Vacuuum tube digital circuits (50 year rule)

[Tim Shoppa]

Gordon JC Pearce <gordon at gjcp.net> wrote:
> 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 as a benchmark, if you're buying random new-old-stock (still new in boxes)
tubes in quantity, do not expect to pay more than a few pennies per tube
(and even then that might be too much!) Random used tubes should be available
for free.

> >> 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.

All those tubes are way above the random price guides I attempt to
categorize above, and you can easily hit many tens of dollars
or sometimes hundreds of dollars each, with extremely wide variance 
on brand and subdetails of construction.

Tim.