[Boatanchors] [FLBOATANCHORS] WTD: Sub-miniature tubes

[David C. Hallam]

The ones I used were CK something and gas tubes.  My transmitter was a 
HB using a single tube on 27.255 mc as I remember.  Control was rudder 
only with an escapement and wound up rubber band for power. I had one 
plane with an engine and another was a glider.

David
KW4DH

On 6/4/2014 10:36 PM, David Harmon wrote:
> The 1AG4 and 6008 are wire lead tubes and both were used in early R/C
> operation in the receivers....mainly super regen.
> I still have a couple of the Babcock receivers I used back in the mid
> 50's....they actually worked!
> Both have 1.5vdc filament and used 30v on the plate.
> The 6008 has half the fil current pf the 1AG4.
> They are about 3/4" long and 3/16" thick.
> They are not the so-called 'gas' tubes...these are vacuum tubes.
>
>
> 73
>
> David Harmon
> K6XYZ
> Sperry, OK
>
> -----Original Message-----
> From: Boatanchors [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of
> David C. Hallam
> Sent: Wednesday, June 4, 2014 8:38 PM
> To: FLBOATANCHORS at yahoogroups.com; boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] [FLBOATANCHORS] WTD: Sub-miniature tubes
>
> I don't have any, but weren't these the tubes used in the WWII proximity
> fused ship board anti aircraft shells?  I also think I used them in RC model
> airplane receivers I built back in the early 1950's.
>
> David
> KW3DH
>
> On 6/4/2014 11:40 AM, bcarling at cfl.rr.com [FLBOATANCHORS] wrote:
>> I could use a couple of subminiature, wire lead tubes like CK5672 or
>> CK6612 or other subminiature "pencil" tubes. Prefer something I can
>> make into a low power Pierce xtal osc. stage.
>>
>> I have plenty of other useful tubes to trade or will buy.
>>
>> Thanks - Bry, AF4K
>>
>> Brian Carling, Radio AF4K
>>
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