[Amps] 3-500Z quality and new 572B

Hsu hsu4qro at gmail.com
Mon Oct 13 17:40:43 EDT 2014


  Should due to the bigget lead inductance?I do not think 572B havd too much anode capacitance.just abit bigger. 

From: Chro me Bites 
Sent: Tuesday, October 14, 2014 12:50 AM
To: Hsu 
Subject: Re: [Amps] 3-500Z quality and new 572B

572b tubes used in quads have  anode capacitance (200ohms) which is  troublesome at 15-6 meters. 
n2eye

On Thu, Oct 9, 2014 at 12:14 AM, Hsu <hsu4qro at gmail.com> wrote:

  I just know the Chinese 3-500Z have a new  manufacturer, it located nearbay my home, just only 500 mtrs :D.
  Could someone can tell me how about  the tube's quality of new manuafcturer?
  I'm disscussing with them about  new version 572B's deal, I think it should with shorter
  electrode lead atleast (without  tube base like 3-500Z),any suggestion?
  what 572B's capacity of the market a year?
       Hsu 
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