[Amps] HEathkit SB-1000 Arcing

Sat Dec 1 12:14:37 EST 2012

Hi Phil nice to hear from you. Merry Christmas to you and yours.

I'm aware of Danny but I sold the SB-1000 for $350. It's no biggy as I 
already have two AL-80B's in the closet.

I've been doing QRP only DXing again on the digital modes of JT65A and JT9. 
So for now the amps are collecting dust.

73 & GUD DX,
Thomas F. Giella NZ4O
Lakeland, FL, USA
nz4o at tampabay.rr.com

NZ4O Amateur Radio & SWL Autobiography: http://www.nz4o.com
NZ4O MF/HF/6M Radiowave Propagation Forecast: http://www.solarcycle24.org

----- Original Message ----- 
From: <amps-request at contesting.com>
To: <amps at contesting.com>
Sent: Saturday, December 01, 2012 12:00 PM
Subject: Amps Digest, Vol 120, Issue 1

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> Today's Topics:
>
>   1. Re: Heathkit SB-1000 Arcing (Phil LaMarche)
>   2. Re: Replacement fan for a SB 220 (Carl)
>   3. Has anyone ever actually build an 833A linear? (Mike Waters)
>   4. Re: 4CX2500 (Leigh Turner)
>   5. Re: Heathkit SB-1000 Arcing (Han Higasa)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 29 Nov 2012 11:15:26 -0500
> From: "Phil LaMarche" <plamarc1 at verizon.net>
> To: "'Bryan Swadener'" <bswadener at yahoo.com>, <amps at contesting.com>
> Cc: djconner at verizon.net
> Subject: Re: [Amps] Heathkit SB-1000 Arcing
> Message-ID: <004401cdce4c$be5db120$3b191360$@verizon.net>
> Content-Type: text/plain; charset=iso-8859-1
>
> You need to contact Danny Conner who lives near you and works in Tampa. 
> He
> is the best and is honest and reasonable.  He'll have your Amp going in a
> very short amount of time.  Contact me for the phone number or use the 
> email
> above.
>
> Phil
>
> Philip LaMarche
>
> ?
> 727-944-3226
> 727-510-5038 Cell?
> ?www.w9dvm.com
> WWW.FLAMGROUP.COM
>
> K3 # 1605
> KPA500 # 029
> P3 #1480
> KAT500  #50
>
> ?CCA 98-00827
> CRA 1701
> W9DVM
> ?
>
> -----Original Message-----
> From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Bryan 
> Swadener
> Sent: Tuesday, November 27, 2012 7:29 PM
> To: amps at contesting.com
> Subject: Re: [Amps] Heathkit SB-1000 Arcing
>
>> Date: Sun, 25 Nov 2012 19:39:55 -0500
>> From: Tom NZ4O
>> Subject: [Amps] Heathkit SB-1000 Arcing
>>
>> It's time to sell the SB-1000 at a bargain price.
>>
>>
>> 73 & GUD DX,
>> Thomas F. Giella NZ4O
>> Lakeland, FL, USA
>
> Tom,
>
> No.  If you're not comfortable working on it, it's time to find someone
> local to you to work on it.
>
> vy 73,
> Bryan WA7PRC
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
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>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 29 Nov 2012 12:21:38 -0500
> From: "Carl" <km1h at jeremy.mv.com>
> To: "Bryan Swadener" <bswadener at yahoo.com>, <amps at contesting.com>
> Subject: Re: [Amps] Replacement fan for a SB 220
> Message-ID: <D96F9C933AD34F3083FD6FDF00507A96 at computer1>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Most of the time the original fan motor can be taken apart, the shafts and
> bearing surfaces thoroughly cleaned. Then relube including the felt
> reservoir at the back. I use a 5 or 10 weight synthetic oil that doesnt
> easily pick up dirt or harden.
> The blade hub chould be 1/16" from the motor frame for proper air flow and
> the blades completely cleaned. The small aluminum piece on top of the
> perforated shield must also be in place.
>
> Carl
> KM1H
>
>
> ----- Original Message ----- 
> From: "Bryan Swadener" <bswadener at yahoo.com>
> To: <amps at contesting.com>
> Sent: Tuesday, November 27, 2012 7:23 PM
> Subject: Re: [Amps] Replacement fan for a SB 220
>
>
>> That is Dayton pn 4M070.  Grainger sells it for $22.47.
>> Reuse your old fan blade, or spend twice the money to
>> get the blade and then have to balance it.
>>
>> vy 73,
>> Bryan WA7PRC
>>
>>> Date: Mon, 26 Nov 2012 14:08:25 -0800
>>> From: Mike K6BR
>>> Subject: Re: [Amps] Replacement fan for a SB 220
>>>
>>> http://harbachelectronics.com/main/page_products_sb220__sb221.html
>>>
>>> Mike, K6BR
>>>
>>> -----Original Message-----
>>> From: Amps [mailto:amps-bounces at contesting.com]
>>> On Behalf Of Dennis Kippa
>>> Sent: Sunday, November 25, 2012 1:50 PM
>>> To: amps at contesting.com
>>> Subject: [Amps] Replacement fan for a SB 220
>>>
>>> Any one know of a source for a replacement cooling fan for a
>>> SB 220???
>>>
>>> --
>>> Dennis N5DPK
>>> Lake Hawkins TX
>>> Wood County
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>
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 29 Nov 2012 11:22:11 -0600
> From: Mike Waters <mikewate at gmail.com>
> To: amps at contesting.com
> Subject: [Amps] Has anyone ever actually build an 833A linear?
> Message-ID:
> <CA+FxYXgFEs=VLnAGhM9ySHC_UACQP3gOg-OpA5aOyd_gnhkuXw at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> This article is in the 1980 ARRL Handbook, showing a grid-driven 833A in
> linear service. But I have never heard of anyone actually trying it, and
> I've done many Google searches.
> http://www.w7ekb.com/glowbugs/projects/Universal%20Amp.pdf
>
> I have a bunch of 833Cs here (the graphite plate version of the 833A) and
> am considering a 160m linear like it with two paralleled tubes.
>
> 73, Mike
> www.w0btu.com
>
>
> ------------------------------
>
> Message: 4
> Date: Fri, 30 Nov 2012 11:52:59 +1030
> From: "Leigh Turner" <invertech at frontierisp.net.au>
> To: "'Jeff Wilaby'" <jwill at chartermi.net>
> Cc: amps at contesting.com
> Subject: Re: [Amps] 4CX2500
> Message-ID: <20121130010944.1E2E6230351 at mail.aitel.com.au>
> Content-Type: text/plain; charset="us-ascii"
>
>
> Hi Jeff,
>
> I presume you are referring here to the Russian GU84B tube...the 4CX2500
> notation is a misnomer as such a tube was never actually produced within 
> the
> US Eimac tetrode family.
>
> Leigh
> VK5KLT
>
>
> -----Original Message-----
> From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Jeff Wilaby
> Sent: Wednesday, 28 November 2012 1:16 PM
> To: amps at contesting.com
> Subject: [Amps] 4CX2500
>
>  Hello all,
>
> I am thinking of building an HF amp using a 4CX2500.  I would like to talk
> with someone has built an amp using this tube.
>
> 73s in advance, Jeff KA0JW
>
> _______________________________________________
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>
>
> ------------------------------
>
> Message: 5
> Date: Fri, 30 Nov 2012 11:03:32 +0900
> From: "Han Higasa" <higasa at plum.ocn.ne.jp>
> To: "amps @ COL" <amps at contesting.com>
> Subject: Re: [Amps] Heathkit SB-1000 Arcing
> Message-ID: <313A334B0EAB45999EE831770040A847 at yukikaze2010a>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=response
>
> hi gents. I also have one.
>
> If the ark occur at the stand-by state (not TXing) you should
> check HV+ as well as the tube itself.
>
> The tube can cause ark inside especially when it is NOS.
> If it is the case you can see typically pink ark inside the tube.
>
> A plastic insulator between the chassis and the base of plate RFC
> can break into pieces after long operation.
> I have replaced it to 25 x 25 x 3mm teflon sheet.
>
> Also, I have experienced a splitted lower RFC brass-band.
> It can cause a short-state to chassis ground. It is easy to change
> the band but I have soldered another piece of copper sheet to
> chink it up.
>
> My SB-1000 may cause ark around the band switch when
> feeding high-SWR load but almost stable.
>
> GL, de Han JE1BMJ
>
> ----- Original Message ----- 
> From: "Thomas F Giella NZ4O" <nz4o at tampabay.rr.com>
> To: "amps @ COL" <amps at contesting.com>
> Sent: Monday, November 26, 2012 9:39 AM
> Subject: [Amps] Heathkit SB-1000 Arcing
>
>
>> Thanks much for the responses. I checked everything suggested but no joy.
>>
>> I even resoldered all connections. The capacitors were put in by a
>> previous owner and are supposed to be new. They checked out okay.
>>
>> The arcing sound is definitely coming from the power supply area but even
>> in the dark I can't see the flash of light, bizarre. It's time to sell 
>> the
>> SB-1000 at a bargain price.
>>
>>
>> 73 & GUD DX,
>> Thomas F. Giella NZ4O
>> Lakeland, FL, USA
>> nz4o at tampabay.rr.com
>>
>> NZ4O Amateur Radio & SWL Autobiography: http://www.nz4o.com
>> NZ4O MF/HF/6M Radiowave Propagation Forecast: http://www.solarcycle24.org
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>
>
>
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>
> End of Amps Digest, Vol 120, Issue 1
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