At 08:38 PM 10/16/2000 -0400, you wrote:
>An 814 was built along the same lines as an 807. Hallicrafters used them as
>finals in the HT-6 and HT-9 transmitters. Without checking I believe that
>they are pentodes, like a miniature 813. The would dissipate about 90 watts
>with about 1500 VDC on the plates in Class C telephony , (AM). They were the
>pre-6146's of the '40's. Nice tube. Long live "Hollow-State Technology".
>Mike(y)
>W3SLK
>
Yep, Mike's got it! The 814 is very similar in size and shape to an 813;
perhaps a quarter inch taller and just slightly smaller diameter than the
813. It is a pentode, or tetrode with beam forming plates. Curves can be
found in RCA's TT-3.
Phil
>----- Original Message -----
>From: Tom Rauch <w8ji@contesting.com>
>To: <amps@contesting.com>; Phil (VA3UX) <phil@vaxxine.com>
>Sent: Monday, October 16, 2000 7:06 PM
>Subject: Re: [AMPS] 814 AMP
>
>
>>
>> > Anybody ever build a 'nostalgia' amp using one or two or more 814's ?
>> > Something for sideband or CW (Not AM).
>> >
>> > I seem to keep turning up these old tubes.
>>
>> What is an 814?
>> 73, Tom W8JI
>> w8ji@contesting.com
>>
>> --
>> FAQ on WWW: http://www.contesting.com/FAQ/amps
>> Submissions: amps@contesting.com
>> Administrative requests: amps-REQUEST@contesting.com
>> Problems: owner-amps@contesting.com
>>
>
>
>
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|