[R-390] R-390A Audio hiss

Sat, 30 Aug 2003 19:55:28 +0000

IF gain set incorrectly?  John

John Page K4KWM
Hollow State since 1953
(ex W8PKU,N8BLB,NA8O)

>From: "Bill Smith" <[email protected]>
>To: <[email protected]>, <[email protected]>
>Subject: Re: [R-390] R-390A Audio hiss
>Date: Sat, 30 Aug 2003 10:54:28 -0700
>
>Gassy tube, noisy resistor, leaky capacitor?  Haven't noticed hiss from the
>receivers here.
>
>73 de Bill, AB6MT
>[email protected]
>
>----- Original Message -----
>From: [email protected]
>To: [email protected]
>Sent: Saturday, August 30, 2003 8:04 AM
>Subject: [R-390] R-390A Audio hiss
>
>
>Having just become the proud owner of an R-390A. I
>have a question to pose.  Having used an R-392 for
>a while, 600 ohm audio/xfmr to 8 ohm Heath SB-600
>spkr with excellent audio(using minimal RF gain). I
>find that using the same spkr/xfmr from either the
>"local" or "line" outputs on the R-390, I have a very
>objectionable hiss from the spkr constantly.  Can
>anyone tell me what I'm doing wrong?? Joe, K0AHD
>
>
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