Lot (5) Raytheon CK6088 subminiature vacuum tube very rare

Description

ONE lot of FIVE
Raytheon subminiature vacuum tubes.
The "great white hope" of the vacuum tube industry in the
early 1960's were subminiature
tubes working on relatively
low voltages. These promptly got shot out of the saddle by
transistors and later by integrated circuits that included
transistors by the dozens, thousands, or millions.
Offered here is a Raytheon CK6088 subminiature pentode
removed from equipment. While it is believed workable and
guaranteed usable, we offer it primarily as a unique collectible
of the last gasp of a dying breed. This part number is
extremely hard to find and is
not
listed by most vacuum
tube suppliers.
CK6088 by Raytheon is a five pin miniature pentode having
a 1.25 volt 20 ma direct filament, a normal grid bias of -1.2
volts, a screen of 45 volts and a plate of 45 volts. Plate
resistance is 0.75 meg and mutual conductance is 600
micromhos.
Unit measures a scant 1-1/2 inches high. We provide
flying leads that have been cropped to fit a five pin
miniature socket.
Data sheets available online.
No foreign bidders.
US-only buyer
to pay shipping charges of .85. We suggest combining
this item with our other eBay offerings for shipping savings.
Add sales tax.
Located at
85552.
Or visit our tinaja online resources. Please contact
us if
you need more info or additional resources.
sr ck608801.j 239