Wonderfull, that the 'old Lady'(Kenwood - TS-120S) is working like a charm, now! -100% succses! - I have to say to you, that I also have a 'Kenwood TS-130V' - wich is the follow-up radio, of the 'TS-120' ! But this radio (TS-130V) only 'generates' max. 10w output power! Mostly inside, the radio's are the same, from the hardware- side. (lacking the 100W PA transistors, of corse!) Only the more "'band's" they have. (all SW, excluding 160m, but plus the WARC-band's. Why they have done that, is and was, a miracle for me, ... ! Why no 160m, in this time periode?) I have 'bought' an additional 'CW-filter', with 280Hz, and also the small 'SSB- filter', with 1,8kHz, for my radio. And these filters are worth every cent I have spent, to buy them! It makes a real good 'CW- mashine' out of the 'only10W-TRX ', ... but also a beautiful 'SSB- radio', with good receiving 'additionales', to the stock TS-130. The 'only thing' you will missed, is a 'dsp' noise-reducing system, but this 'part' of equipment, was never aviable, at the 'legale time' you could buy such a rig! I used my kenwood TS-130, as a 'back-up TRX' and second (T)RX, during 'contests', and some other times, on an second antenna, searching for 'multipliers' on other bands, ... ! In that special way, I use my 'TS-130V', there is no negativ issue, only having 10W output. On CW, 10W is often 'more then enough' riding the waves, when the coditions are fair, ...! - Again,... sorry when I made some mistakes in English, it is not my native tounge. - 73 de Markus - db9pz - JN39fq - 3miles/5km east of LX -
There's nothing more satisfying than a good ham radio rig repair.
Glad you showed the temp effect on the curve tracer! 👍
So now the question is should you change all the other transistors of that type or not?
I definitely would..
Wonderfull, that the 'old Lady'(Kenwood - TS-120S) is working like a charm, now!
-100% succses! -
I have to say to you, that I also have a 'Kenwood TS-130V' - wich is the follow-up radio, of the 'TS-120' !
But this radio (TS-130V) only 'generates' max. 10w output power! Mostly inside, the radio's are the same, from the hardware- side.
(lacking the 100W PA transistors, of corse!)
Only the more "'band's" they have.
(all SW, excluding 160m, but plus the WARC-band's. Why they have done that, is and was, a miracle for me, ... ! Why no 160m, in this time periode?)
I have 'bought' an additional 'CW-filter', with 280Hz, and also the small 'SSB- filter', with 1,8kHz, for my radio.
And these filters are worth every cent I have spent, to buy them! It makes a real good 'CW- mashine' out of the 'only10W-TRX ', ... but also a beautiful 'SSB- radio', with good receiving 'additionales', to the stock TS-130.
The 'only thing' you will missed, is a 'dsp' noise-reducing system, but this 'part' of equipment, was never aviable, at the 'legale time' you could buy such a rig!
I used my kenwood TS-130, as a 'back-up TRX' and second (T)RX, during 'contests', and some other times, on an second antenna, searching for 'multipliers' on other bands, ... !
In that special way, I use my 'TS-130V', there is no negativ issue, only having 10W output.
On CW, 10W is often 'more then enough' riding the waves, when the coditions are fair, ...!
- Again,... sorry when I made some mistakes in English, it is not my native tounge. -
73 de Markus - db9pz - JN39fq - 3miles/5km east of LX -
Sadly, troubleshooting time vs something like a new IC 7300 is more and more questionable. Good for you to have seen this one through!!
Hmmm, as i understood all VCOs were not working properly and you changed only one transistor in one VCO and now all VCOs are working?
wow and peace be upon you sir from me
I think I can understand why the little component tester didn't consider that a transistor anymore.
Wait, aren't you going to demo it.😮
How about transmit?
Great work 👌👏💯👍
🙂👍