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[Amps] Ameritron band switch repair

To: Amps@contesting.com
Subject: [Amps] Ameritron band switch repair
From: George <at6c@bellsouth.net>
Date: Sun, 03 Feb 2013 16:07:15 -0600
List-post: <amps@contesting.com">mailto:amps@contesting.com>
A friend bought a used AL 1500 (from about 1999) and when we opened it up to install the transformer we noticed that one of the straps from the coil to the band switch was not connected to the band switch. The solder that was there was globed up and did not flow out properly. I thought it would be an easy repair to just re-heat the joint and flow the solder. Turned out that the solder would not flow out with the heat from a 100w gun. The excess solder would not melt into the existing solder on the band switch or on the strap. I tried adding a little more rosin core solder but still the same problem, no solder flow. Did Ameritron use something besides 60/40 rosin core solder on the band switch? Looks like I will have to remove all the solder down to bare metal and clean the lug on the switch in order to re-solder this connection. The strap shouldn't be problem to clean but the lug on the band switch is very thin and I hate to work on it too much with a file.

There is a green wire coming out of the input circuit enclosure and it looks like it was solder to a lug near the band switch but is now just hanging there. Was this there to ground out the 10M input circuit to comply with FCC rules?

73,
George
W2GS
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