[BC] BC-1G Advice

[Gary Glaenzer]

I've seen at least two with 230-V primaries on the HV xfmr

G


----- Original Message ----- 
From: "Bob Groome" <bobgroome at yahoo.com>
To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
Sent: Thursday, April 03, 2008 10:37 AM
Subject: Re: [BC] BC-1G Advice


> A quick note on the 1G, no taps on the plate
> transformer. It was designed for 208 V AC. Most
> folks have more than that. Hence, why I suggested
> a higher plate voltage might be expected. I have
> notes from many 1T, 1G and tube 1H boxes that was
> the basis for the sample values in my earlier
> post. These were from way back when I used to
> travel for Gates and work on all sorts of
> trannys. His 1G will work well with the slightly
> higher plate volts.
>
> Also no taps on the FIL transformer and it's easy
> to get bad tube life with more than the 6.3 on
> the 807's.
> Easy to fix with a rheostat in series with the
> FIL xfmr's primary, though.
>
> Like the earlier post on the shunt in the ATU (a
> Gates 44) for best power transfer. His line is 52
> ohms. A bridge can set the input of the ATU to 52
> ohms and let the transmitter tune for best match
> into the 52 ohm line.
>
> Bob
>
> --- Larry Taft <ltaft at charter.net> wrote:
>
> > Hi Gang,
> >
> > I'm a bit late to this goat roping but if any
> > sort of lightning hit
> > was involved I would recalibrate all the meter
> > circuits including the
> > RF amp meter.
>
>
>
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