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400 different ones. cheers, Frank

Does anyone know of a source for the bandswitch for the Amp Supply LK- 500ZB? In mine one of the beryllium wipers caught in the gap at the counterclockwise end of switch rotation and was bent upon

400 SB220 that's quite a record or was it one repaired 400 times? R L Measures <r@...> wrote: 112% of Tune-C pk V across the tank L makes some sense, but we are talking about a different point

Example: In a series string of 4 electrolytic filter caps, with an open bleeder on one cap, the potential on the other 3 caps would slowly ble

112% of Tune-C pk V across the tank L makes some sense, but we are talking about a different point in the circuit.

the didn't have anything there to test at high power with at the time, if I remember the conversation correctly. Anyhow, they're safe for use now. ### what... no budget to test what u build ???

hey.... does anybody realize that Ameritron used RG-174-U from the output of the tuned inputs..... to the cathode ??? RG-174 is that tiny stranded coax... normally used to wire RX stuff, like xtal

dipmeters. His problem with oscilloscopes was when one measured the worst-case tank circuit potential in a SB-220 at 3600V instead of the >9000V he predicted. ### agreed. Per Tom... if u underloaded

### well I guess Oren Elliot is an idiot then... so is MFJ. If they had half a brain... they woulda known Delrin is a no-no. You can tell it's Delrin from 8' away.... that stuff has a distinct look

He did not tell me this via e-mail. He said dipmeters were worthless during a discussion of various means of grounding grids after a dipmeter measurement showed a result that contradicted his dicta

Jim, It's a wonder Tom didn't add a "by the way" saying, scopes and dip meters are very inaccurate and should never be used. : ) At least he answered you by e-mail, he never would me. If a scope is

See below; Oren Elliott changed the design of the coil form using another material after this happened. I remember e-mailing Steve Elliott about this and he mentioned them changing it. When they

Bob == When you blow out 180 candles on your birthday cake, it's time to start looking for some spare 4cx800s. R L Measures, AG6K, 805.386.3734 r@..., , rlm@..., www.somis.org

Oren Elliot mfg the roller inductor. 900w into a "3000w" tuner is hardly a worst case, Jim.

How about some input on a ETO 91b I have had for 10 years. It only takes 45 watts for 1500 out... I love this thing.... it was a present to myself when I passed the EXTRA exam.... What tube life

Made From Junk 3000 watt tuner is designed to weed out all the QRO operators and make them pay for their sins -...- and pay big. pentalab <jim.thomson@...> wrote: --- In

his Ameritron/ Heath/ Dentron /Amp supply/ MFJ 'engineering' numerous it, ARRL #### any idiot knows you can't use Delrin rod as a form for a roller inductor.... and even if you didn't.... when u went

Not even the Fairy Godmother's 8171-powered magic twanger can get rid of spam/junk-mail. W8JI has expressed disdain toward oscilloscopes and dipmeters. His problem with oscilloscopes was when one

To me, that Is peak P.