Joe,
Yes, it's for HF. The choke program works good, just tell it the diameter of
the coil measured from the center of the wire across the coil, the length of
the coil, and the number of turns. It's easy by using a wire chart. Pick a wire
size for the current you want to handle, get its diameter. Some charts give the
turns per inch. All the other calcs work okay too.
Best,
Will
*********** REPLY SEPARATOR ***********
On 5/23/05 at 3:20 PM Joe Francalanza wrote:
>Ok thank you for the replay...it is for the HF bands......
>
>many thanks
>joe
>----- Original Message -----
>From: <amps-request@contesting.com>
>To: <amps@contesting.com>
>Sent: Monday, May 23, 2005 3:20 AM
>Subject: Amps Digest, Vol 29, Issue 40
>
>
>> Send Amps mailing list submissions to
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>>
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>> or, via email, send a message with subject or body 'help' to
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>> When replying, please edit your Subject line so it is more specific
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>>
>>
>> Today's Topics:
>>
>> 1. Re: FW: pi to pi-L o/p matching question (jeff millar)
>> 2. Re: RENEGADE CUSTOM 300B (John Bodine/K2UBG)
>> 3. Re: RENEGADE CUSTOM 300B (Will Matney)
>> 4. IC-746Pro Timing between SEND output and RF (jeff millar)
>> 5. Re: FW: pi to pi-L o/p matching question (John Irwin)
>> 6. Re: FW: pi to pi-L o/p matching question (Barrie Smith)
>> 7. Re: FW: pi to pi-L o/p matching question (Will Matney)
>> 8. Re: FW: pi to pi-L o/p matching question (Barrie Smith)
>> 9. 3cx3000a7 choke (Joe Francalanza)
>> 10. 4-1000 Chimney (aborg)
>> 11. Re: 3cx3000a7 choke (Phil Clements)
>> 12. Re: 4-1000 Chimney (Gary Smith)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Sun, 22 May 2005 12:54:14 -0400
>> From: jeff millar <wa1hco@adelphia.net>
>> Subject: Re: [Amps] FW: pi to pi-L o/p matching question
>> Cc: amps@contesting.com
>> Message-ID: <4290B936.5070408@adelphia.net>
>> Content-Type: text/plain; charset=us-ascii; format=flowed
>>
>> Interesting discussion (and I like the calculator, too). But, a
>> question, where do you get the information about the plate load
>> constant?...any way to derive it from the published information about
>> the tubes?
>>
>> jeff, wa1hco
>>
>> Larry Carman wrote:
>>
>>>Tony,
>>> Thanks for the suggestion. I'll work on adding a drop down box to
>>> select
>>>the tube family. For the short haul I'll just increase the AB2 to 1.65.
>>>Not sure where I might get the tube family info, so if anyone can
>>>help I'd greatly appreciate it.
>>>Regards,
>>>Larry N5BIP
>>>
>>>-----Original Message-----
>>>From: Tony King - W4ZT [mailto:amps@w4zt.com]
>>>Sent: Saturday, May 21, 2005 11:11 PM
>>>To: Larry Carman
>>>Cc: amps@contesting.com
>>>Subject: Re: [Amps] FW: pi to pi-L o/p matching question
>>>
>>>
>>>Larry,
>>>
>>>Your Plate Load calculator for an AB2 amp seems to be using a constant
>>>of about 1.55 which might be a bit on the low side. The 8877 might be
>>>close at 1.6 but a number of other tubes would be closer to 1.8 to 2. I
>>>wondered what you used to determine the constant? If there was another
>>>input field to select a tube "family" to set the constant it might be
>>>helpful.
>>>
>>>Good job!
>>>
>>>73, Tony W4ZT
>>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Sun, 22 May 2005 13:26:12 -0400 (GMT-04:00)
>> From: John Bodine/K2UBG <k2ubg@earthlink.net>
>> Subject: Re: [Amps] RENEGADE CUSTOM 300B
>> To: amps@contesting.com
>> Message-ID:
>> <24766414.1116782772498.JavaMail.root@wamui-cypress.atl.sa.earthlink.net>
>>
>> Content-Type: text/plain; charset=us-ascii
>>
>> James,
>>
>> Are you running this amp on 220vac?
>>
>>
>> John/K2UBG
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Sun, 22 May 2005 14:47:26 -0400
>> From: "Will Matney" <craxd1@ezwv.com>
>> Subject: Re: [Amps] RENEGADE CUSTOM 300B
>> To: amps@contesting.com
>> Message-ID: <200505221447260200.00BE21E9@mail.ezwv.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Johns right, I never thought of that. Is it possible it is connected for
>> 220 Vac but being ran on 110 vac? Most 3-500Z amps are ran from 220.
>That
>> would drop both the heater and plate voltage to half.
>>
>> Best,
>>
>> Will
>>
>> *********** REPLY SEPARATOR ***********
>>
>> On 5/22/05 at 1:26 PM John Bodine/K2UBG wrote:
>>
>>>James,
>>>
>>> Are you running this amp on 220vac?
>>>
>>>
>>>John/K2UBG
>>>
>>>
>>>
>>>_______________________________________________
>>>Amps mailing list
>>>Amps@contesting.com
>>>http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Sun, 22 May 2005 15:03:12 -0400
>> From: jeff millar <wa1hco@adelphia.net>
>> Subject: [Amps] IC-746Pro Timing between SEND output and RF
>> To: amps <amps@contesting.com>
>> Message-ID: <4290D770.9060402@adelphia.net>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> To followup on a previous question about the timing between the Send
>> signal on the back and RF output...
>>
>> After a bit of measuring in SSB, FM and CW breakin, the RF starts 10
>> msec after Send goes low and ends 10 msec before Send goes high.
>>
>> jeff, wa1hco
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Sun, 22 May 2005 12:10:33 -0700 (PDT)
>> From: John Irwin <crazytvjohn@yahoo.com>
>> Subject: Re: [Amps] FW: pi to pi-L o/p matching question
>> To: amps@contesting.com
>> Message-ID: <20050522191033.97982.qmail@web32213.mail.mud.yahoo.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> In relation to the pinebeetle pi network site
>>
>> I like and use this site.
>>
>> There is a lot of stuff out on pi-piL output networks in the way of how
>to
>> do it charts and computer programs .
>> Not so for a pi network for the input of a amplifier.
>>
>> It is a lot of math to figure it out or you could copy someone Else's
>data
>> from a amp article. But not any more. The pinebeetle calc will do
>these
>> quite easily.
>>
>>
>> To calculate using "pi calculation", for cathode Z at the tube Z=75 ,
>Z
>> in=50 put the 75 in source impedance,the 50 in the load impedance,Q=2,
>> freq=1.8, c min=0, press calculate
>> results c1=1419pf L1=5.41
>> c2=1407pf
>> These numbers match within a pf or 2 the numbers out of the 23 edition
>of
>> the radio handbook by Bill Orr Figure 44 page 14-22
>> I ran most of the chart figures and all were very close. Other programs
>I
>> found on the net and the arrl "match" program could not reproduce the
>> above numbers .
>> http://www.pinebeetle.net/amplifier_main.html
>>
>> John kb9tc
>>
>>
>> __________________________________________________
>> Do You Yahoo!?
>> Tired of spam? Yahoo! Mail has the best spam protection around
>> http://mail.yahoo.com
>>
>> ------------------------------
>>
>> Message: 6
>> Date: Sun, 22 May 2005 14:00:17 -0600
>> From: "Barrie Smith" <barrie@centric.net>
>> Subject: Re: [Amps] FW: pi to pi-L o/p matching question
>> To: "John Irwin" <crazytvjohn@yahoo.com>, <amps@contesting.com>
>> Message-ID: <000401c55f08$e0b2f9d0$0a01a8c0@barrylww3pb8pz>
>> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>> reply-type=original
>>
>> I've looked at this program and don't understand what "image Q" is?
>>
>> Barrie, W7ALW
>>
>>
>>
>> ------------------------------
>>
>> Message: 7
>> Date: Sun, 22 May 2005 16:13:47 -0400
>> From: "Will Matney" <craxd1@ezwv.com>
>> Subject: Re: [Amps] FW: pi to pi-L o/p matching question
>> To: amps@contesting.com
>> Message-ID: <200505221613470210.010D3363@mail.ezwv.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Barrie,
>>
>> I didn't see an Image Q, but see an Image Z for image impedance which is
>> the mid impedance at load C. You are speaking of the PHP script Pi-L app
>> on pinebeetle.net?
>>
>> Best,
>>
>> Will
>>
>> *********** REPLY SEPARATOR ***********
>>
>> On 5/22/05 at 2:00 PM Barrie Smith wrote:
>>
>>>I've looked at this program and don't understand what "image Q" is?
>>>
>>>Barrie, W7ALW
>>>
>>>_______________________________________________
>>>Amps mailing list
>>>Amps@contesting.com
>>>http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 8
>> Date: Sun, 22 May 2005 14:29:02 -0600
>> From: "Barrie Smith" <barrie@centric.net>
>> Subject: Re: [Amps] FW: pi to pi-L o/p matching question
>> To: <craxd1@ezwv.com>, <amps@contesting.com>
>> Message-ID: <001401c55f0c$e4842940$0a01a8c0@barrylww3pb8pz>
>> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>> reply-type=original
>>
>> Will:
>>
>> Sorry! It was image Z.
>>
>>> Barrie,
>>>
>>> I didn't see an Image Q, but see an Image Z for image impedance which is
>>> the mid impedance at load C. You are speaking of the PHP script Pi-L app
>>> on pinebeetle.net?
>>>
>> Yes.
>>
>>
>>> Best,
>>>
>>> Will
>>>
>>> *********** REPLY SEPARATOR ***********
>>>
>>> On 5/22/05 at 2:00 PM Barrie Smith wrote:
>>>
>>>>I've looked at this program and don't understand what "image Q" is?
>>>>
>>>>Barrie, W7ALW
>>>>
>>>>_______________________________________________
>>>>Amps mailing list
>>>>Amps@contesting.com
>>>>http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
>>>
>>> _______________________________________________
>>> Amps mailing list
>>> Amps@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 9
>> Date: Sun, 22 May 2005 23:36:16 +0200
>> From: "Joe Francalanza" <joefran@camline.net.mt>
>> Subject: [Amps] 3cx3000a7 choke
>> To: <amps@contesting.com>
>> Message-ID: <000a01c55f16$48ef78e0$0100000a@power>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi
>>
>> I like to make the plate choke for HF for the 3CX3000A7,can
>any
>> one know how many turns and diameter.....
>>
>> many thanks
>> Joe
>> 9H1GT Joe Francalanza
>> ------------------------------------------------------------------
>> e-mail joefran@camline.net.mt
>> -----------------------------------------------------------------
>> address 24 Triq id dahla ta san tumas
>> zejtun ZTN04 Malta
>>
>> ------------------------------
>>
>> Message: 10
>> Date: Sun, 22 May 2005 17:30:24 -0700 (PDT)
>> From: aborg <a_borg@yahoo.com>
>> Subject: [Amps] 4-1000 Chimney
>> To: Amps Amps <amps@contesting.com>
>> Message-ID: <20050523003024.73476.qmail@web31102.mail.mud.yahoo.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Hello Ampers,
>>
>> Anybody got any other alternatives for 4-1000
>> chimneys besides 1 gallon pickle jars ?
>>
>> Thanks
>>
>> Mike-KK4MS
>> a_borg@yahoo.com
>>
>> __________________________________________________
>> Do You Yahoo!?
>> Tired of spam? Yahoo! Mail has the best spam protection around
>> http://mail.yahoo.com
>>
>>
>> ------------------------------
>>
>> Message: 11
>> Date: Sun, 22 May 2005 19:45:56 -0500
>> From: "Phil Clements" <philc@texascellnet.com>
>> Subject: Re: [Amps] 3cx3000a7 choke
>> To: <joefran@camline.net.mt>, <amps@contesting.com>
>> Message-ID: <20050523005950.B9483185E04@mail.texascellnet.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> First, we need to know what band(s) you intend to cover.
>>
>> (((73)))
>> Phil Clements,
>> K5PC
>>
>>
>> -----Original Message-----
>> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
>> Behalf Of Joe Francalanza
>> Sent: Sunday, May 22, 2005 3:36 PM
>> To: amps@contesting.com
>> Subject: [Amps] 3cx3000a7 choke
>>
>> Hi
>>
>> I like to make the plate choke for HF for the 3CX3000A7,can any
>> one know how many turns and diameter.....
>>
>> many thanks
>> Joe
>> 9H1GT Joe Francalanza
>> ------------------------------------------------------------------
>> e-mail joefran@camline.net.mt
>> -----------------------------------------------------------------
>> address 24 Triq id dahla ta san tumas
>> zejtun ZTN04 Malta
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 12
>> Date: Sun, 22 May 2005 18:19:21 -0700
>> From: "Gary Smith" <wa6fgi@sbcglobal.net>
>> Subject: Re: [Amps] 4-1000 Chimney
>> To: "aborg" <a_borg@yahoo.com>, "Amps Amps" <amps@contesting.com>
>> Message-ID: <001301c55f35$7357b380$a130fea9@datasmit>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Coleman gas mantle lantern glass. it is made by Pyrex. You may have to
>> fashion the top of the chimney.
>> 73,
>> Gary... wa6fgi
>> ----- Original Message -----
>> From: aborg
>> To: Amps Amps
>> Sent: Sunday, May 22, 2005 5:30 PM
>> Subject: [Amps] 4-1000 Chimney
>>
>>
>> Hello Ampers,
>>
>> Anybody got any other alternatives for 4-1000
>> chimneys besides 1 gallon pickle jars ?
>>
>> Thanks
>>
>> Mike-KK4MS
>> a_borg@yahoo.com
>>
>> __________________________________________________
>> Do You Yahoo!?
>> Tired of spam? Yahoo! Mail has the best spam protection around
>> http://mail.yahoo.com
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>> ------------------------------
>>
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>> End of Amps Digest, Vol 29, Issue 40
>> ************************************
>>
>
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