Radio Restoration Needs

Below is a list of vacuum tubes used in restored operational equipment aboard USS Cobia  that are needed as spares. If you have any of these tubes please consider donating them to USS Cobia to support the ongoing restoration of the radio and radar equipment. Used tubes but tested good are welcome!

Please send an email to museum@wisconsinmaritime.org with "vacuum tubes" in the subject line.

0C3, (VR105-30)

0D3, (VR150-30)

1N21(*)  (Solid state mixer diode - need any version but particularly the "F")

2A3

2J50

2K25

2X2

3B24

4PR60

5D21     (Urgently needed)

5FP7

5HP1

5R4

5U4

5Y3

5Z3

6A7

6AC7

6AG7

6AK5

6AQ5

6C6      (Urgently needed)

6D6

6E5      (Urgently needed)

6H6

6J5

6K6

6K7

6L6

6SA7

6SC7     (Urgently needed)

6SJ7

6SK7

6SN7

6SQ7

6V6

6X4

6X5

6Z4

12A6

12AU7

12H6

12SA7

12SG7

12SJ7

12SK7

12SQ7

41

47 Pilot Lamp

76

77

80

84

322 Pilot Lamp

703-A

705A

706AY,BY,CY

717A

721A

723A/B

724B

726B     (Urgently needed)

803

807

836

860

874

876

955

991  (NE-16)

1625

9005

38160

38205

38250

38803

 

Vacuum tubes used in restored operational equipment aboard USS Cobia.

1MC Alarm & Announcement System:

6C6

76

6D6

6L6

84

6Z4

5Z3

6SC7

6X5

 SJ-1 Radar:

1N21(*)

2X2

5D21

4PR60

5FP7

5HP1

705A

3B24

706AY,BY,CY

717A

721A

726B

836

5U4

6AC7

6AG7

6H6

6L6

6SN7

6SQ7

6V6

6X5

807

991

0C3

VR105-30

38205

0D3

VR150-30

38250

322 Pilot Lamp

47 Pilot Lamp

 ST Radar:

6SN7

6V6

6AK5

6H6

5D21

705A

723A/B

724B

2K25

2J50

RAK and RAL receivers:

6D6

41

5Z3

874

876

80

RBO receivers:

6K7

6J5

6SA7

6SK7

6H6

6J5

6SJ7

6K6

6E5

6X5

APR-1 Receiver:

9005

955

703-A

6E5

6AC7

6H6

6AG7

5Y3

TBL Transmitter:

860

38160

803

38803

2A3

TCS-12 Transmitter/Receiver:

12A6

1625

12SK7

12SA7

12SQ7

5R4

5U4

6X5

RBS-2 receiver:

12SG7

12H6

12SJ7

12SK7

12A6

5U4

6V6

LM-12 Frequency Meter:

76

77

6A7

991

AIM-215 Amplifier

6AQ5

6X4

12AU7