[Boatanchors] Hii FI amp as speech amp

[Barrie Smith]

----- Original Message ----- 
From: "Carl" <km1h at jeremy.mv.com>
To: "Barrie Smith" <barrie at centric.net>; "Boatanchors Mail List" 
<boatanchors at mailman.qth.net>
Sent: Sunday, November 02, 2008 6:04 PM
Subject: Re: [Boatanchors] Hii FI amp as speech amp


>I use a PP 6L6 Bogen PA amp to drive PP-250TH modulators Barrie. It came 
>with a 600 Ohm output which was perfect to drive the input xfmr on the 
>modulator deck which is in the rack.
>
> Using a 600 Ohms between units is a standard going back to the 30's.
>
> If you dont have that available you can change the xfmr.
>
> Carl
> KM1H

Thanks, Carl.

I have several amps around here, but nothing with 60 ohms out.  I even 
looked at my Eico HF-81, but it only goes to 32 ohms.

The manual for the HT-4B says that the input to the 2A3 grids is 500 ohms 
(?).

The only reason I'm attemting to do this is that I can't get audio, or 
modulation, from the BC-614E to the HT-4B, so I thought I'd try putting some 
audio directly into the transmitter.

Just want to get back on AM this winter!

73, Barrie, W7ALW
>
>
> ----- Original Message ----- 
> From: "Barrie Smith" <barrie at centric.net>
> To: "Boatanchors Mail List" <boatanchors at mailman.qth.net>
> Sent: Sunday, November 02, 2008 7:41 PM
> Subject: [Boatanchors] Hii FI amp as speech amp
>
>
> I know it's possible to use a Hi Fi amplifier to drive the modulation in 
> the BC-610, but Googling for half a day has not yielded results.
>
> Any information on that subject greatly appreciated.
>
> 73, Barrie, W7ALW
>
>
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