Hi Tom,
I have ever also have a look few times on your website and infos about the
fl2100, some mods have been also done before I get the PA.
Load button on 160m is always at 0 ccw even on 1810khz or 1900khz,
just the plate get some influence 1 in CW part and 3 at 1850 for
example.
Current IP
Hi Bill , thanks for reply
On schematic i can observ that on 160m Loading capa is done so : by 3 *
500pf Variable in // VC2 (the Load button)520pF variable + c31 32 33 34
500pF 3kV in //
So 3500pF total...
And plate capa by C35-36 + VC1 so 250+100+ 120pf variable (who seems to be
ok here with
He's right. They are worthless.
Not true. The box says (in French):
Empreinte de controle du pays d'origine (facultative)
In English that is:
Postmark of the country of origin *(optional)*
The originating country (postal service) may stamp or not stamp
as they choose; it should not
I can buy all your IRC - 1.25 each. Via Paypal. Valid till 2017.
Sam LY5W
On 4/20/14, Joe Subich, W4TV wrote:
He's right. They are worthless.
Not true. The box says (in French):
Empreinte de controle du pays d'origine (facultative)
In English that is:
Postmark of the country
Is the input circuit properly matched?
Herb Schenbohm, KV4FZ
On 4/19/2014 7:47 PM, Tom W8JI wrote:
I think we must do something on the anode coil for better Q or add some
length, change diameter?.. or other things ..?!
The only real tank circuit issue is range of the tank components
If he gives the plate current and grid current compared to other bands, it
will answer all questions all at one time. :)
- Original Message -
From: Herb Schoenbohm he...@vitelcom.net
To: topband@contesting.com
Sent: Sunday, April 20, 2014 10:19 AM
Subject: Re: Topband: How Increase
I owned a FT2100Z for several years and the power on 160m was the same as
other bands. I don't expect any design flaw. The original tubes are not
available anymore, the 572's tubes manufactures nowadays are different and
optimized for audio applications and does not perform at the same level as
Damien,
Load button on 160m is always at 0 ccw even on 1810khz or 1900khz,
just the plate get some influence 1 in CW part and 3 at 1850 for
example.
This indicates not enough loading capacitance or not enough tank inductance,
especially if plate current is high and grid current low.
Low or
A proper tank would be about 300-330 pF on the tune side (allowing for plate
choke reactance) and 2000 pF on the load. This requires 33 uH on the total
inductance.
Yaesu has way too little tank inductance and that causes the capacitance to
be excessive. This puts the Q up in the 20 range,
Hi Tom,
Thanks for the detailed infos/conclusions with my remarks/measurements.
So i ll do some mods during the week , 1st add some capacitance on the Load
in // to c32 en cie... I ll begin with 470p more and do the test and
increase...
Once ok I ll add some inductance on the 160m circuit with
So i ll do some mods during the week , 1st add some capacitance on the Load
in // to c32 en cie... I ll begin with 470p more and do the test and
increase...
Once ok I ll add some inductance on the 160m circuit with a torroid T-200 +
some 10 turns ,and I ll have to found a place to put inside)
Frank is correct - unfortunately most postal workers around the globe are
completely uneducated about the proper use of IRCs or make up their own rules.
This is why I much prefer the US $ or even better LoTW!
73
Bernie
Bernie McClenny, W3UR
Editor of The Daily DX, The Weekly DX and How's DX?
Frank's quote is section 381.3(a) of the Supplemental Services section
of the International Mail Manual. Anyone having problems with a clerk
should suggest the clerk refer to the IMM to confirm and/or request the
clerk consult a Supervisor or the local Postmaster.
Unfortunately, section
I agree with Bernie, I have had much better success with green stamps rather
than IRC's.
Alan Clark
Sent from my iPad
On Apr 20, 2014, at 5:42 PM, Bernie McClenny, W3UR ber...@dailydx.com
wrote:
Frank is correct - unfortunately most postal workers around the globe are
completely
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