These days you might have a custom 24 bit A/D converter at the front end of an
HF receiver for [the modern day equivalent equivalent of WW2 monitoring
stations] that digitises the entire HF spectrum in one go.
Bet that costs more than the modern, equivalent of 7/6
Just old enough to remember ancient money system :-(
Andy G4JNT
On Tuesday, February 22, 2005 9:31 PM, captbrian
[SMTP:[email protected]] wrote:
I retreat in confusion but at 7/6d each it is not something I would have
contemplated.
Bryan
----- Original Message -----
From: John Rabson <[email protected]>
To: <[email protected]>
Sent: Tuesday, February 22, 2005 9:17 PM
Subject: Re[2]: LF: Off Topic Ft101zd
It has been known for people to use an 807 as a first RF stage, and I
believe that at World War II monitoring stations it was used as in broadband
amplifiers to feed a substantial number of HROs and AR88s.
73
John G3PAI
*********** REPLY SEPARATOR ***********
On 22/02/2005 at 17:52 captbrian wrote:
>Hardly an 807 (beam power tetrode): more like a EF50 (high gain
>pentode) but let's not get into this old man's talk ;-)) or we'll be into
>the 'young lads today don't know anything ' syndrome and the truth is that
>..there's more in a 706iig than I could have got into two 6 foot
>racks... Mind you it doesn't keep the shack so warm in this (UK) weather
>
>Bryan
> ----- Original Message -----
> From: [email protected]
> To: [email protected]
> Sent: Tuesday, February 22, 2005 5:30 PM
> Subject: Re: LF: Off Topic Ft101zd
>
>
> Wrong Brian !
>
> A real amateur wouldn't have put a bulb there in the first place. The
>input inductor would have been 10g enam copper (ex-surplus txformer) and
>the Ist RF would have been an 807 !
>
> 73 de Pat g4gvw !
|
