Tubes (Valves) & Schematics
Please remember that we have 1000s of Tubes (Valves)
Some Used & Some NEW
These boxes are FULL & we have several more boxes not shown in this photo.
List of Tubes (valves), by request
5687, 12AU7s & 12AX7s
All tubes (valves) are Tested & Guaranteed Good, Not DOA
5687 NEW in Original box
5687 Tung-Sol NOS, Original box in Fair condition.

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This has the Black Plates(Anodes) & a
Top Mounted, ''D'' Shaped Getter.

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Has a Date Code of 32 DN3. Sorry, I am not familiar with this code

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Test of pin 1 = Plate(Anode)

Test reads 69+
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Test of pin 9 = Plate(Anode)

Test reads 69+
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12AU7As Used
12AU7 RCA, used in replacement box

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This has the Grey Plates(Anodes)

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This has the Top Mounted,
''D'' Shaped Getter

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Test of pin 1 of Tube(valve)

Test reads 69
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Test of pin 6 of Tube(valve)

Test reads 70+
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12AU7A GE, used in replacement box

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Famous ''GE Dots'' below the type #

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This has the Black Plates(Anodes)

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This has the Top Mounted Round Getter

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Test of pin 1 of Tube(valve)

Test reads 69+
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Test of pin 6 of Tube(valve)

Test reads 70
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12AX7As Used
12AX7A Sylvania, used in replacement box

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This has the Grey Plates(Anodes)
& the Top Mounted, Round Getter

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The Date Code on this appears to be be

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Test of pin 1 of Tube(valve)

Test reads 70
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Test of pin 6 of Tube(valve)

Test reads 70
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12AX7A Hammond, used in replacement box

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This has the Grey Plates(Anodes)
& the Top Mounted, Round Getter

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Test of pin 1 of Tube(valve)

Test reads 68
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Test of pin 6 of Tube(valve)

Test reads 68
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Please remember, our tester tends to read a bit low.
A reading of 65 to 75 is normal for New Tubes (Valves).
Schematics by Sams
We are Sold Out of our Riders
However I still has some Riders Indexes.

We have Many Sams & Several Indexes
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Many Folders per Set, 10 Sets per Book
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You may email us.
Click on mailbox.
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