Linear Question

[john]

The AL80A/B is a nicer amp, with a rugged transmitting tube. I'd go for it

John k5mo




At 05:07 AM 4/28/2010, Nigel Holmes wrote:
>1. The extra 300 watts won't be noticeable by the receiver in practice. It 
>will increase your power bill in direct proportion.
>
>2. One big glass tube with an orange anode looks better than four medium 
>glass bottles with cherry anodes.
>
>3. Need less spares inventory. Easier to bias a single tube stage. More 
>reliable with a single bottle.
>
>Easy for me to comment having seen neither amp, much less used them...
>
>The 572B/T160L is a beefed up 811A - more massive anode, higher plate 
>voltage rating. A good choice for replacing 811A in amps originally rated 
>at 200W PEP per 811A if you wanted to keep the steam up for long periods.
>
>Whatever you choose avoid "cheap" spare tubes. See 
>http://www.eham.net/reviews/detail/1165 etc for comment on modern 572B's
>
>73 Nigel VK3DZ
>
>-----Original Message-----
>From: Boat Anchor Owners and Collectors List 
>[mailto:BOATANCHORS at LISTS.TEMPE.GOV] On Behalf Of Vic Gagliano
>Sent: Wednesday, 28 April 2010 6:33 PM
>To: BOATANCHORS at LISTS.TEMPE.GOV
>Subject: [BOATANCHORS-TEMPE] Linear Question
>
>Hello Anchorites:
>
>Just wanted to toss this question out there abt the Ameritron amps 80B and 
>the 572.
>
>With all things being equal, anybody have any experience with either of them?
>
>Seems like the 80B is 1Kw with a 3-500 tube in it and for a couple of 
>hundred more
>
>you get the 1300 watt 572 with 4 each 572's.
>
>Am I correct in assuming the 572's are 811's on steroids pushed a little 
>harder?
>
>Is it worth the extra money for the 300 watt difference between the two, 
>or what?
>
>
>
>Thanks guys,
>
>
>
>Vic WA2ARQ
>
>
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