On Aug 10, 2005, at 7:03 AM, Dr. William J. Schmidt, II wrote:
> Ah yes! good choice!, but there is an absolute price constraint as
> well; 8171's are not in the same basic price class as the
> aforementioned tubes...
Good point, but, on occasion, a big stick is not without amusing uses.
>
> Sincerely,
>
> Dr. William J. Schmidt, II K9HZ
> Trustee of the North American QRO - Central Division Club - K9ZC
>
> Email: bill@wjschmidt.com
> WebPage: www.wjschmidt.com
>
> "If computers get too powerful, we can organize them into a committee;
> that will do them in." -- Bradley's Bromide
>
>
> ----- Original Message ----- From: "R. Measures" <r@somis.org>
> To: "Dr. William J. Schmidt, II" <bill@wjschmidt.com>
> Cc: <amps@contesting.com>
> Sent: Wednesday, August 10, 2005 8:47 AM
> Subject: Re: [Amps] TV sweep tubes and 6146s
>
>
>>
>> On Aug 10, 2005, at 6:16 AM, Dr. William J. Schmidt, II wrote:
>>
>>> I would think that using surplus tubes in the same basic price class
>>> (813's,
>>> 572B's, or 811A's), you would get a much higher "watt per dollar"
>>> return.
>>
>> The best watts per dollar tube is seemingly the 8171. They go for c.
>> $200 on eBay. That figures out to c. 12-cents per watt, including
>> shipping.
>>>
>>> Sincerely,
>>>
>>> Dr. William J. Schmidt, II K9HZ
>>> Trustee of the North American QRO - Central Division Club - K9ZC
>>>
>>> Email: bill@wjschmidt.com
>>> WebPage: www.wjschmidt.com
>>>
>>> "If computers get too powerful, we can organize them into a
>>> committee; that
>>> will do them in." -- Bradley's Bromide
>>>
>>>
>>> ----- Original Message -----
>>> From: "Tom Bowman" <wa3rey@comcast.net>
>>> To: <amps@contesting.com>
>>> Sent: Wednesday, August 10, 2005 5:54 AM
>>> Subject: [Amps] TV sweep tubes and 6146s
>>>
>>>
>>>> What is the reason amplifiers never seem to be designed using four
>>>> 6146s instead of TV sweep tubes like for example, four 6KD6s?
>>>> I must be missing something obvious here.
>>>>
>>>> I'm asking because I'm thinking of building a 400W or so PEP
>>>> amplifier
>>>> for 75 and 40 meters.
>>>>
>>>> Keeping cost really low is one of my goals here and I have several
>>>> good
>>>> 6146s in the junk box.
>>>>
>>>>
>>>> 73,
>>>>
>>>> Tom, WA3REY
>>>> _______________________________________________
>>>> 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
>>>
>>>
>>
>> Richard L. Measures, AG6K, 805.386.3734. www.somis.org
>
>
>
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|