[ARC5] Crawfishing: BC-375 on 30 Meters

[Ian Wilson]

Assuming you mean the 7984: great tube and sockets are readily
available with a little patience. I used one to put boots on a 40m
Rockmite (>35W out for 500mW in).

For some reason the 6146 leaves me cold although I have seen
the 7984 described as a Compactron 6146.

73, ian K3IMW


On Thu, Oct 31, 2013 at 3:51 AM, David Stinson <arc5 at ix.netcom.com> wrote:

> Well, I'll have to call "hold up" on the BC-375 on 30 meters.
> After doing several other "tinkers," I've been unable to replicate the
> success against thermal drift. The drift is back on 30 and 40 meters.
> Don't yet know why.
>
> The rig is still stable on 160 and 80.
> I'm going to focus on finding the best substitute tubes for now and get
> back to the 30-40 drift problem later.
> 813 will not fit in the available space (socket mods not allowed).
> 811/812 will fit but requires regulating the filament voltage down.
> Will order an 8 Amp DC-DC buck module for that.
> Going to try some 7894s, which are very cheap and have the right fil.
> rating.
> 73 DE Dave AB5S
>
>
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