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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!)
By pentalab <jim.thomson@...> · #185 ·
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...
By pentalab <jim.thomson@...> · #184 ·
Re: How to Getter a 3CX-3000A7 / 6000 / 10,000 , etc !
By R L Measures · #183 ·
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
By PA3DUV <pa3duv@...> · #182 ·
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
By pentalab <jim.thomson@...> · #180 ·
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
By pentalab <jim.thomson@...> · #179 ·
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
By PA3DUV <pa3duv@...> · #181 ·
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
By pentalab <jim.thomson@...> · #178 ·
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.
By Frank Goenninger <frgo@...> · #177 ·
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
By Frank Goenninger <frgo@...> · #176 ·
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
By pentalab <jim.thomson@...> · #175 ·
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 >
By pentalab <jim.thomson@...> · #174 ·
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
By pentalab <jim.thomson@...> · #173 ·
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
By PA3DUV <pa3duv@...> · #172 ·
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@...
By R L Measures · #171 ·
Re: HIGH SWR / HIGH REFLECTED POWER SHUT DOWN CIRCUIT !!
R L Measures wrote: <snip> A small fold up Engine Lift can solve that and many other heavy lifting jobs. One of these helped me lift my mill and lathe when I brought them home and I have a 164 lb
By Tony King - W4ZT <w4zt-060920@...> · #170 ·
Re: HIGH SWR / HIGH REFLECTED POWER SHUT DOWN CIRCUIT !!
Dick, You can buy a 1-2 ton chain fall hoist from harbor Freight for about $40.00. One can mount this in the ceiling stationary by the hook, and pull a pick up truck under it allowing the lift (if the
By craxd <craxd1@...> · #169 ·
Re: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
Mike, I bought a bunch of these SHV connectors and bulkheads from Powell, a Kings stockist/distributor. rmilligan@... , Ryan Milligan from Powell was kind enough to send a handul of these
By PA3DUV <pa3duv@...> · #168 ·
Re: HIGH SWR / HIGH REFLECTED POWER SHUT DOWN CIRCUIT !!
I just put an M24 2 metric tonne lifting eye on a 1ft studbolt through the steel reinforced concrete ceiling of my garage to get the 30 kVA 1500 rpm diesel genset and HT power supply on and off the
By PA3DUV <pa3duv@...> · #166 ·
Fw: Jumbo sized lytic stack for HV supplies ! Oil cap warning. DIODES
Let me correct this: Jim said: This is my "external cap box". I used Millen Red/ Black HV connector's on it. IF using the Millen's.... either use nylon mounting screws or mount em on Micarta. Both
By Mike Sawyer <w3slk@...> · #167 ·