Need interface cable or instructions on building one
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I built this for a Henry amp to Kenwood TS-850 and TS-870. There's a pin on the "DIN" socket that has 12 volts (power supply voltage) on transmit. Pin 7 in my case. Use that and ground. Pin 7 (in my case) has a maximum current draw of 10mA. This circuit draws just under 4mA on transmit. You need to verify the pin number and maximum current draw for your radio. My Henry amp has a spike of over 200 volts when TX relay disengages. That's why that darlington was chosen. If you build this you can test it with 12 volts DC and verify current draw etc before you connect to your radio and amp. Bob. W4JFA On Sun, Aug 7, 2022, 11:34 AM Wayne Carpenter KN2Z 21-215F @minicowman via <mwcarpe=[email protected]> wrote: I have a Kenwood TS-590sg and recently acquired a Dentron GLA-1000 amp.? Needing to interface these two devices. So.. if someone has a cable that would work.. or a connection diagram I could use to build my own.. That would be pretty awesome. |
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Awesome! Thank you Bob!? I can certainly give that a try.. and I might even have both of those semiconductor items on-hand.. If not, I know where to find some. As I mentioned, I have the manuals/schematics for both the radio and the amp so verifying pin IDs shouldn't be an issue.? I'll post here when I have it ready to try out.? Thanks again.
73 |
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Here's a simpler interface. Like it says in the text, you can choose other transistors to handle the voltage and current. Here's the link... Let me know how it goes. Bob. W4JFA On Sun, Aug 7, 2022, 11:34 AM Wayne Carpenter KN2Z 21-215F @minicowman via <mwcarpe=[email protected]> wrote: I have a Kenwood TS-590sg and recently acquired a Dentron GLA-1000 amp.? Needing to interface these two devices. So.. if someone has a cable that would work.. or a connection diagram I could use to build my own.. That would be pretty awesome. |
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On Mon, Aug 8, 2022 at 08:38 AM, Bob wrote:
Let me know how it goes.Thanks Bob. Yes, I'll post my results here when I get there.? I checked my supply of Darlington transistors yesterday and apparently I've been harder on the stash than I thought. I have some TIP120s in the bin but those top out at something like 60 volts. I just went ahead and ordered some higher value transistors.. Give me a good excuse to restock some of the empty parts bins. As my dear father used to say, "more for the hay racks when my time comes"..? ? |
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Yes indeed. Usually extras don't add to the shipping cost so stock up! Bob. W4JFA On Tue, Aug 9, 2022, 8:39 AM Wayne Carpenter KN2Z 21-215F @minicowman via <mwcarpe=[email protected]> wrote: On Mon, Aug 8, 2022 at 08:38 AM, Bob wrote: |
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Great! Glad to hear it! Bob. W4JFA On Sun, Aug 28, 2022, 10:14 PM Wayne Carpenter KN2Z 21-215 @minicowman via <mwcarpe=[email protected]> wrote: On Sun, Aug 7, 2022 at 01:10 PM, Bob wrote: |
Wayne Carpenter KN2Z @minicowman
Bob
