Maybe you would have better results if you addressed your email for
Hsu to sohu.com instead of sohu.co. His mail server appears to be
reachable:
$ host -t mx sohu.com
sohu.com mail is handled by 10 sohumx.sohu.com.
$ telnet sohumx.sohu.com 25
Trying 61.135.132.100...
Connected to sohumx.sohu.com.
Escape character is '^]'.
220 sohumx180.sohu.com ESMTP
73 - Bob, N7XY
On Jul 24, 2006, at 6:15 AM, Mike Schatzberg wrote:
> Hello Hsu:
>
> As others have discovered, we can not reply directly to you from
> the United
> States. Additionally, my spam filter automatically deleted your
> email to
> me, before I could read your message.
>
> I have changed my filter settings, and your emails will now be
> received.
> Please resend your email to me. It will reach my computer this time.
>
> Thank you.
>
> 73,
>
> Mike
> W2AJI
> ----- Original Message -----
> From: "Hsu" <Jbenson@sohu.com>
> Cc: <amps@contesting.com>
> Sent: Sunday, July 23, 2006 8:14 AM
> Subject: Re: [Amps] 3-500Z convertion
>
>
>> Thanks Peter!
>> I have got a a died TL922 as a junk,I only pay $100 for it.so I
> don't want pay for it too much.Althought the 3-500Z are made in
> China, but I
> call the factory, They ask me pay $500 for a matched pair!
> Mr.Richard L.
> Measures have mentioned in the list that 3-500Z can replace by
> 4-400(need
> some work),I have a pair 4-400C, but I just test them, they all
> died!in
> this weekend, I check my junk box, and find out some NOS Chinese
> FU-500Fs(same as 4X500A) and its socket, I just read its
> datasheets , I
> found the screen and grid dissipation power not too small, so,I
> think maybe
> it can work in GG and cathode drive.It have same volt and cureent of
> filament as 3-500Z.
>> 73! Hsu
>>
>>
>> ----- Original Message -----
>> From: "Peter Chadwick" <g3rzp@g3rzp.wanadoo.co.uk>
>> To: "Hsu" <Jbenson@sohu.co>; <amps@contesting.com>
>> Sent: Sunday, July 23, 2006 7:14 PM
>> Subject: Re: [Amps] 3-500Z convertion
>>
>>
>>> Hsu said:
>>>> My TL922's 3-500Zs died,I have some 4X500As,it seems the 3-500Z can
> convertion by 4X500A, <
>>> The 4X500A is an external anode tube, so the cooling won't be
>>> right, it
> needs a different socket, and it's a tetrode. You'd need to do soem
> careful
> calculation to determine if the grid and screen dissipations would be
> exceeded. All in all, i'd say buyin a pair of new 3-500Z is a
> better way to
> o.
>>> 73
>>> Peter G3RZP
>>>
>>>
>>>
>>>
>>>
>>> ========================================
>>> Message Received: Jul 23 2006, 11:54 AM
>>> From: "Hsu"
>>> To: amps@contesting.com
>>> Cc:
>>> Subject: [Amps] 3-500Z convertion
>>>
>>> Hi, I'm a new member.My TL922's 3-500Zs died,I have some 4X500As,it
> seems the 3-500Z can convertion by 4X500A, Does anyone have this
> experience?Thanks in advance!
>>> 73! Hsu
>>> _______________________________________________
>>> 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
>>>
>> _______________________________________________
>> Amps mailing list
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>> http://lists.contesting.com/mailman/listinfo/amps
>
> _______________________________________________
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>
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