Greetings Alek,
I bought a NIB spare that was tested & signed by Array Solutions . OM Power
tests all tubes prior to drop ship.
No problem with the tube in the amp so far, and Array Solutions has them in
stock.
I agree there are sellers either selling pulls or poor quality knockoffs on
eBay that have gone bad fast, but if you buy directly from OM Power or Array
Solutions you should be fine.
73 Darrell AB2E
________________________________
From: Amps <amps-bounces@contesting.com> on behalf of Alek Petkovic
<vk6apk@bigpond.com>
Sent: Thursday, June 23, 2022 8:14 PM
To: amps@contesting.com <amps@contesting.com>
Subject: Re: [Amps] 4 KW?
And those FU728F tubes are junk. It is all but impossible to get a good
one these days. The supply has completely dried up.
I would not touch an amplifier that uses that tube.
73, Alek, VK6APK
On 24/06/2022 8:11 am, AB2E Darrell wrote:
> I forgot to mention, I own an OM Power 2000A+, uses a single FU728F tube.
> 2300W into the dummy load, no problem.
> 15W drive on 160m gives me legal power, typically 20-25W on most other bands,
> and it has 6m.
> Beautiful amps.
> The 4001A uses 2 of those FU728F tubes!
> 73 Darrell AB2E
>
> ________________________________
> From: Amps <amps-bounces@contesting.com> on behalf of AB2E Darrell
> <ab2e@hotmail.com>
> Sent: Thursday, June 23, 2022 8:04 PM
> To: ve3rwj@winsystem.org <ve3rwj@winsystem.org>; amps@contesting.com
> <amps@contesting.com>
> Subject: Re: [Amps] 4 KW?
>
>
> Yes, distributed by Array Solutions, $8850
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.arraysolutions.com%2Fom-power%3Fproduct_id%3D14952&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=kysp8MKLi2DCy2amOCXLAl2k17D63DpBVLh%2FbrMQlLk%3D&reserved=0
> 73 Darrell AB2E
>
> The OM4000A is a memorized tuning settings HF amplifier. More than 4000 W
> peak
> output.<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.arraysolutions.com%2Fom-power%3Fproduct_id%3D14952&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=kysp8MKLi2DCy2amOCXLAl2k17D63DpBVLh%2FbrMQlLk%3D&reserved=0>
> The OM4000A is a memorized tuning settings HF amplifier. More than 4000 W
> peak output. Continuous 2500 W output, no time limit. The OM4000A can control
> a switch of up to ten antennas and select up to ten filters. QSK ready. 2 x
> FU-728F tetrodes.
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.arraysolutions.com%2F&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=qOqMn9cCv4vV75uy6bE%2BclKBQ%2B5GSs%2Bhlx%2B7V14M7eQ%3D&reserved=0
>
> ________________________________
> From: Amps <amps-bounces@contesting.com> on behalf of ve3rwj@winsystem.org
> <ve3rwj@winsystem.org>
> Sent: Thursday, June 23, 2022 8:01 PM
> To: amps@contesting.com <amps@contesting.com>
> Subject: [Amps] 4 KW?
>
> Hmm, is this legal in North America?
>
>
>
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fqrznow.com%2Fom4001a-om-power-amflifier-4-kw%2F&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=xpe0Qwmxx6VGk7gH6mchIO%2F3kvsd4l%2F8kQ2FsLpro%2BE%3D&reserved=0
>
> Looks fully-featured though, and it still has those lovely glowing glass
> bottles inside. 😊
>
>
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.contesting.com%2Fmailman%2Flistinfo%2Famps&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ppFDDplnR2StxNLGeco%2Fh5Q8vws9LWLvZO4O8ntY0BA%3D&reserved=0
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.contesting.com%2Fmailman%2Flistinfo%2Famps&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ppFDDplnR2StxNLGeco%2Fh5Q8vws9LWLvZO4O8ntY0BA%3D&reserved=0
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.contesting.com%2Fmailman%2Flistinfo%2Famps&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ppFDDplnR2StxNLGeco%2Fh5Q8vws9LWLvZO4O8ntY0BA%3D&reserved=0
_______________________________________________
Amps mailing list
Amps@contesting.com
https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.contesting.com%2Fmailman%2Flistinfo%2Famps&data=05%7C01%7C%7C5323fa26509d45ad077008da55768bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637916264959875703%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ppFDDplnR2StxNLGeco%2Fh5Q8vws9LWLvZO4O8ntY0BA%3D&reserved=0
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|