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THE AM BULLETIN BOARD => Technical Forum => Topic started by: Edward Cain on April 12, 2014, 09:39:27 PM



Title: TM for T-195B
Post by: Edward Cain on April 12, 2014, 09:39:27 PM
I'm trying to locate TM 11-5820-335-35 which is the manual for the T-195, T-195A and T-195B series.

I've had no luck with LOGSA but don't know if it's due to my ignorance of the site or they just don't have it available.

If anyone can help in directing me to a source for download I'd surely appreciate it.

Thanks,
Ed/KJ4JST


Title: Re: TM for T-195B
Post by: N8ETQ on April 12, 2014, 10:53:56 PM


   Check for variants of the GRC-19 sets. Not sure which one used
the T-195B. The "GRC-19" monicker seems to pull more hits than
T-195...

GL

?Dan

http://www.militaryradio.com/manuals/GRC-19/TM%2011-5820-295-35%20AN-GRC-19%20Radio%20Set%20-%20Field%20and%20Depot%20Maint.%20%281960%29.pdf


Title: Re: TM for T-195B
Post by: Edward Cain on April 13, 2014, 05:11:25 AM
Thank you, Dan. Your link helps a great deal. It provides info on the B variant that I don't have. The manual I have was published before the B existed.

I am still looking for the more comprehensive version and cannot find a downloadable version, even with the GRC-19 search term.

I do note that Fair Radio has it available in hard copy at $69. I would prefer a download ;D


Title: Re: TM for T-195B
Post by: N8ETQ on April 13, 2014, 08:06:39 AM


   Your Welcome Ed,

        I had a plain T-195 and it worked pretty well,
I recall getting one heck of an RF burn in my left ear
one Field Day off a set of Military Cans while the thing
tried to tune the 40m dipole to 75..  One of those
things you only let happen once!!

       Mine had the dynamotor HV supply, worked great
I thought the only diff. was that epoxy sealed HV Inverter
in the "B".  I still have a mount for it and a R-392
in the garage, You can have it if you need it. I'm
in CLE.

73

/Dan


Title: Re: TM for T-195B
Post by: K9PNP on April 13, 2014, 03:00:06 PM
Try this one:

http://bama.edebris.com/manuals/military/t195/

The T-195 was a good rig.  Considering we used to load a 15 to 20 ft whip down to 4 Mc it functioned rather well.  Problem we always had was not the RF portion of the station, it was the FSK part.  Never will forgive another young troop for not hooking up the ground connections one time.  I probably have a copy of the TM around here someplace if you need an original hard copy.  Not sure if it covers the A and B series or not.


Title: Re: TM for T-195B
Post by: Edward Cain on April 19, 2014, 07:54:24 AM
Thanks again Dan. I would take you up on your very generous offer of the mount but my wife has me on a short leash when it comes to boat anchor equipment.

Mitch, thanks to you, also, for the bama link.

I will be starting a new thread concerning constructing a power supply for this Tx with parts that I already have. Hope some of you can give me advice.

Ed/KJ4JST


Title: Re: TM for T-195B
Post by: SV1PCZ on June 21, 2014, 04:55:55 AM
https://www.dropbox.com/s/3dm7zpg1j8i016e/TM%2011-5820-335-35.pdf (https://www.dropbox.com/s/3dm7zpg1j8i016e/TM%2011-5820-335-35.pdf)
 :)


Title: Re: TM for T-195B
Post by: Edward Cain on June 21, 2014, 08:38:27 PM
Thank you 'PCZ. Exactly what I was looking for.

Ed/KJ4JST


Title: Re: TM for T-195B
Post by: N4zed on June 22, 2014, 04:25:57 AM
Here is TM11-806.  SV1PCZ beat me to the TM5820-335-35.

https://dl.dropboxusercontent.com/u/51086952/T-195/T195-maint%20%20OCR.pdf (https://dl.dropboxusercontent.com/u/51086952/T-195/T195-maint%20%20OCR.pdf)

Here is a Hi Res Schematic:

https://dl.dropboxusercontent.com/u/51086952/T-195/T195-schem.PDF (https://dl.dropboxusercontent.com/u/51086952/T-195/T195-schem.PDF)

Ken
N4zed


Title: Re: TM for T-195B
Post by: SV1PCZ on June 22, 2014, 06:08:29 AM
You are welcome.

You will also need the TM 11-5820-335-35P (repair parts list): https://www.dropbox.com/s/dfgmuzy4tax0lng/TM%2011-5820-335-35P.pdf (https://www.dropbox.com/s/dfgmuzy4tax0lng/TM%2011-5820-335-35P.pdf)

I could use some help finding the operations manual TM 11-5820-335-10 (335 not 295).

73's


Title: Re: TM for T-195B
Post by: WD5JKO on June 22, 2014, 09:14:46 AM

  Looking at one of the schematics posted makes me ponder with respect for those that designed, developed, and manufactured a transmitter such as the T-195. I think of the disciplines that were commonplace by the designers of that era. Are we better off today with the engineers being cranked out by the universities where writing software, DSP code dominate, and just a small group develop hardware? Think about SDR radio's of today. Nobody seem to discuss the hardware, or present schematics, and such. It's all about software. Yet there still is audio I/O, and the RF chain which are still analog. Some of these areas are ripe for tweaks, such as decreasing IMD, or evening out RF strip gain, band to band. The stuff from Flex, of which I own one, does not even come with schematics. Could anyone back in the day imagine buying a ham rig where the schematics were "proprietary"? What happens when the aging hardware designers die off?

-end hijack..

Jim
Wd5JKO


Title: Re: TM for T-195B
Post by: Edward Cain on June 22, 2014, 09:53:32 AM
Thank you both, Ken and 'PCZ. Info that I didn't have.

'PCZ,
   I wish I could help with the manual you are looking for, but I didn't know it existed til you mentioned it.

Ed/KJ4JST


Title: Re: TM for T-195B
Post by: Pete, WA2CWA on June 22, 2014, 03:28:58 PM

  Looking at one of the schematics posted makes me ponder with respect for those that designed, developed, and manufactured a transmitter such as the T-195. I think of the disciplines that were commonplace by the designers of that era. Are we better off today with the engineers being cranked out by the universities where writing software, DSP code dominate, and just a small group develop hardware? Think about SDR radio's of today. Nobody seem to discuss the hardware, or present schematics, and such. It's all about software. Yet there still is audio I/O, and the RF chain which are still analog. Some of these areas are ripe for tweaks, such as decreasing IMD, or evening out RF strip gain, band to band. The stuff from Flex, of which I own one, does not even come with schematics. Could anyone back in the day imagine buying a ham rig where the schematics were "proprietary"? What happens when the aging hardware designers die off?

-end hijack..

Jim
Wd5JKO

Service information(including schematics) for the Flex SDR-1000 is available. Service manuals are also available for the Flex 5000 and 1500. Schematics are available for the Flex 3000. There were a number of Kenwood, Yaesu, and Icom models introduced over the years where usable (readable without a high power magnifying glass) schematics only came with an optional service manual. Makes sense not to add all this technical fluff to an operating manual when maybe the majority of the users have no need for it.


Title: Re: TM for T-195B
Post by: SV1PCZ on June 22, 2014, 05:45:28 PM
Ed, it's ok.

I've been looking for the 335-35 for years and at some point I almost thought it didn't exist!
Fortunately I found an original hard copy a few months ago and here it is :)

The 335-10 is also an elusive TM. I'll keep looking for it...


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