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Author Topic: odd military tubes  (Read 2639 times)
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N2DTS
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« on: September 14, 2013, 08:12:16 PM »
I have a bag o tubes I pulled out of some radar type thing that was sitting at Warren Grove range where the military aircraft do target practice (A 10's and such).

Odd stuff, but if anyone needs these, they are free.

5654 sharp cutoff pentode

5670 medium mu twin triode

5687 medium mu twin triode

5751 high mu twin triode

5842 medium mu triode

6201 (12at7?)

6ah6

6688 sharp cutoff pentode.

Bag of about 50 or 60 tubes...
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N8ETQ
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« Reply #1 on: September 14, 2013, 09:23:57 PM »
5751 high mu twin triode  = 12AX7
 5654 tube or 6AK5-W

/Dan
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Pete, WA2CWA
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« Reply #2 on: September 14, 2013, 10:12:15 PM »
5842 medium mu triode is equivalent to the WECo 417A.   (big bucks) W2AZL converters used  them. Hey, I got two of those converters.

6201 excellent replacement for 12AT7 used  in balanced modulators (SB-10, etc.) - much higher degree of carrier null.

5654 excellent replacement for a 6AK5

5687 industrial version of the ECC832 / 12DW7

5751 same specs as the 12AU7WA
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
N2DTS
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« Reply #3 on: September 14, 2013, 10:49:06 PM »
Thanks for the info!
What is big bucks?
Enough to quit my job and retire?

I got them for free, never used any, but I did get a bunch of other tubes with normal numbers and a bunch of the good JAN? tube shields.



Quote from: Pete, WA2CWA on September 14, 2013, 10:12:15 PM
5842 medium mu triode is equivalent to the WECo 417A.   (big bucks) W2AZL converters used  them. Hey, I got two of those converters.

6201 excellent replacement for 12AT7 used  in balanced modulators (SB-10, etc.) - much higher degree of carrier null.

5654 excellent replacement for a 6AK5

5687 industrial version of the ECC832 / 12DW7

5751 same specs as the 12AU7WA
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Pete, WA2CWA
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« Reply #4 on: September 14, 2013, 11:08:13 PM »
Probably not, since my reference was ebay, and you know the craziness that goes on there.

Quote from: N2DTS on September 14, 2013, 10:49:06 PM
Thanks for the info!
What is big bucks?
Enough to quit my job and retire?

I got them for free, never used any, but I did get a bunch of other tubes with normal numbers and a bunch of the good JAN? tube shields.



Quote from: Pete, WA2CWA on September 14, 2013, 10:12:15 PM
5842 medium mu triode is equivalent to the WECo 417A.   (big bucks) W2AZL converters used  them. Hey, I got two of those converters.

6201 excellent replacement for 12AT7 used  in balanced modulators (SB-10, etc.) - much higher degree of carrier null.

5654 excellent replacement for a 6AK5

5687 industrial version of the ECC832 / 12DW7

5751 same specs as the 12AU7WA
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
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« Reply #5 on: September 15, 2013, 12:30:15 AM »
I picked up some 417A WE about 50 years ago..  I have two or three of the W2AZL converters.  I haven't yet used any of either.  But I 'm making plans for my next lifetime Grin

Fred
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