[Hammarlund] Hello list - HC-10 and 6AU6s.

[David Wise]

The R-390A uses the 5749 (industrial 6BA6) for its VFO and BFO.

Dave Wise 

>-----Original Message-----
>From: hammarlund-bounces at mailman.qth.net 
>[mailto:hammarlund-bounces at mailman.qth.net] On Behalf Of 
>Kenneth G. Gordon
>Sent: Monday, April 02, 2012 12:39 PM
>To: Hammarlund at mailman.qth.net
>Subject: Re: [Hammarlund] Hello list - HC-10 and 6AU6s.
>
>The 6AU6 is routinely used in oscillators (especially VFOs), 
>while I don't 
>know that I have ever seen a 6BA6 used as such. Perhaps the 
>differences 
>are only inter-electrode capacitances and the transconductances under 
>identical conditions are the same, or close enough to it.
>