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I bought a Tennelec Memoryscan MS-2 long ago. I used it with a discone antenna on the roof. One day a lightning storm passed through and afterwards the MS-2 would not receive on the VHF band (I live in Southern California where these storms are uncommon). I troubleshot the problem and found that there was a 2N4124 transistor in the circuit directly after the antenna input, and it had been damaged by the lightning storm. I replaced it with a 2N3904, which is very similar but slightly higher voltage, and very easy to obtain. It again began to work on the VHF band. So the MS-2 had an Achilles heel in its design, which may not have affected it if an indoor antenna was used, but would probably cause this problem to occur with an outdoor antenna. Any questions can be sent to my yahoo email account acmefixer. --208.127.16.197 (talk) 15:44, 12 November 2012 (UTC)[reply]

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+I bought a Tennelec Memoryscan MS-2 long ago.  I used it with a discone antenna on the roof.  One day a lightning storm passed through and afterwards the MS-2 would not receive on the VHF band (I live in Southern California where these storms are uncommon).  I troubleshot the problem and found that there was a 2N4124 transistor in the circuit directly after the antenna input, and it had been damaged by the lightning storm.  I replaced it with a 2N3904, which is very similar but slightly higher voltage, and very easy to obtain.  It again began to work on the VHF band.  So the MS-2 had an Achilles heel in its design, which may not have affected it if an indoor antenna was used, but would probably cause this problem to occur with an outdoor antenna.  Any questions can be sent to my yahoo email account acmefixer.
+--[[Special:Contributions/208.127.16.197|208.127.16.197]] ([[User talk:208.127.16.197|talk]]) 15:44, 12 November 2012 (UTC)