None. It was a joke. Wonder how many recognize the tube numbers like 6161,
1616 or the RCA tubes mentioned earlier.
73
Bill wa4lav
It does not help to be dyslexic when shopping for tubes.
The 1616 is a vacuum diode with a graphite plate.
The most useless power tube around. Like a 250R and others.
73
Bill wa4lav
At 06:45 AM 7/31/2012 -0400, you wrote:
>How much gain do you expect out of a diode?
>
>Carl
>KM1H
>
>
>----- Original Message ----- From: "Bill Fuqua" <wlfuqu00@uky.edu>
>To: "Carl" <km1h@jeremy.mv.com>; "Bill, W6WRT" <dezrat1242@yahoo.com>;
>"AMPS" <amps@contesting.com>
>Sent: Tuesday, July 31, 2012 2:34 AM
>Subject: Re: [Amps] Another interesting tube
>
>
>>I always thought the 6161 was a neat tube. A bit low on gain but a lot more
>>gain than a 1616.
>>73
>>Bill wa4lav
>>
>>
>>At 10:02 PM 7/30/2012 -0400, Carl wrote:
>>>There is nothing wrong with a lot of old tech tubes.
>>>
>>>I have several old fashioned 7213's and a couple of the 7214 pulse version
>>>and always wanted to build something around them.
>>>For now they are just spares for military cavities retuned to 222 and 432 .
>>>
>>>Many moons ago in the mid 60's I used 6161's that were given to me NIB when
>>>a CH 56 transmitter was scrapped, I was the tower ape at that site doing on
>>>call moonlighting when needed as I lived about 5 miles away. Thats when I
>>>was taught about cavity and flat plate designs and had them as high as 1296
>>>with decent efficiency considering the frequency
>>>
>>>Carl
>>>KM1H
>>>
>>>
>>>
>>>----- Original Message -----
>>>From: "Bill, W6WRT" <dezrat1242@yahoo.com>
>>>To: "AMPS" <amps@contesting.com>
>>>Sent: Monday, July 30, 2012 9:16 PM
>>>Subject: Re: [Amps] Another interesting tube
>>>
>>>
>>> > ORIGINAL MESSAGE:
>>> > On Mon, 30 Jul 2012 20:55:19 -0400, you wrote:
>>> >
>>> >>Glass instead of ceramic and only a 150C seal limit means lots of
>>> air >>when
>>> >>trying for 1500W.
>>> >>That really is an ancient technology tube and is only good to 6M.
>>> >
>>> > REPLY:
>>> > All true, but the tube is so cute! :-)
>>> >
>>> > Seriously though, I would run two in parallel if going for 1500
>>> watts. > And
>>> > lots
>>> > of air.
>>> >
>>> > And spend the money I saved on antennas.
>>> >
>>> > 73, Bill W6WRT
>>> > _______________________________________________
>>> > Amps mailing list
>>> > Amps@contesting.com
>>> > http://lists.contesting.com/mailman/listinfo/amps
>>> >
>>> >
>>> > -----
>>> > No virus found in this message.
>>> > Checked by AVG - www.avg.com
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>>> >
>>>
>>>_______________________________________________
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>>>Amps@contesting.com
>>>http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>
>>-----
>>No virus found in this message.
>>Checked by AVG - www.avg.com
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