Andy and Tracey, possibly others,
C1,4,11 are all marked as 1 not 0u1 on both the cd and the components
list. The only difference is that 1 is a polyester 100v whereas 4 and 11 are
ceramics 50v. Unfortunately nowhere on the five sheets sent to me by the
vendor is there an issue or date reference. Still, with the components
I had to hand, it now works, if out of spec.
Thanks to all who took the trouble to send information, it is much
appreciated.
73, Brian
At 14:47 12/03/01 -0000, you wrote:
Well, my manual shows it in the parts list as 1uF 50V but since the
highest voltage in the RA1792 anywhere is 28V, and only 15V on the RF
AMP then I would have thought 25V would do.
However, the circuit diagram shows it as 0.1uF. As this coupling cap
is in a 50 ohm part of the circuit and the RA1792 is specified down to
150kHz (Yes, we all know it goes a lot lower !), 0.1uF gives a break
point at 32kHz so I guess 0.1uF is the correct value and the parts list
is wrong. C4, doing a similar function before the amp, is 0.1uF
Andy G4JNT
-----Original Message-----
From: tracey.gardner [mailto:[email protected]]
Sent: 2001-03-12 13:56
To: [email protected]
Subject: LF: Re: RE: Manual
Hi Andy
My 1792 manual shows C11 on the RF amp board to be 1uF 100v
whereas Brian's manual shows it to be 50v.
73s Tracey
> I have access to a RA1792 manual, is there any particualr
area / info
>you need ?
>Farnell do a radial 1uF ceramic capacitor - part no. 287-064.
>
> Andy G4JNT
>
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http://homepage.esoterica.pt/~brian
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