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Total 7 documents matching your query.

1. [CQ-Contest] SB-220 Switching help (score: 1): Author: n5nj@gte.net (Bob Naumann - N5NJ); Date: Sat Jan 26 08:11:22 2002; Can any of you tell me how much current the SB-220 t/r relay draws ? I know it's a 120v device, but need to know it's current draw. Thanks, N5NJ -- CQ-Contest on WWW: http://lists.contesting.com/_cq-; /archives//html/CQ-Contest/2002-01/msg00576.html (7,143 bytes)
2. [CQ-Contest] SB-220 Switching help (score: 1): Author: N5RP@pdq.net (Bob, N5RP); Date: Sat Jan 26 09:31:02 2002; ==> Measure the resistance of the coil, and, knowing the voltage, you can then calculate the current. An easy thing to do is: place a field collapse spike diode across the coil, and mounting the coil; /archives//html/CQ-Contest/2002-01/msg00578.html (8,043 bytes)
3. [CQ-Contest] SB-220 Switching help (score: 1): Author: k6ll@juno.com (Dave Hachadorian); Date: Sat Jan 26 10:09:15 2002; On Sat, 26 Jan 2002 08:11:22 -0600 "Bob Naumann - N5NJ" <n5nj@gte.net> writes: 25 ma. I plugged an ammeter into the relay jack. Dave Hachadorian, K6LL Yuma, AZ K6LL@juno.com -- CQ-Contest on WWW: htt; /archives//html/CQ-Contest/2002-01/msg00579.html (7,184 bytes)
4. [CQ-Contest] SB-220 Switching help (score: 1): Author: n5nj@gte.net (Bob Naumann - N5NJ); Date: Sat Jan 26 12:18:21 2002; Thanks Dave & Pete, and Bob, and others. I got the answer I needed! 73, N5NJ -- CQ-Contest on WWW: http://lists.contesting.com/_cq-contest/ Administrative requests: cq-contest-REQUEST@contesting.com; /archives//html/CQ-Contest/2002-01/msg00581.html (8,015 bytes)
5. [CQ-Contest] SB-220 Switching help (score: 1): Author: sdelling@facstaff.wisc.edu (Scott Ellington); Date: Mon Jan 28 12:00:07 2002; Beware!! The stock SB-220 does NOT have a catch diode across the relay coil. As a result, it can fry the switching transistor or relay in the transceiver. Make sure the diode is in place before hooki; /archives//html/CQ-Contest/2002-01/msg00617.html (7,416 bytes)
6. [CQ-Contest] SB-220 Switching help (score: 1): Author: W2CS@bellsouth.net (Gary J. Ferdinand); Date: Mon Jan 28 17:42:07 2002; Better yet, install Rich Measures' QSK mod and eliminate that relay entirely. Gary W2CS -- CQ-Contest on WWW: http://lists.contesting.com/_cq-contest/ Administrative requests: cq-contest-REQUEST@cont; /archives//html/CQ-Contest/2002-01/msg00625.html (8,299 bytes)
7. [CQ-Contest] SB-220 Switching help (score: 1): Author: W8JI@akorn.net (Tom Rauch); Date: Mon Jan 28 20:29:28 2002; It's been a few years since I designed for Heath, but as I recall that relay system sourced about 20 mA when pulled low. The problem is the voltage is high, and that voltage charges bypass capacitor; /archives//html/CQ-Contest/2002-01/msg00628.html (7,738 bytes)

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