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Good day Jim and Group. I reckon your suggestion of using a Pi-net on it's own is the best way to go, can always up the Q a bit and see what happens. That line 74 where GM3SEK uses that formula

On the gm3sek software, it does a calc, to arrive at image Z...called 'RM'.? ( sq root of? R1 X R2).? R1 = transformed plate load Z? ?R2= 50 ohm output Z). Fact is,,,? u can enter any value u

Does anyone know where a replacement relay can be obtained?? Or the manufacturer's name and part number? Thank you.

Good day Jim and Group. Excellent effort as always Jim.? In the dim and distant past before spreadsheets we used to make Peter's (GM3SEK's) Rm as 200 ohms and the Q of the eL coil as 2. As

Thank you, Jim. I’ve had to reverse engineer other people’s results in the past to find out that we were actually talking about the same thing. I have learned one thing in my 40+ years as a

Finally got it all figured out.? It's a bit of a complicated mess.? There is a total of 5 different? 'Q's'? involved on the GM3SEK? PI-L spreadsheet. The short of it is.... I had to maladjust the

He didn’t, Mike. He said “playing dumb”. Not the same thing at all ! Good to see passion is not dead around amplifiers.

If it's shipped freight, it likely is dropshipped directly from the factory (Hammond). Mine was. Steve, K0XP -- See my QRZ.com page at *https://www.qrz.com/db/K0XP*

Hmmm, interesting... The two I ordered (although back in 2020/2021) both drop-shipped direct to me in Texas, from Hammond in Canada) -- 73, ~Alan

We really don't need people being called dumb.

Keep playing dumb Correction (calculations)auto correct

Whats your problem? I don?t know what you mean with Carla. This thread is about Pi-L networks, not about anything you do. 73 -----Original-Nachricht----- Betreff: Re: [ham-amplifiers] High

The site jim uses provided the input and output network Carla’s for the 3x6 10kw pa and were dead nuts on. Has also been used for more pa’s then I can count in the past. Peter I’m starting to

Good day Group., Well Jim and Peter I've extrapolated the 350 and 90 pf values with Peter's frequencies for the C1 values, which show that Peter's value for the Q1 on GM3SEK's spreadsheet is

Hi Jim, I use the formulas by Eimac and also the PIEL software depending on what computer I use. My values for the anode capacitors are the total values. Any strays and tube capacitance etc. as well

On Sat, Mar 9, 2024 at 10:46 PM, Peter Voelpel wrote: > > > > Sorry Jim, > > > > > > > > I can?t follow your calculations and for what reason a Q of <8 should not > be possible on 40m. > > > > > > >

Sorry Jim, I can?t follow your calculations and for what reason a Q of <8 should not be possible on 40m. Lets assume a YC179 with 6kV on the anode and 2.75A anode current. Tube output impedance will

##? Nice try....still does not work on 40-10m. On 40m, min overall network Q that can be used with a PI-L? is? 8? ? (This is all based on having the MIN C1 being at least 14 pf). On 30m, min Q

Here the complex chain drive is finalized. Spur gears used on the inside of the inner front panel. The idea of the 3 x chains is to get the tune + load turns counters, and the bandswitch knob located

As already mentioned, the physical size of L and C is meant with smaller of course. And a Q of 5-6 with Pi-L is sufficient where 9 with a simple Pi might not be sufficient for harmonic supression.