Search:

SOP if one is as serious as you appear to be.
No there isn't! Not even close! :rotfl:
That would appear to be SOP.



Anyway, it had to happen sooner or later.
Someone was bound to start...

Good.

I must have done something right then.

Thanks.

Easy to do.
It's fine for certain loads as shown by the voltage drives. Anyone can change the values as required/desired to get the performance they desire.

Changing loads to 16 ohms for HF and UHF.

If I remember correctly the LE85/2420/2421 was considered a "12 ohm" device and the 077/2405 was considered a "10 ohm" device so 16 ohms should be too...

It looked equivalent to me back when I did it. There could be issues though.
If I remember correctly this stuff was all posted somewhere else on the forum.
I think the green curves (A & B) were the...

Here.

1/4 is fine

Why? Did I narrowly miss another beating or something? :applaud:

For now that is. ;)

:p

mis-interpretation of language fence

Ah! Nope, makes sense now. This comes back to the point I made about various capacitors with the same published dielectric being "different". Your Solen guy...

I'm not quite sure how to take this so I'm not going to respond directly.

I skimmed over this thread again briefly and noticed reference to G.T. and the statement that biased film & foil would be...

The original zobel specs a 7.5 ohm value. If you are going to double up for power handling purposes use paralleled 15 ohm resistors. (R1^-1 + R2^-1)^-1

"do i have to add the zobel circuit for...

Change the 2x 7.5 ohm 10 W to 2x MO1000J15R 15 ohm 10 W. Everything else looks good. The ultra-low DCR of your main coil should be good for ~ 1 dB increased output from the 2235H/2245H. I see you've...

1. Metallized poly main caps could very well benefit from film & foil poly bypass caps but you'd have to check that for yourself. None of these damn things are created equal. Some of the metallized...

:cheers:

Ok, first off. I like the chalk board snap dude. :yes: Let's all get one!

There should be a 1.0 mH choke to ground between your 4 uF and 13.5 uF.

I'm not sure what you mean. Show me on this schematic:

It has to stay as part of the bandpass for the 2121 when run in full passive mode though.

Parts Sources in response to PM

www.solen.ca

http://www.solen.ca/pdf/capretusd.pdf

http://www.solen.ca/pdf/indretusd.pdf

http://www.partsconnexion.com/catalog/resistors.html

No, you're right! It isn't that bad! It's all a matter of evolutionary changes.

Anything between 2.0 and 5.0 Mohms.

No, it isn't necessary to build a symetrical value.

The problem was fixed with the 2122H. The old inverted paper domes of the LE10, 2121, 2105, LE5-2, etc were fine for their times.

"I just remarks is same difference in UHF scetion in schematic 3.3 uF and 3.9 uF (in original plan is 1,5+,01 Uf)

Please just confirm the value ???"

The actual value is 1.8 uF, so 3.3 uF and...

In question 4 ( i attache pict for more explicite question)
What is best circuit for HF ??? ( 2420 ) This two schema appear OK but different...

Ok, don't worry about the 2420. It will work in...

1--- For UHF section
a--- what is " .10mH + 9V " in uhf section ????

A cut and paste vestige - I fixed it.

b--- Because I'm a 2405 (16 ohms) and the DCR is 8 ohms and the 2405H
is 4 ohms...

6--- the # 91 post on this threard the value of resistance is not same on your recent schematic 3145 Dc charge... the HF is 3 serial resistor and in # 91 post only 1 ... what is good value for 2420...

Here's a Solen/Mills parts list along with the schematic from post 100.
You can substitute the Solen resistors if you wish.
They run something like $0.50 instead of $3.50 (Mills).