That's a different situation from charge transfer via direct contact with a conductor. rob k5uj _______________________________________________ Amps mailing list Amps@contesting.com http://lists.con
Even if you have a good reason, adding a tube or tubes to any amp seems to me to invite problems. 1. The PA anode Z changes possibly needing adjustments to the pi network, maybe coil taps moved and/o
You guys can get all of your questions answered by simply hitting the books with some reading time in a basic electronics text that covers matter and energy, such as old Navpers Basic Electronics rat
Clear out your bank account. Have you called them for a price? I did last year. They want IIRC, around $200 for each one. 73 Rob K5UJ _______________________________________________ Amps mailing list
I didn't know the analyzers had firmware that could be updated. I've been happily using mine was they came from MFJ. I got a second old one at a hamfest. I guess my only complaint is they eat up AA b
It would be wonderful if the Groths were for sale again. The best turns counters I've ever seen came off old broadcast phasors made by Gates and Harris. These are practically unobtainium now. Everyth
. etc. etc. Probably existing stock will Except that we're in this to have fun (mostly) and not make money (maybe a few of us are but most of us are not) and tubes are fun; and little delicate cerami
The max plate current isn't the issue. the 400 ma spec. is what it is and can be continuous. The issues for 100% continuous duty cycle transmission are plate dissipation (are you exceeding 500 watts?
Kindly provide the basis for this fear of RF exposure you have. I don't think he wants to touch the antenna with his skin. Tnx vy much 73 rob K5UJ _______________________________________________ Amps
That must have been the bulk capacitor purchase that Paul W9AC mentioned from Condenser Products in Florida. He mentioned it a month or two ago and the information should be in the List archive. http
KVA is same as KW. 2400 VA is 2400 watts. think of it as a ratio. Let's say you have a transformer spec'd at 2000 v. rms 500 ma continuous. That would be 1 KVA CCS or 1 KW. the KVA voltage figure doe
Thanks Ron FB. Thanks also for not answering that guy 2 days ago. 73 rob K5UJ _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman
I'll bet the only difference is what's printed on the glass. Therefore, what matters in the purchase decision is who is selling what, meaning the warranty details and price. Rob K5UJ ________________
I am the one who may have written about the Centurion caps previously. I have modified my Centurion by removing the stock caps and putting in HEC doorknobs. I kept the 40 and 80 m. arrangement and ke
Shoot, what you have described sounds like a damn fine piece of gear and way better than the "consumer ham" cheap stuff manufactured today. Too bad you don't have it still. It could probably sit ther
Unlike some amps, the Centurion cap dials at 10, indicate maximum capacitance; not maximum loading (in the case of the load cap). 73 Rob K5UJ _______________________________________________ Amps mail
It was a misunderstanding. To increase loading you back off from maximum so maxed out is not where you want to be, but I failed to realize you probably have not achieved peak output and maybe need mo
I'm okay with it. to me it makes sense. The knob adjusts the cap value and is logically consistent with all other controls. 73 Rob K5UJ _______________________________________________ Amps mailing li
bob if this amp had never been used, why did you replace the bleeders but not the filter caps? I would have done the exact opposite. I don't even know who made the PT-2500A. that model number is comp
4 H is a bit low; 8 would be better. Choke input filters are good for power supply loads that are fairly constant, i.e. modes like AM, FM, and RTTY. Take a look at the designs used in earlier amps li