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Pills

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BigBopper
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Pills

Post by BigBopper » Friday, 09 March 2007, 7:13 AM

Many questions about pills, they are the transistor in an amp, looks like an aspirin, look at the picture you'll see a white transistor"PILL"(1446)

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Post by stickman » Friday, 09 March 2007, 8:29 AM


NICE PICTURE BIGBOPPER! RM ITALY'S ARE FINE LITTLE AMPS! FOR THE MONEY THEY ARE TO BEAT
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Texas star linear

Post by lonewolf » Sunday, 18 March 2007, 7:45 AM

What kinda pills are in the texas star dx1200 and how many.

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Post by Ind Bellybutton » Sunday, 18 March 2007, 7:54 AM

looks like 8x2SC2290's...
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Post by dilligaf » Monday, 16 July 2007, 9:41 AM

is it possible to change this pill for a bigger one?????????


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Post by SMOK-N-GUN 211 » Saturday, 04 August 2007, 15:48 PM

I was told By a tech YES!

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Post by BigBopper » Saturday, 04 August 2007, 16:12 PM

yea it can be done, but there other items that have to be changed in the amp also

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Post by BOOTYMONSTER » Saturday, 04 August 2007, 16:55 PM

when i was a teen there was a guy in town that put a 460 engine in a pinto and drove from the back seat . that lil thing would fly . many things are possible . as far as being practical , cost effective or worth the trouble .........? its like beauty.......its in the eye of the beholder .
if everybody wanted the same thing there would only be one mic,one radio,one amp and one antenna . this hobby has many options for many opinions .



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Post by BIOHARZARD » Wednesday, 03 October 2007, 17:46 PM


Hello and for your question about your DX1200 Texas Star ?
I would have to say this ..
Yes it CAN be done...
Is it worth the money for the few extra watts you are going to get ?? NO
The whole amp has to be completly reconfigured basically and in my opinion its not worth it...
It would be cheaper to just sell your amp as is and get a DX1600 and you will save alot of money
Just my 2 cents 8)

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Post by North Texas Mudduck » Thursday, 22 November 2007, 7:44 AM

BOOTYMONSTER wrote:when i was a teen there was a guy in town that put a 460 engine in a pinto and drove from the back seat . that lil thing would fly . many things are possible . as far as being practical , cost effective or worth the trouble .........? its like beauty.......its in the eye of the beholder .
know a guy across town took a 460 mounted on a ford courier frame then set a Volkswagen body on top looked just like a Volkswagen but didn't run like a Volkswagen.
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Post by caveman73 » Thursday, 22 November 2007, 8:58 AM

So that's what a pill is. I have been wondering what you guys are talking about. I am kinda new to cbs and have been reading forums and learning all I can about cbs. I also see people talking about amps called a 2 pill, 4 pill and so on, my question is in that picture is that consider a 1 pill. What is that pill for? Happy Thanksgiving!

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Post by Foxhunter » Thursday, 22 May 2008, 17:41 PM

Glad they cleared that up, all that talk of "pills"----it had to have you wondering I guess. Transistors are solid-state "devices" similar in some ways to diodes. Transistors make good amplifiers and they provide the amp "gain" that's needed. There are many many types of transistors each with different specifications and uses. Most of the amps being talked about here on the forum are usually of the solid-state (SS) type amplifiers. An alternative to these are the "tube-type" which use vacuum tubes.

As usual I hope anything I posted may've helped

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Post by Slvbeard » Friday, 27 June 2008, 5:36 AM

So how do you tell if they are bad or "blown"?

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Post by MoJo » Friday, 27 June 2008, 9:01 AM

Slvbeard wrote:So how do you tell if they are bad or "blown"?
Some times they will have a brown spot on them like a burn.

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Post by Pillpopper » Friday, 27 June 2008, 11:48 AM

Slvbeard wrote:So how do you tell if they are bad or "blown"?
Most of the time you wont see anything on the pill, but if your lucky you will see a burnt 10ohm resistor next to the blown pill. Double check the pill just make sure it is bad, (these things aren't cheap). You will have to take the pill completely out and test it like you would a diode. If you get all readings on all prongs minus only one=bad, no reading= toasted.

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Post by Runt » Friday, 27 June 2008, 13:07 PM

What's this "Mosfet" final I'm hearing about? Is this the new rage??

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Post by MoJo » Friday, 27 June 2008, 19:08 PM

Runt wrote:What's this "Mosfet" final I'm hearing about? Is this the new rage??
Not really the rage. The 2030 is the "drop in1969 and 2312 finals as they are being phased out and it is a mosfet rather than a transistor.

I have heard of people getting big numbers out of them.

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Post by MoJo » Friday, 27 June 2008, 19:12 PM

askificare wrote:
Runt wrote:What's this "Mosfet" final I'm hearing about? Is this the new rage??
Not really the rage. The 2030 is the "drop in replacement" for the 1969 and 2312 finals as they are being phased out and it is a mosfet rather than a transistor.

I have heard of people getting big numbers out of them.
There fixed it.

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Post by Runt » Saturday, 28 June 2008, 16:33 PM

Ok, My RCI 6900F150 has 1ea. C2166 and 1ea. C2312. I would gather that these ARE NOT mosfet, but finals that are being replaced in newer models?

If this is so, is it worth the extra $$$ to have mine replaced, if it is even possible?

Thanks

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Post by zman350 » Friday, 31 October 2008, 14:48 PM

the 520 and 2030 are not just drop in and get more power,actually you will get less,unless u get the bias drivers for them and do some more modifications.

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Re: Pills

Post by Fletch57 » Sunday, 22 November 2009, 7:20 AM

Can anyone tell me what these pills are, and give me some information on them....like output of watts and amp draw?


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I cannot find any information about these pills on the internet, and I am not familiar with and I do not know how to read the numbers printed on them. I do know that the small emblem at the top of the pill that looks like an "M" is the Motorola symbol. I just want to know what I have, there are two pills in this amp. It is a Siltronix model SLM-100.

Please help!

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Re: Pills

Post by 909 wis » Monday, 30 November 2009, 6:29 AM

before buying a amp, if your not familiiar with them. buy from a cb shop you trust or recommended. before I buy a use amp I open it up and look to see if anything looks burnt or blown, another thing you can do is smell the amp. if it smells like burnt toast from a week ago chances are it's fried. just my suggestions.
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Re: Pills

Post by Fletch57 » Monday, 30 November 2009, 8:08 AM

909 wis wrote:before buying a amp, if your not familiiar with them. buy from a cb shop you trust or recommended. before I buy a use amp I open it up and look to see if anything looks burnt or blown, another thing you can do is smell the amp. if it smells like burnt toast from a week ago chances are it's fried. just my suggestions.

Hi, thanks for the information. I also do the same thing before purchasing an amp, making sure it's ok!

I'm using the amp, it works great! I'm just curious and want to know the technical specifications regarding the transistors/pills.

Click the pictures to enlarge them.

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Re: Pills

Post by Fletch57 » Sunday, 03 January 2010, 19:19 PM

Does anyone in this forum know or have any information about these pills?

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Re: Pills

Post by Fletch57 » Tuesday, 19 January 2010, 19:51 PM

Just a little more information about these pills.

I am getting about 150 watts output from the amp with a 4 watt input.

It will swing over 200 watts.

I hope someone will see the pictures and can lead me to more information about them.

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Re: Pills

Post by ny221 8pill » Saturday, 06 March 2010, 17:13 PM

more then likly they are a old version of a motorolla 1446 transistor.. or pill as people like to call them, my guess is that because you said it has the m on it, and it looks and sounds like you are pretty on the money of the power output of a m 1446. and i think but not sure a 1446 can draw around 4 to 6 amps per pill, all depends how hard you drive the amp. that being a 2 x 1446 it should really not pull more then 15 amps. good luck hope that helps you. a old tech could prob look at them and tell u for sure... ny 221 northeast corner.. u can catch me on the bowl ch 6 with the *Censored* dropped down haha

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Re: Pills

Post by goldeneagle » Friday, 13 August 2010, 11:06 AM

HOW MANY WATTS CAN YOU GET OUT OF A 2PILLS 2 2990

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Re: Pills

Post by str8stroke » Saturday, 14 August 2010, 14:13 PM

goldeneagle wrote:HOW MANY WATTS CAN YOU GET OUT OF A 2PILLS 2 2990
Tricky question! Guess you have some variables..how they are volted & how they are driven? poss swr?? RMS, or swing watts?
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Re: Pills

Post by ESieb » Wednesday, 08 December 2010, 14:55 PM

A pair of 2290's will give you anywhere from 180 to 250 W out depending on drive power and DC voltage. Typically with 13.8VDC and let's say 4W drive, you will get around 200 W out. 14.VDC will give you even more.


goldeneagle wrote:HOW MANY WATTS CAN YOU GET OUT OF A 2PILLS 2 2990
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Re: Pills

Post by The-kid » Monday, 10 January 2011, 18:59 PM

hey is there a way to test the pill's in the box with out takeing them out ?

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Re: Pills

Post by Rooster173 » Saturday, 02 April 2011, 19:52 PM

Nice pic never had a whole lot of luck with the rm italy or KLV they were tube eater either way nice way to answer a question pic explains it all

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Re: Pills

Post by Fatman0247 » Monday, 25 April 2011, 12:09 PM

I'll tell ya what, i had a KL400 in my old truck modified for 11m use, it never did me wrong, if anyone is looking to get rid of one, let me know!
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Re: Pills

Post by silvereagle1 » Wednesday, 17 July 2013, 13:36 PM

Does the newer kl 400 amps have the newer green circuit board?? The green boards seem to be better to me. My kl 200 has the new board compared to the old ones. (Ready to use)I believe on the old tan boards you had to remove a chip to use on 11 meters. I want the kl 400 but I want to make sure it has been redesigned like all the others. Wood like to see it in the blue color as well. Does anyone know if they are changing colors on all their amps or just some of them?
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Re: Pills

Post by BigRed2294 » Tuesday, 20 August 2013, 5:25 AM

how do i open my amp if the cooling fins are riveted on and the only other screws are the ones that hold the connections on in the back? do i dare drill the rivets out?

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Re: Pills

Post by redlght » Tuesday, 20 August 2013, 8:47 AM

2sc2990 or equivalent out of circuit testing of diode bridges
Base to emitter will show a resistance in one direction only.
Base to collector will show a resistance in one direction only.
Emitter to collector should show open both ways.
any other readings it is either open or shorted
(Collector marked with a slanted edge)
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Re: Pills

Post by 743 » Tuesday, 24 December 2013, 10:41 AM

Yeah it's a pill, and a good one. The SD1446 was designed for SSB. Two of them are used in RM's KLV 550 which was a good amp but I overdrove it and it died.

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Re: Pills

Post by silvereagle1 » Tuesday, 24 December 2013, 12:04 PM

BigBopper wrote:Many questions about pills, they are the transistor in an amp, looks like an aspirin, look at the picture you'll see a white transistor"PILL"(1446)

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Boy has this amp come a long way since 2007.

Tuesday, 24 December 2013, 14:15 PM

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Re: Pills

Post by 222DBFL » Tuesday, 24 December 2013, 22:18 PM

Hey fletch57, I would lower your dead key to 2 watts and see if it keys up, and what the key up watts are, the 1446 transistors don't like a lot of dead key wattage as far as I know, may sound better with a lower dead key unless the amp calls for a 4 wat dead key.

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Re: Pills

Post by Foliant » Wednesday, 25 December 2013, 15:46 PM

The-kid wrote:hey is there a way to test the pill's in the box with out takeing them out ?
You may lift up Base and Collector to measure a Pill
You may lift up Drain and Gate to measure a MOSFET
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Re:

Post by Skipper 169 » Tuesday, 11 March 2014, 1:37 AM

Runt wrote:What's this "Mosfet" final I'm hearing about? Is this the new rage??
No, they are the new junk.
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