hal Thanks for the input and suggestion.? I was trying to figure out a safe way to do some troubleshooting.? I say safe because I am a mechanical guy so I don't always understand the test results I

Dear Harrison, Perhaps using a DMM you might wish to verify the Amplifier Keying Jack on the '3000 is closing when you PTT. Perhaps you might rig up a dummy jumper with a switch to actually operate

It's still in a transitional phase as of today.? A lot of items are being shipped from OH to CT. A lot of new items will be added, including the entire Penta tube lineup, for both amateur and

I have an Ameritron 811H and a Dentron Clipperton L amplifier that I was driving with a Yaesu FTdx3000 through the Ameritron ARB-704 interface (only one in the circuit at a time) . I am using the plug

> > > > * 12 KW CCS ON 160-15M....USING THE 3CX-6000A7..... PART 16 > > > > > > Here all the various tank coil taps are completed. Adjustable SS spark gap > installed across the vac load cap. After

Here the plate block cap assy is installed. 5 x 200pf @ 15 kv rated doorknob caps are used to make up the assy. The 200 pf cap's were chosen since they are rated at 15 amps CCS of RF current on any

I'm not sure if my answer came through so... I hooked up the amp through a power meter then dummy load. Amp is fine. Thanks for the info guys. Bob W4JFA

I am sure every hospital has Scott's phone number on speed dial?? Wink Wink

Any of these bigger metal tube amplifiers can be used for: (A) ISM (B) educational (C) testing DL's. (D) CAP (E) MARS (F) plasma (G) sputtering (H) tube testing (I) deep tissue healing (J) diathermy

HERE THE FRONT PANEL IS DONE..AND PAINTED. THE 2 LOWER TURNS COUNTERS EACH DRIVE A 6:1 VERNIER...WHICH DRIVE THE C1+C2 PI TUNED INPUT CAPS. THAT MEANS 0-300 INCREMENTS TO GET FROM MESHED TO UNMESHED.

On the 374A, 10 meters is just the Load cap. Its fixed tune. So if you set the load cap to like 70 on the dial, You get instant 10, 15,20,40 and 80 with no tuning. I/we noticed the same thing on my 2x