Vacuuum tube digital circuits (50 year rule)

[Stan Barr]

Hi,

Gordon JC Pearce said:
> Roy J. Tellason wrote:
> > On Thursday 31 August 2006 04:27 am, Stan Barr wrote:
> >> Roy J. Tellason said:
> >>> Anybody having any vacuum tubes they don't want,  I might be interested. 
> >>> I can't offer much of anything for them,  but if they're gonna get
> >>> tossed...
> >> Just for informational purposes:  12AU7s (and 12AX7 and 12AT7) are still
> >> available new.  You probably won't like the price, but they're still in
> >> production - us electric guitar players use them,
> > 
> > Along with 6L6 and maybe 5U4 and some other numbers for output tubes,  no 
> > doubt.  To get that "Marshall sound"...   :-)
> 
> Well if it's the "Marshall sound" it should be ECC83s and EL34s, not 
> this American stuff.
> 
> Gordon (drifting offtopic, sorry Jay)

Or in my case 7025, 12AT7 and 6L6 - Fender Twin...

Getting back to the topic, I've run 12AX7s on 12.6 volt anode supply
which eases power supply requirements at the expense of gain, but I've
not tried that with digital circuits, perhaps an experimental flip-flop
is in order.


-- 
Cheers,
Stan Barr  stanb at dial.pipex.com

The future was never like this!