Re: [Elecraft] K2 and Kenwood TL-120 lonear

2006-04-12 Thread Bob Towers

 
 I don't actually own one Bob but I have taken a look at the cct.  I 
 would think that the MK line is probably (Manual Keying) by applying an 
 earth at this point.  RL is keying the relay via a transistor switch, 
 probably for those radios that have a solid state keying line that can't 
 handle the relay current directly.  I have enclosed a copy of the TS130V 
 manual below which covers linear connecting.  It could have done with a 
 diagram for clarity, but the text indicates that pin 4 of the radio goes 
 to ground on TX.  This fits with the MK line on pin 4 of the linear.
 
 Hope this helps,
 Trev
 
Yes it does!

I've blown up the appropriate part of the TL-120 circuit diagram... The RL line 
goes to the base of Q10, which is the switching transistor. It's possible that 
connecting MK to RL will cause Q10 to conduct and effectively earth RL-1 and 
switch it on. I think for safety's sake, I'll put a resistor between MK and RL: 
I don't want to blow Q10. Eathing MK (pin 4) will switch RL-1 on, too

I'll have a trial run - MK to earth - and then see if I can do something with 
RL via COM1/CTS/RTS + optoisolator, which would be a much more elegant solution.

73

Bob
2M0KDZ
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Re: [Elecraft] K2 and Kenwood TL-120 lonear

2006-04-11 Thread Bob Towers
On Tue, 11 Apr 2006 05:37:23 -0700
Bob Nielsen [EMAIL PROTECTED] wrote:

 http:// 
 members.fortunecity.com/xe1bef/kenwood-manuals.htm

Many thanks for the lead: it points to mods.dk. I'm up to my download limit 
with them already!

I'm pretty sure it's the 120V or 130V manuals I need. They're the 10 watt 
versions and have the 7-pin DIN connector for the linear. The S versions don't 
because they're already 100 watts.

73

Bob
2M0KDZ
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Re: [Elecraft] K2 and Kenwood TL-120 lonear

2006-04-11 Thread Bob Towers
Bob,

Much appreciated...

I'll see if I can get the contrast up (or grab the bit of the PDF I want and 
have a go at pasting it into Paint Shop Pro or something).

73

Bob
2M0KDZ
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Re: [Elecraft] K2 and Kenwood TL-120 lonear

2006-04-11 Thread Trevor Day

Bob, I will email you a pdf of the TL-120 manual
Check your email

Trev G3ZYY

In message [EMAIL PROTECTED], Bob Towers 
[EMAIL PROTECTED] writes

On Tue, 11 Apr 2006 05:37:23 -0700
Bob Nielsen [EMAIL PROTECTED] wrote:


http://
members.fortunecity.com/xe1bef/kenwood-manuals.htm


Many thanks for the lead: it points to mods.dk. I'm up to my download 
limit with them already!


I'm pretty sure it's the 120V or 130V manuals I need. They're the 10 
watt versions and have the 7-pin DIN connector for the linear. The S 
versions don't because they're already 100 watts.


73

Bob
2M0KDZ
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--
Trevor Day
UKSMG #217
www.uksmg.org

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