Re: Silicone Rubber
ORIGINAL MESSAGE: wrote: ------------ REPLY FOLLOWS ------------ A good source of HV wire is West Marine. They have a 40 kv marine grade wire. They sell it by the foot so you buy only what you need.
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Bill Turner <dezrat@...>
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#190
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Re: How to Getter a 3CX-3000A7 / 6000 / 10,000 , etc !
ORIGINAL MESSAGE: wrote: ------------ REPLY FOLLOWS ------------ I don't think this is a defect. Many tubes show a fluorescence on the inside of the glass when operating. I was told it was "soft"
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Bill Turner <dezrat@...>
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#189
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Re: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
Am 24.09.2006 um 10:47 schrieb pentalab: ;-) It did help. All of them say "I'm the best". That's why I kept asking here. Tnx for sharing your experience! 73, Frank DG1SBG
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Frank Goenninger <frgo@...>
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#188
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Re: How to Getter a 3CX-3000A7 / 6000 / 10,000 , etc !
drive is applied? ... or when both are applied? ### getter's [per Eimac and Svetlana] are ALWAYS working... as long as the fil is lit. HV + drive are not part of the overall process. none of them
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pentalab <jim.thomson@...>
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#187
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Re: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
Yep, it does, I just tried it. On the crimp version one has to remove the outside plastic insulation in order to crimp it. Cheers, Dick PA3DUV
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PA3DUV <pa3duv@...>
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#186
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Re: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
### If that's the case... then it will also accept Teflon RG- 393 coax.... which is a bit smaller OD than 8-U/213-U [.390" OD for 393 coax.... vs .405" OD for 8-U /213-U Jim VE7RF a bit flimsy. Greg!)
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pentalab <jim.thomson@...>
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#185
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How to manage Filament Voltage on a 3000/6000/10,000A7 triode or tetrode
Gents After reading the material from Both Eimac and Svetlana... [extending tube life via proper fil v management] a few yrs back... I thought I would give it a try. At my former workshop location...
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pentalab <jim.thomson@...>
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#184
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Re: How to Getter a 3CX-3000A7 / 6000 / 10,000 , etc !
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R L Measures
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#183
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Re: Silicone Rubber
Jim, Between my remote 3 phase 400 VAC primary HT PSU (in the garage) and the RF deck in the shack I run 25 ft silicone insulated high voltage cable as used in the neon lighting industry. Around that
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PA3DUV <pa3duv@...>
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#182
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How to Getter a 3CX-3000A7 / 6000 / 10,000 , etc !
After all that discussion on the ...'other reflector' about gettering tubes, I thought I'd add my 2 cents worth. After reading about the detailled gettering info on Svetlana's website years ago... I
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pentalab <jim.thomson@...>
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#180
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Re: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
wrote: ### Probably either Alden or Kings or Rowe. All 3 x brands have good connectors rated at 25 kv and more. These red/black Millen's are just too mickey mouse. The Phenolic material will
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pentalab <jim.thomson@...>
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#179
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Re: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
Also the SHV will accept RG8U coax only. Actually the H+S SHV is the same type as the Kings HT connectors, a bit flimsy. I just browsed the http://www.lemo.com/index.jsp site. (Thanks Greg!) These
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PA3DUV <pa3duv@...>
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#181
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Silicone Rubber
I have been using Belden 10 KV test prod wire for the last several years.... comes in red/black. I use both red/black on everything......... vey flexible.... abot .21" diam.... silicone rubber. Many
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pentalab <jim.thomson@...>
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#178
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Re: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
Am 24.09.2006 um 09:52 schrieb pentalab: Which ones would these be? I have found Huber+Suhner (Switzerland) but their SHV type connector is rated at 3.5 kV rms / 5 kV DC only.
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Frank Goenninger <frgo@...>
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#177
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Re: More QRO secrets revealed.... 15 -20 kw baluns !! - Pictures, PLEASE
Am 24.09.2006 um 09:38 schrieb pentalab: Thanks, Jim! If you want me to post them in this group at yahoo please let me know! Meanwhile I was able to find a movie on WWW showing you in the shack with
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Frank Goenninger <frgo@...>
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#176
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Re: Fw: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
wrote: HV #### Try a google on kings or rowe. SSON has some.... so does Jerry Thompson at Economy electronics... in Loanoke Ark. He has a website too. ..think it's Economyelectronics.com The only
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pentalab <jim.thomson@...>
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#175
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Re: More QRO secrets revealed.... 15 -20 kw baluns !! - Pictures, PLEASE
wrote: you of ### I'm going to attempt to post some pix in the photo area.. IF I can figure it out. I'm no PC geek. Worse comes.... I'll e-mail some to u direct. Jim >
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pentalab <jim.thomson@...>
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#174
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Re: More QRO secrets revealed.... 15 -20 kw baluns !!
<pchristensen@...> wrote: geometries can oftentimes get in the way. In the alternative, I have successfully used a combination of #43 and #77 material on RG- 214. The #43 material is used on the ends
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pentalab <jim.thomson@...>
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#173
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Re: Fw: Jumbo sized lytic stack for HV supplies ! Oil
Greg, Thanks for info. Your statement on the Powerpoles for HT use is amazing. Did you test the small Powerpoles (30-45 amp) or the larger 75 amp models? One thing is very important though; for HT
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PA3DUV <pa3duv@...>
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#172
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Re: HIGH SWR / HIGH REFLECTED POWER SHUT DOWN CIRCUIT !!
I used a sledge hammer handle, a strap, a hook, helper-girl on one end of the handle, and me on the other end to lift it in place. R L MEASURES, AG6K. 805-386-3734 r@...
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R L Measures
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#171
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