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In The Name Of Ham Radio....... I have put a number of CB'ers and Chicken-Banders hiding behind Amateur Radio Service licenses in headlocks and gave them noogies. .

Kenny, What does your amp do that it should not do or, what doesn't it do that it is supposed to do? .

Thank you, my blood pressure dropped 20 points when I started viewing the forum with FireFox configured as you suggested. .

Look out, I may just resemble that remark! "J".......ooops, I mean paws.

Yes, and it is "All your Fault"! .

I vote that you don't, it was done in the past. Through someone's infinite wisdom, those "CCM/AMPower/Justin/Mopar/et al." arguments about the 50 ways to apply 6/10 of 1 volt to the base of a transistor did not get transfered to the new forum. For the sake of appearances, this is the "AMATEUR...

Why not start a discussion about the various bias designs, filtering and just basic theory based around transistorized RF amplifiers. Swap ideas, schematics etc. etc. . . . . . . HERE!

All very good 'cept for one thing, in my experience, it has been good engineering practice to use Teflon or some other highly resistive material (Bakelite) as the form to wind your High Voltage Plate Choke on. If, we look at the diagram, you will see that there are no dotted lines associated...

While attempting to help a guy out with his amp, I went to that Tricky CB site and looked up the electrical road map for the amp in question. I found this schematic: It is mistakenly drawn and cannot be used, it should be corrected. there are two mistakes on the drawing, one where...

Disconnect the trimmers from the circuit, visually inspect the device by removing the screw and counting the mica / metal plates; go to your junk box and match it up with one you find. If you have to crank the trimmer too tight for max output/minimum SWR then, you need a larger value while...

Clearly, you have the "B" Model (B=Base, M=Mobile) of the Maco 300. It seems that you have burned the plate choke (where the B+ is fed to the tubes) for your driver stage; this could have been caused by a shorted tube drawing too much current. Find out what caused the problem before you...

Disclaimer: By reading this post and following these directions it is presumed that you have the technical knowledge and common sense enough to not get your azz zapped while trouble shooting and fixing your equipment; if you do, don't blame it on me! Using the Palomar Skipper 300 schematic...

Personally, I have not had to. .

It is hard to tell from the pics, looks like a Firebird that I have seen. The keyer circuit is probably that metal can top hat transistor, 2n2905 (guessing from the components around it.) Does the pre-amp still work while in stand-by? .

Come on Scrooge, give us something positive.

Run it at the 700 watt mark with 4 watts in and you will never have to worry about it. .

11/10/09 .

Back at you "Keyboard Breath"! This board is also used in my RCI Mirage 2950, maybe that why the part number refers to the "2950". . .

DPT295042z The CPU board in this radio is is the DPT295042z, the same boards are in the 2527, the RCI 2950, 2970 and, the RCi 2990. The CPU / PLL goes crazy and thre radio has to be reset to the desire operating frequency when powered back on. The is no visibile battery backup for the CPU...

I have a Ranger (Mirage) 2950, this radio does not like the cold. This radio resets itself to 26.000 Mhz or, will turn on and be stuck at 31.999 Mhz until I go to the "Manual" mode and tap the transmit button. CB Tricks says that there is a battery for the cmos in the CPU but, I do not...