Re: Kenwood T-1090S: Radio of the future
...and it doesn't exist.
Thomas Webb
WA9AFM/5
PIO
Oklahoma City Autopatch Association
On 10/21/2023 5:30 PM, Donald Hellen
wrote:
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Re: Kenwood T-1090S: Radio of the future
Make sure and watch to the end. :) Tim KC1TWR
On Sat, Oct 21, 2023 at 6:30?PM Donald Hellen < donhellen@...> wrote: Something to enjoy . . .
Kenwood T-1090S: Radio of the future
A bit pricey, but a nice radio!
:-)
Donald KX8K
----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM? ?/g/Ham-Antennas
/g/HamRadioHelp? ? /g/Baofeng
/g/CHIRP?
--
Tim Rodgers KC1TWR Cell/Text: 860-460-7360 "Train as you expect to work because you will work as you have trained."
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Kenwood T-1090S: Radio of the future
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Kenwood TH-G71A speaker/mic
I would like to get a speaker/mic for my TH-G71A. I saw on eBay some selling that were for both Kenwood and Baofeng HTs. I have a working speaker/mic for my Baofeng UV-5R HT, but it only works as an external speaker on my TH-G71A.
What I wondered is whether the older Kenwood HTs used different microphone wiring on the older HTs?
It's possible that this old HT has a bad connection at the speaker/mic jacks, too, so that's why I'm asking about this. If they didn't use different wiring back then, I won't bother trying to find a speaker/mic that works with it.
One other thing I need to ask, and it's something I get confused about, is what do you call the SMA connector on this radio? Is it a male or a female connector? I need to get an adapter to allow me to use it on my J-pole in my living room (hidden behind the curtains). Hopefully the J-pole will allow me to make the local repeater. If not, I'll put up a mini-beam just for living room 2M chats using this HT. I like it better than my newer Baofeng. It's much easier to program from the front panel. In fact, I gave up trying to program it from the front panel and just use CHIRP instead.
Thanks in advance!!!
Donald KX8K
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Re: hARD TO FIND COMPONENTS
Interesting. Thanks for?the info. Always more to learn. 73, Bob W4JFA?
Hi Bob,
Thanks for the reply .The falt is within the Regulator. Jeff NZ2S sent me a "Mod Sheet" The Mod was written by DL2CE.
The regulator? "will only turn on when cold? the problem is probably caused by self oscillationinternal within? the chip"
?Changing the the capacitance of C6. Cures the problem!
Here is the link to the Mod.??? ??
Hope this helps,
73,
Richard G0ILN
On 19 July 2023 at 15:13 Bob <W4JFABob@...> wrote:
If I understand correctly, the problem was a capacitor, not the regulator IC?
Bob W4JFA?
Hi ,
Just an update on my Kenwood TM255 2Mtr multi-mode.
I could not get hold of the Regulator chip L78LR05-FA. So I used the get-around suggested by Jeff NZ2S.? I have never tried to solder SMD parts before . I had to resolder the regulator as I had removed it thinking I could buy a new one!
I found a new 22uF? Tantal (Reccomended was 5-15uF). In my spares and fitted it. WOW it worked to my surprise!
So thank you? Jeff,Bob ,Eric and any one I have missed out.
73
Richard G0ILN
On 10 July 2023 at 13:16 JeffBanke <jeffbanke@...> wrote:
Glad to help, and good luck with it!
Jeff - NZ2S
On Mon, Jul 10, 2023 at 3:02?AM Richard Putnam < kairos1@...> wrote:
Hi Jeff,
Many thanks for the work you have put in to help me out.
The get around seems to be the best bet.
The problem as explained in the write up is exactly what my problem is. so I will try the capacitor mod.
I wish now I hadn't taken the old regulator off the board. I hope I haven't damaged it!
Thanks again,
Richard
On 09 July 2023 at 16:01 JeffBanke <jeffbanke@...> wrote:
Digikey has alternative names for the device
| ATTRIBUTE |
DESCRIPTION |
| Other Names |
ONSONSL78LR05B-FA-E
2156-L78LR05B-FA-E
|
These folks seem to have some:
Here is a mod specific to that regulator and radio that you might look into
--
Jeff - NZ2S
?
--
Jeff - NZ2S
?
?
?
?
|
Re: hARD TO FIND COMPONENTS
Hi Bob,
Thanks for the reply .The falt is within the Regulator. Jeff NZ2S sent me a "Mod Sheet" The Mod was written by DL2CE.
The regulator? "will only turn on when cold? the problem is probably caused by self oscillationinternal within? the chip"
?Changing the the capacitance of C6. Cures the problem!
Here is the link to the Mod.??? ??
Hope this helps,
73,
Richard G0ILN
On 19 July 2023 at 15:13 Bob <W4JFABob@...> wrote:
If I understand correctly, the problem was a capacitor, not the regulator IC?
Bob W4JFA?
Hi ,
Just an update on my Kenwood TM255 2Mtr multi-mode.
I could not get hold of the Regulator chip L78LR05-FA. So I used the get-around suggested by Jeff NZ2S.? I have never tried to solder SMD parts before . I had to resolder the regulator as I had removed it thinking I could buy a new one!
I found a new 22uF? Tantal (Reccomended was 5-15uF). In my spares and fitted it. WOW it worked to my surprise!
So thank you? Jeff,Bob ,Eric and any one I have missed out.
73
Richard G0ILN
On 10 July 2023 at 13:16 JeffBanke <jeffbanke@...> wrote:
Glad to help, and good luck with it!
Jeff - NZ2S
On Mon, Jul 10, 2023 at 3:02?AM Richard Putnam < kairos1@...> wrote:
Hi Jeff,
Many thanks for the work you have put in to help me out.
The get around seems to be the best bet.
The problem as explained in the write up is exactly what my problem is. so I will try the capacitor mod.
I wish now I hadn't taken the old regulator off the board. I hope I haven't damaged it!
Thanks again,
Richard
On 09 July 2023 at 16:01 JeffBanke <jeffbanke@...> wrote:
Digikey has alternative names for the device
| ATTRIBUTE |
DESCRIPTION |
| Other Names |
ONSONSL78LR05B-FA-E
2156-L78LR05B-FA-E
|
These folks seem to have some:
Here is a mod specific to that regulator and radio that you might look into
--
Jeff - NZ2S
?
--
Jeff - NZ2S
?
?
?
?
|
Re: hARD TO FIND COMPONENTS
If I understand correctly, the problem was a capacitor, not the regulator IC? Bob W4JFA?
Hi ,
Just an update on my Kenwood TM255 2Mtr multi-mode.
I could not get hold of the Regulator chip L78LR05-FA. So I used the get-around suggested by Jeff NZ2S.? I have never tried to solder SMD parts before . I had to resolder the regulator as I had removed it thinking I could buy a new one!
I found a new 22uF? Tantal (Reccomended was 5-15uF). In my spares and fitted it. WOW it worked to my surprise!
So thank you? Jeff,Bob ,Eric and any one I have missed out.
73
Richard G0ILN
On 10 July 2023 at 13:16 JeffBanke <jeffbanke@...> wrote:
Glad to help, and good luck with it!
Jeff - NZ2S
On Mon, Jul 10, 2023 at 3:02?AM Richard Putnam < kairos1@...> wrote:
Hi Jeff,
Many thanks for the work you have put in to help me out.
The get around seems to be the best bet.
The problem as explained in the write up is exactly what my problem is. so I will try the capacitor mod.
I wish now I hadn't taken the old regulator off the board. I hope I haven't damaged it!
Thanks again,
Richard
On 09 July 2023 at 16:01 JeffBanke <jeffbanke@...> wrote:
Digikey has alternative names for the device
| ATTRIBUTE |
DESCRIPTION |
| Other Names |
ONSONSL78LR05B-FA-E
2156-L78LR05B-FA-E
|
These folks seem to have some:
Here is a mod specific to that regulator and radio that you might look into
--
Jeff - NZ2S
?
--
Jeff - NZ2S
?
|
Re: hARD TO FIND COMPONENTS
You are most welcome Richard, glad to be able to help !
--
Jeff - NZ2S
|
Re: hARD TO FIND COMPONENTS
Hi ,
Just an update on my Kenwood TM255 2Mtr multi-mode.
I could not get hold of the Regulator chip L78LR05-FA. So I used the get-around suggested by Jeff NZ2S.? I have never tried to solder SMD parts before . I had to resolder the regulator as I had removed it thinking I could buy a new one!
I found a new 22uF? Tantal (Reccomended was 5-15uF). In my spares and fitted it. WOW it worked to my surprise!
So thank you? Jeff,Bob ,Eric and any one I have missed out.
73
Richard G0ILN
On 10 July 2023 at 13:16 JeffBanke <jeffbanke@...> wrote:
Glad to help, and good luck with it!
Jeff - NZ2S
On Mon, Jul 10, 2023 at 3:02?AM Richard Putnam < kairos1@...> wrote:
Hi Jeff,
Many thanks for the work you have put in to help me out.
The get around seems to be the best bet.
The problem as explained in the write up is exactly what my problem is. so I will try the capacitor mod.
I wish now I hadn't taken the old regulator off the board. I hope I haven't damaged it!
Thanks again,
Richard
On 09 July 2023 at 16:01 JeffBanke <jeffbanke@...> wrote:
Digikey has alternative names for the device
| ATTRIBUTE |
DESCRIPTION |
| Other Names |
ONSONSL78LR05B-FA-E
2156-L78LR05B-FA-E
|
These folks seem to have some:
Here is a mod specific to that regulator and radio that you might look into
--
Jeff - NZ2S
?
--
Jeff - NZ2S
?
|
Re: hARD TO FIND COMPONENTS
So it is a low current 7805 surface mount with a Reset pin. Does the radio actually use the reset pin?
|
Re: Vintage HT Batteries and charger Question
Would this work? Battery and charger. TH-75. The A isn't specified but I would think a suffix wouldn't mean a design change to the battery shell. Donald KX8K On Fri, 14 Jul 2023 05:51:35 -0400, "Arthur Boehm" <adboehm1@...> wrote: i do not have the oem chargers...the battery for the TH-75A is a 12v 1800ma
large 4" battery to match the case...thats my main issue...the th315 i
found alot of basic batteries and wall chargers....
On Thu, Jul 13, 2023, 10:05 PM Donald Hellen <donhellen@...>
wrote:
Arthur . . .
On Thu, 13 Jul 2023 13:59:32 -0700, "Arthur Boehm" <adboehm1@...>
wrote:
Does anyone have any info on other charger Models that would work Do you have the original chargers and they just don't work at all, or do
you not
have the OEM chargers?
I ask because you might be able to fix a broken charger. If you need a
charger,
eBay might have one. You can set up a persistent (saved) search for
something on
eBay and if you make the search restrictive enough, you will only get
notified
when one appears on eBay and not when other stuff does. (Don't set up a
saved
search for battery charger. Be more specific, and the notifications will
be,
too.)
Donald KX8K
----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM /g/Ham-Antennas
/g/HamRadioHelp /g/Baofeng
/g/CHIRP
---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas/g/HamRadioHelp /g/Baofeng/g/CHIRP
|
Re: Vintage HT Batteries and charger Question
i do not have the oem chargers...the battery for the TH-75A is a 12v 1800ma large? 4" battery to match the case...thats my main issue...the th315 i found alot of basic batteries and wall chargers....
On Thu, Jul 13, 2023, 10:05 PM Donald Hellen < donhellen@...> wrote: Arthur . . .
On Thu, 13 Jul 2023 13:59:32 -0700, "Arthur Boehm" <adboehm1@...> wrote:
>Does anyone have any info on other charger Models that would work
Do you have the original chargers and they just don't work at all, or do you not
have the OEM chargers?
I ask because you might be able to fix a broken charger. If you need a charger,
eBay might have one. You can set up a persistent (saved) search for something on
eBay and if you make the search restrictive enough, you will only get notified
when one appears on eBay and not when other stuff does. (Don't set up a saved
search for battery charger. Be more specific, and the notifications will be,
too.)
Donald KX8K
----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM? ?/g/Ham-Antennas
/g/HamRadioHelp? ? /g/Baofeng
/g/CHIRP?
|
Re: Vintage HT Batteries and charger Question
Arthur . . . On Thu, 13 Jul 2023 13:59:32 -0700, "Arthur Boehm" <adboehm1@...> wrote: Does anyone have any info on other charger Models that would work Do you have the original chargers and they just don't work at all, or do you not have the OEM chargers? I ask because you might be able to fix a broken charger. If you need a charger, eBay might have one. You can set up a persistent (saved) search for something on eBay and if you make the search restrictive enough, you will only get notified when one appears on eBay and not when other stuff does. (Don't set up a saved search for battery charger. Be more specific, and the notifications will be, too.) Donald KX8K ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas/g/HamRadioHelp /g/Baofeng/g/CHIRP
|
Re: Vintage HT Batteries and charger Question
Are you near Batteries Plus? Or Batteries and Bulbs? Bob W4JFA?
On Thu, Jul 13, 2023, 5:29 PM Arthur Boehm < adboehm1@...> wrote: Good Afternoon. I have a TH-75a and a TH-315 HT that I've had for decades and decided to clean up, replace internal battery, repair BNC connector and bring back to life (especially the 75a dual band).?
The th315 has a PB-2 (twist lock) NiCD battery, and th75 has the PB-7 (knb-7) slide lock NiMH battery. I have called all over for batteries and chargers...(they have the battery, not a charger), OR out of stock with no time of availability on both.?
I have tried W&W manufacturing (that's where i bought the battery for th75a? back in the day), to no avail. (no response to email or call back from VM multiple times).
Does anyone have any info on other charger Models that would work...or other possibilities that i can try to bring back these wonderful radios from my College days??
Thank you all for your time!!!
73,
Art N3GCD?
|
Vintage HT Batteries and charger Question
Good Afternoon. I have a TH-75a and a TH-315 HT that I've had for decades and decided to clean up, replace internal battery, repair BNC connector and bring back to life (especially the 75a dual band).?
The th315 has a PB-2 (twist lock) NiCD battery, and th75 has the PB-7 (knb-7) slide lock NiMH battery. I have called all over for batteries and chargers...(they have the battery, not a charger), OR out of stock with no time of availability on both.?
I have tried W&W manufacturing (that's where i bought the battery for th75a? back in the day), to no avail. (no response to email or call back from VM multiple times).
Does anyone have any info on other charger Models that would work...or other possibilities that i can try to bring back these wonderful radios from my College days??
Thank you all for your time!!!
73,
Art N3GCD?
|
Re: hARD TO FIND COMPONENTS
Glad to help, and good luck with it!
Jeff - NZ2S
On Mon, Jul 10, 2023 at 3:02?AM Richard Putnam < kairos1@...> wrote:
Hi Jeff,
Many thanks for the work you have put in to help me out.
The get around seems to be the best bet.
The problem as explained in the write up is exactly what my problem is. so I will try the capacitor mod.
I wish now I hadn't taken the old regulator off the board. I hope I haven't damaged it!
Thanks again,
Richard
On 09 July 2023 at 16:01 JeffBanke <jeffbanke@...> wrote:
Digikey has alternative names for the device
| ATTRIBUTE |
DESCRIPTION |
| Other Names |
ONSONSL78LR05B-FA-E
2156-L78LR05B-FA-E
|
These folks seem to have some:
Here is a mod specific to that regulator and radio that you might look into
--
Jeff - NZ2S
?
--
Jeff - NZ2S
|
Re: hARD TO FIND COMPONENTS
Hi Jeff,
Many thanks for the work you have put in to help me out.
The get around seems to be the best bet.
The problem as explained in the write up is exactly what my problem is. so I will try the capacitor mod.
I wish now I hadn't taken the old regulator off the board. I hope I haven't damaged it!
Thanks again,
Richard
On 09 July 2023 at 16:01 JeffBanke <jeffbanke@...> wrote:
Digikey has alternative names for the device
| ATTRIBUTE |
DESCRIPTION |
| Other Names |
ONSONSL78LR05B-FA-E
2156-L78LR05B-FA-E
|
These folks seem to have some:
Here is a mod specific to that regulator and radio that you might look into
--
Jeff - NZ2S
?
|
Re: hARD TO FIND COMPONENTS
hi Bob,
That looks interesting. it might take a day or two to check it out. I will get back to you and let you know how I get on.
73
Richard
On 10 July 2023 at 00:04 Bob <W4JFABob@...> wrote:
I found this as a possible substitution. You'll have to check datasheets.
Bob? W4JFA
hi?
I have a kenwood TM-255 two metre multi-mode. It will not switch on.? I have traced the fault to a regulator L78LR05B-FA. Farnell can supply them but only in large quantities
RS does not seem to stock the part.
has anyone any idea where I might get such a regulator. I have trawled the internet without any luck.
Richard G0ILN.
?
?
?
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Re: hARD TO FIND COMPONENTS
Hi Eric,
thanks for looking for me. The Regulator pictured is only three pin my one is five pin but you are right I can buy just the one.
73,
Richard G0ILN.
On 09 July 2023 at 16:01 Eric van de Weyer <groups.io@...> wrote:
Hi Richard,
?
A quick Google search brought up Mouser as having plenty in stock. You can order in 1 off quantities and you could buy 10 for about 4 quid.
?
See
?
73¡.Eric VK2VE.
?
?
hi?
I have a kenwood TM-255 two metre multi-mode. It will not switch on.? I have traced the fault to a regulator L78LR05B-FA. Farnell can supply them but only in large quantities
RS does not seem to stock the part.
has anyone any idea where I might get such a regulator. I have trawled the internet without any luck.
Richard G0ILN.
?
?
|
Re: hARD TO FIND COMPONENTS
Hi Richard, ? A quick Google search brought up Mouser as having plenty in stock. You can order in 1 off quantities and you could buy 10 for about 4 quid. ? See ? 73¡.Eric VK2VE. ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of R.Putnam via groups.io
Sent: Sunday, July 9, 2023 8:06 PM
To: [email protected]
Subject: [Kenwood-Amateur-Radio] hARD TO FIND COMPONENTS? hi?
I have a kenwood TM-255 two metre multi-mode. It will not switch on.? I have traced the fault to a regulator L78LR05B-FA. Farnell can supply them but only in large quantities
RS does not seem to stock the part.
has anyone any idea where I might get such a regulator. I have trawled the internet without any luck.
Richard G0ILN.
|
Tim Rodgers KC1TWR
Bob
JeffBanke