Comments on: GS36B in AM-6154 ITT amplifier delivers solid 550 Watts @ 144 MHz http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/ Seductive serendipity / Verleidende serendipiteit Fri, 30 Jul 2010 22:05:26 +0000 http://wordpress.org/?v=2.7 hourly 1 By: A.Sua TORTU http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12354 A.Sua TORTU Wed, 31 Mar 2010 20:41:28 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12354 Hello Remco, I maked all modify for 144Mhz , so I removed orignal directional coupler and low pass filter .. I looked all pictures on the index of/pa6nl adress but I can find only Bird Wattmeter on the pictures, how can I measure SWR ? What are you useing for SWR measure ? any external SWR meter or internal hight power directional coupler ? I want to be ON THE AIR ... 73 de ta2ad A. Sua TORTU Hello Remco,
I maked all modify for 144Mhz ,
so I removed orignal directional coupler and low pass filter ..

I looked all pictures on the index of/pa6nl adress
but I can find only Bird Wattmeter on the pictures,
how can I measure SWR ?
What are you useing for SWR measure ? any external SWR meter or internal hight power directional coupler ?
I want to be ON THE AIR …
73 de ta2ad A. Sua TORTU

]]> By: Remco http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12353 Remco Sat, 12 Dec 2009 21:20:46 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12353 Hello Bert, Yes, the GS-36B uses same filament voltage. The only thing required is to make the grid voltage (-Vg1) less negative, see the datasheets. Regards, Remco Hello Bert,

Yes, the GS-36B uses same filament voltage.

The only thing required is to make the grid voltage (-Vg1) less negative, see the datasheets.

Regards,
Remco

]]> By: Bert http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12350 Bert Thu, 10 Dec 2009 03:11:10 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12350 Hi Remco, What did you do about the fillement voltage ? when you used the GS-36b is it ok at 6.3 volts ? 73 Bert WA4VUT Hi Remco,
What did you do about the fillement voltage ?
when you used the GS-36b is it ok at 6.3 volts ?
73
Bert WA4VUT

]]> By: VHF Marine Radio Guy http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12349 VHF Marine Radio Guy Mon, 02 Nov 2009 23:25:32 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12349 Amazing how solid these older units compared to our units nowdays. They were certainly made to withstand time. Great project. Amazing how solid these older units compared to our units nowdays. They were certainly made to withstand time. Great project.

]]> By: Remco http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12341 Remco Sat, 26 Sep 2009 07:04:56 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12341 Hello Aziz, There are three fuses on the front panel. Two located in the bottom left part, and one in the neighborhood of the high voltage switch. Bottom left corner: left 3A (F1), right 15A (F2). Hi voltage switch: 10A (F3) The bulbs are neon bulbs. I added the manual at the end of the original posting. 73, Remco Hello Aziz,

There are three fuses on the front panel. Two located in the bottom left part, and one in the neighborhood of the high voltage switch.

Bottom left corner: left 3A (F1), right 15A (F2).
Hi voltage switch: 10A (F3)

The bulbs are neon bulbs.

I added the manual at the end of the original posting.

73, Remco

]]> By: A.Sua TORTU http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12340 A.Sua TORTU Thu, 24 Sep 2009 20:30:54 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12340 Dear om I have AM-6154 VHF Linear amplifier , but I dont now fuse value , and bulp value front side of linear .. İf you know value of 3 fuses and 2 bulp , I can use my linear for MS and EME , I am waiting your answer , 73 de TA2AD Aziz Sua TORTU Dear om I have AM-6154 VHF Linear amplifier , but I dont now fuse value , and bulp value front side of linear ..

İf you know value of 3 fuses and 2 bulp , I can use my linear for MS and EME ,

I am waiting your answer , 73 de TA2AD

Aziz Sua TORTU

]]> By: Jordan VE6ZT http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12336 Jordan VE6ZT Sun, 16 Aug 2009 22:45:35 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12336 If you're not drawing idle current, chances are you have the bias set beyond cutoff and are about to enter Class C.... You either have that or an inactive or dead tube, assuming you've verified your voltages AT THE SOCKET and anode connection, or at least check the continuity and resistances inline and between ckts..... I run 2x 36Bs @2100V 370ScV -34Grid bias and at 480Ma the amp will give me ~ 700W @ 432.070Mhz....that's with 5W drive...If I crank the drive to 12W the amp will draw~ 650mA Ip and provide ~1kW... If you’re not drawing idle current, chances are you have the bias set beyond cutoff and are about to enter Class C…. You either have that or an inactive or dead tube, assuming you’ve verified your voltages AT THE SOCKET and anode connection, or at least check the continuity and resistances inline and between ckts…..
I run 2x 36Bs @2100V 370ScV -34Grid bias and at 480Ma the amp will give me ~ 700W @ 432.070Mhz….that’s with 5W drive…If I crank the drive to 12W the amp will draw~ 650mA Ip and provide ~1kW…

]]> By: Jo Groeger http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12335 Jo Groeger Sun, 02 Aug 2009 11:24:23 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12335 Remco, I have followed your project with great interest. I have plugged two different GS-36Bs into my am-6154, running -40V on g1, have shortened out one of the 100K resistors as per your advice but do not get any idling current and only about 400W out maximum. My original 8930 gives me at least 500 Watts out. Any suggestions? Grateful your help Jo Remco,

I have followed your project with great interest.

I have plugged two different GS-36Bs into my am-6154, running -40V on g1, have shortened out one of the 100K resistors as per your advice but do not get any idling current and only about 400W out maximum. My original 8930 gives me at least 500 Watts out. Any suggestions?

Grateful your help

Jo

]]> By: Thomas http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12279 Thomas Thu, 22 Jan 2009 04:35:18 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12279 That is an interesting project, indeed. Does it full work and everything? That is an interesting project, indeed. Does it full work and everything?

]]> By: Amp Fan http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/comment-page-1/#comment-12153 Amp Fan Fri, 04 Jul 2008 05:44:29 +0000 http://rembl.org/index.php/2006/12/31/gs36b-in-am-6154-itt-amplifier/#comment-12153 Well, you definitely have more patience than I do, but I am impressed with your work. Seems like quite the interesting project. Well, you definitely have more patience than I do, but I am impressed with your work. Seems like quite the interesting project.

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