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REMEMBER: One experiment, well carried out, is worth 10 theoretical
explanations
After personally blowing out 4-5 amps and having repaired same with
Measures kit, I
would sugGesst CAVEAT EMPTOR!!! fwiwORTH ALEX W2OX/V47KP
cd wrote:
> Those of you that have not picked up, or had a look at the new ARRL
> Handbook 2000, there is some mention now of Nichrome Parasitic
> suppressors. It reads as follows in chapter 13.26. "Some designers use
> nichrome or other resistance wire for L2, but there is no credible
> evidence of any fundamental difference in importance as a result." It
> goes on to say that W4ETO, amplifier manufacturer has never seen an HF
> amplifier using modern tubes that could not be made completely free of
> VHF parasitics by using one of the simple parasitic suppressor
> contruction described above" It does not mention what "advanced"
> techniques should be used! Anyway for those curious have a
> read. CraigVK3HE
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REMEMBER: One experiment, well carried out, is worth
10 theoretical explanations
<BR>After personally blowing out 4-5 amps and having repaired same with
Measures kit, I
<BR>would sugGesst CAVEAT EMPTOR!!! fwiwORTH
ALEX W2OX/V47KP
<BR>cd wrote:
<BLOCKQUOTE TYPE=CITE> <STYLE></STYLE>
<FONT FACE="Arial"><FONT SIZE=-1>Those
of you that have not picked up, or had a look at the new ARRL Handbook
2000, there is some mention now of Nichrome Parasitic suppressors. It reads
as follows in chapter 13.26.</FONT></FONT> <FONT FACE="Arial"><FONT
SIZE=-1>"Some
designers use nichrome or other resistance wire for L2, but there is no
credible evidence of any fundamental difference in importance as a result."
It goes on to say that W4ETO, amplifier manufacturer has never seen an
HF amplifier using modern tubes that could not be made completely free
of VHF parasitics by using one of the simple parasitic suppressor contruction
described above" It does not mention what "advanced" techniques should
be used!</FONT></FONT> <FONT FACE="Arial"><FONT SIZE=-1>Anyway for
those curious have a read.</FONT></FONT> <FONT FACE="Arial"><FONT
SIZE=-1>Craig</FONT></FONT><FONT FACE="Arial"><FONT
SIZE=-1>VK3HE</FONT></FONT></BLOCKQUOTE>
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