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1. [Amps] Speaking of Palomar (score: 1): Author: N8WNB at aol.com (N8WNB@aol.com); Date: Wed Mar 12 10:22:04 2003; I have one of the new Palomar amps, it is the HD-250. It come with absolutely no paper work whatsoever. It operates from 10-40 with no tuning (it cannot be tuned). I use it in conjunction with a 25 w; /archives//html/Amps/2003-03/msg00470.html (7,686 bytes)
2. [Amps] Speaking of Palomar (score: 1): Author: vic at rakefet.com (Vic Rosenthal); Date: Wed Mar 12 11:15:53 2003; I am not fmiliar with this particular model, but if it does not have a switched lowpass filter (in other words, if it doesn't have a bandswitch) then it is certainly generating harmonics to a degree; /archives//html/Amps/2003-03/msg00474.html (7,854 bytes)
3. [Amps] Speaking of Palomar (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Wed Mar 12 11:31:50 2003; CCI (Communications Concepts) sells LP filter kits to go with their Motorola App-note based amplifiers, for users to homebrew a bandswitching filter bank and be compliant with FCC spectral purity req; /archives//html/Amps/2003-03/msg00476.html (10,108 bytes)
4. [Amps] Speaking of Palomar (score: 1): Author: n1rj at pivot.net (Roger D. Johnson); Date: Wed Mar 12 11:35:42 2003; These amps are made for CB. Most have no output filtering at all. For an example, take a look at this Palomar amplifier "review": http://home.att.net/~ralph.hartwell/pe600pl/pe600pl.htm 73, Roger; /archives//html/Amps/2003-03/msg00477.html (7,558 bytes)
5. [Amps] Speaking of Palomar (score: 1): Author: n1rj at pivot.net (Roger D. Johnson); Date: Wed Mar 12 11:50:29 2003; Looking at the schematic of the Palomar "linear", I see it has a simplistic diode biasing scheme. This is the same type of circuit used in many of the VHF solid state amps which have a well deserved; /archives//html/Amps/2003-03/msg00478.html (7,691 bytes)
6. [Amps] Speaking of Palomar (score: 1): Author: af2c at yahoo.com (Jay Musikar); Date: Wed Mar 12 16:44:57 2003; I suspect that you are looking at an amp made for CB and not an amp made by the Palomar company that makes stuff for amateur radio. The amps were rf triggered. The worked well with QRP amateur rigs,; /archives//html/Amps/2003-03/msg00483.html (9,119 bytes)
7. [Amps] Speaking of Palomar (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Wed Mar 12 18:01:38 2003; absolutely be are Hi Nate, I'd be real careful about using such an amplifier. It certainly could not pass FCC requirements for harmonics and spurious, and it almost certainly splatters a great deal.; /archives//html/Amps/2003-03/msg00486.html (8,784 bytes)
8. [Amps] Speaking of Palomar (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Wed Mar 12 18:14:37 2003; Motorola bank them might If the amp does not have a filter, you can be sure it has no bias and probably is not correctly impedance matched. A filter would make it a CW amp (but add clicks if it was; /archives//html/Amps/2003-03/msg00487.html (8,976 bytes)
9. [Amps] Speaking of Palomar (score: 1): Author: TimNebo at aol.com (TimNebo@aol.com); Date: Thu Mar 13 10:12:01 2003; all of the ss palomar cb amps i have seen were biased ab1.; /archives//html/Amps/2003-03/msg00510.html (8,508 bytes)
10. [Amps] Speaking of Palomar (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Thu Mar 13 10:52:44 2003; The Mot App Note (and Engineering Bulletin) amps sold for linear service do have active bias circuitry. I've built several of these, and took some data on the EB-63 model a few months ago. Using a CW; /archives//html/Amps/2003-03/msg00516.html (9,761 bytes)
11. [Amps] Speaking of Palomar (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Thu Mar 13 11:22:09 2003; [Steve Katz] I guess I have to ask: Biased by what circuitry? A diode? (I'd really like to know, since I don't have anything made by Palomar...) -WB2WIK/6; /archives//html/Amps/2003-03/msg00523.html (8,275 bytes)
12. [Amps] Speaking of Palomar (score: 1): Author: n1rj at pivot.net (Roger D. Johnson); Date: Thu Mar 13 11:50:24 2003; Is AB1 even a valid class of bias for a bipolar transistor? How is it defined? 73, Roger; /archives//html/Amps/2003-03/msg00527.html (8,636 bytes)
13. [Amps] Speaking of Palomar (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Thu Mar 13 11:56:56 2003; Steve: I have also built several amplifiers based on the "Granberg" doctrine, and my results agree very well with yours. I have tried a number of bias schemes ranging from dirt-simple to over-the-top; /archives//html/Amps/2003-03/msg00528.html (9,222 bytes)
14. [Amps] Speaking of Palomar (score: 1): Author: vic at rakefet.com (Vic Rosenthal); Date: Thu Mar 13 12:50:33 2003; The 1/2 distinction only applies to tubes. Class AB (for transistors or tubes) means that the conduction angle is more than 180 degrees (180 degrees is class B) and less than 360 degrees (class A). B; /archives//html/Amps/2003-03/msg00531.html (8,086 bytes)
15. [Amps] Speaking of Palomar (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Thu Mar 13 13:49:53 2003; There is no such thing as a class AB1 bipolar amplifier. Bipolar transistors linear amplifiers, by electrical requirements, draw base current over at least half the input cycle. Sub 1 indicates no d; /archives//html/Amps/2003-03/msg00533.html (8,382 bytes)
16. [Amps] Speaking of Palomar (score: 1): Author: 2 at vc.net (rlm); Date: Thu Mar 13 19:49:16 2003; ** correctamundo, T.R.. - R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K, www.vcnet.com/measures. end; /archives//html/Amps/2003-03/msg00542.html (7,497 bytes)
17. [Amps] Speaking of Palomar (score: 1): Author: TimNebo at aol.com (TimNebo@aol.com); Date: Fri Mar 14 09:07:14 2003; your correct tom, the ab1 was a typo after a days work and a few 807's after the job. however these plaomar amps are indeed a biased amp whether it be the simple diode method or not it works rather w; /archives//html/Amps/2003-03/msg00544.html (9,402 bytes)

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