TO-12 size metal can (Same size as the LH0033), but only 4 pins + a case-ground pin.
No info on the tube they are stored in. Here are the markings:
Testing all around the pins, pin to pin:
Ohm Meter: gets no reading at all.....(like an "open circuit")
Diode test: not diodes.
Capacitance: certain pins no reading, others about 10pf only.
My guess so far....nothing...it does nothing. :spin:
I've gone google crazy already....maybe I missed a string/order of the markings to search ?
Difficult because "SW303" brings up a lot of "switch #s", from schematics, or user manuals.
I was thinking "oscillator"..."SW303" (saw wave, sine wave, square wave) ??
But even an osc will show an ohm reading between pins.....so will a freq filter, no ? (I don't have any component filters to verify).
Clues....Hefty pins, and a case-ground pin.
So I'm thinking frequency signal related, high power.
I'm stumped.
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No info on the tube they are stored in. Here are the markings:
Quote:
|
PS S B SW303 8231A |
Testing all around the pins, pin to pin:
Ohm Meter: gets no reading at all.....(like an "open circuit")
Diode test: not diodes.
Capacitance: certain pins no reading, others about 10pf only.
My guess so far....nothing...it does nothing. :spin:
I've gone google crazy already....maybe I missed a string/order of the markings to search ?
Difficult because "SW303" brings up a lot of "switch #s", from schematics, or user manuals.
I was thinking "oscillator"..."SW303" (saw wave, sine wave, square wave) ??
But even an osc will show an ohm reading between pins.....so will a freq filter, no ? (I don't have any component filters to verify).
Clues....Hefty pins, and a case-ground pin.
So I'm thinking frequency signal related, high power.
I'm stumped.
